feat: added activity log

Reviewed-on: #21

.gitea/workflows/release-docker.yaml

@@ -6,31 +6,38 @@ on:
 
 jobs:
   build-and-push:
-    runs-on: ubuntu-latest
+    runs-on: docker-builder
+
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
-      - name: Set up QEMU
+      - name: Enable QEMU for multi-arch builds
-        uses: actions/setup-qemu-action@v3
+        run: |
+          docker run --privileged --rm tonistiigi/binfmt --install all
 
-      - name: Set up Docker Buildx
+      - name: Create and use Docker Buildx builder
-        uses: actions/setup-buildx-action@v3
+        run: |
+          docker buildx create --name miauinv-builder --use || docker buildx use miauinv-builder
+          docker buildx inspect --bootstrap
 
       - name: Log in to Gitea Container Registry
-        uses: docker/login-action@v3
+        run: |
-        with:
+          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login git.miaurizius.de \
-          registry: git.miaurizius.de
+            --username "${{ secrets.REGISTRY_USER }}" \
-          username: ${{ gitea.actor }}
+            --password-stdin
-          password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Build and push Docker image
+      - name: Prepare Docker image tags
-        uses: docker/build-push-action@v6
+        run: |
-        with:
+          IMAGE_REPO="$(echo "git.miaurizius.de/${{ gitea.repository }}" | tr '[:upper:]' '[:lower:]')"
-          context: .
+          echo "IMAGE_REPO=$IMAGE_REPO" >> "$GITHUB_ENV"
-          file: ./Dockerfile
+
-          push: true
+      - name: Build and push multi-arch Docker image
-          platforms: linux/amd64,linux/arm64
+        run: |
-          tags: |
+          docker buildx build \
-            git.miaurizius.de/${{ gitea.repository }}:latest
+            --platform linux/amd64,linux/arm64 \
-            git.miaurizius.de/${{ gitea.repository }}:${{ gitea.event.release.tag_name }}
+            --file ./Dockerfile \
+            --tag "$IMAGE_REPO:latest" \
+            --tag "$IMAGE_REPO:${{ gitea.event.release.tag_name }}" \
+            --push \
+            .

.gitea/workflows/test-and-lint.yaml

@@ -1,30 +1,33 @@
-name: Code Quality and Testing
+name: test-and-lint
 
 on:
-  push:
-    branches: [ main, 'feature/**', 'bugfix/**', 'chore/**', 'refactor/**' ]
   pull_request:
-    branches: [ main ]
+    branches: [main]
+  push:
+    branches: [main]
 
 jobs:
   test-and-lint:
-    runs-on: ubuntu-latest
+    runs-on: go-1.26
+
     steps:
-      - name: Checkout repository
+      - uses: actions/checkout@v4
-        uses: actions/checkout@v4
 
-      - name: Set up Go
+      - name: Check formatting
-        uses: actions/setup-go@v5
-        with:
-          go-version: '1.22'
-
-      - name: Check Go Formatting (gofmt)
         run: |
-          if [ -n "$(gofmt -l .)" ]; then
+          files="$(gofmt -l .)"
-            echo "The following files are not properly formatted. Please run 'gofmt -w .'"
+          if [ -n "$files" ]; then
-            gofmt -l .
+            echo "$files"
             exit 1
           fi
 
-      - name: Run Unit Tests
+      - name: Check modules
-        run: go test -v ./...
+        run: |
+          go mod tidy
+          git diff --exit-code go.mod go.sum
+
+      - name: Vet
+        run: go vet ./...
+
+      - name: Test
+        run: go test ./...

CONTRIBUTING.md

@@ -0,0 +1,238 @@
+# Contributing to MiauInv
+
+Thank you for considering a contribution to MiauInv.
+
+MiauInv is a self-hosted/private inventory management system. Contributions are accepted through pull requests only. Direct pushes to the `main` branch are not allowed.
+
+## Contribution Model
+
+All changes must be submitted through pull requests.
+
+This applies to:
+
+- new features,
+- bug fixes,
+- refactoring,
+- documentation updates,
+- CI/CD changes,
+- security improvements,
+- release preparation work.
+
+Contributors should work from a fork of the repository. Changes should be developed in a dedicated branch in the fork and then submitted as a pull request to the upstream repository.
+
+Code snippets, patches, or implementation ideas are only accepted into the project if they are submitted through a pull request.
+
+## Protected Main Branch
+
+The `main` branch is protected.
+
+The following rules apply:
+
+- nobody may push directly to `main`,
+- all changes must go through pull requests,
+- pull requests must target `main` unless a maintainer explicitly requests a different target,
+- every commit in a pull request must be signed,
+- unsigned commits will not be accepted.
+
+## Signed Commits
+
+All commits must be signed.
+
+This is mandatory for:
+
+- commits on feature branches,
+- commits on bugfix branches,
+- commits on chore/refactoring branches,
+- commits in pull requests,
+- release preparation commits.
+
+Pull requests containing unsigned commits must be fixed before they can be merged.
+
+Example:
+
+```bash
+git commit -S -m "feat(auth): add account recovery flow"
+```
+
+To check whether commits are signed:
+
+```bash
+git log --show-signature
+```
+
+If a commit was created without a signature, rewrite or recreate it before opening the pull request.
+
+## Branch Naming
+
+Branches should use lowercase, hyphen-separated descriptions and include the related issue ID where possible.
+
+Recommended format:
+
+```text
+<type>/<issue-id>-<lowercase-description>
+```
+
+Examples:
+
+```text
+feature/5-mfa-support
+bugfix/12-fix-refresh-token-rotation
+chore/18-update-ci-workflow
+docs/21-update-authentication-docs
+refactor/24-clean-up-storage-layer
+```
+
+Common branch types:
+
+| Type | Usage |
+| --- | --- |
+| `feature` | New functionality. |
+| `bugfix` | Bug fixes. |
+| `chore` | Maintenance work, tooling, dependency updates, CI changes. |
+| `docs` | Documentation-only changes. |
+| `refactor` | Code restructuring without functional behavior changes. |
+| `release` | Release preparation branches. |
+
+## Feature and Bugfix Workflow
+
+When working on a feature, bugfix, or other change:
+
+1. Create or choose the related issue.
+2. Fork the repository.
+3. Create a branch in your fork using the branch naming scheme.
+4. Implement the change.
+5. Keep commits signed.
+6. Push the branch to your fork.
+7. Open a pull request against the upstream `main` branch.
+8. Use the pull request template.
+9. Ensure the pull request describes the change and links the issue.
+
+When a feature, bugfix, or chore branch is complete, a pull request may be created from that branch into `main`.
+
+## Pull Requests
+
+Pull requests must:
+
+- use the repository pull request template,
+- describe the change clearly,
+- link the related issue where applicable,
+- contain signed commits only,
+- avoid unrelated changes,
+- keep documentation updated when behavior changes,
+- keep the implementation consistent with the existing code structure.
+
+Pull requests should be focused. A pull request should usually address one feature, one bug, or one maintenance task.
+
+If a pull request changes authentication, authorization, account security, database schema, or deployment behavior, the relevant documentation should be updated in the same pull request.
+
+## Issues
+
+Issues should use the available issue templates whenever possible.
+
+A good issue should include:
+
+- a clear description,
+- expected behavior,
+- actual behavior, if reporting a bug,
+- reproduction steps, if applicable,
+- relevant logs, screenshots, or configuration snippets,
+- the affected version or branch, if known.
+
+Feature requests should describe the use case and the expected behavior instead of only describing an implementation detail.
+
+## Releases
+
+Release preparation work should happen on release branches.
+
+Release branch format:
+
+```text
+release/vX.Y.Z
+```
+
+Example:
+
+```text
+release/v1.0.1
+```
+
+Version identifiers follow the `vX.Y.Z` format, for example:
+
+```text
+v1.0.1
+```
+
+When the changes for a version are complete:
+
+1. finalize the release branch,
+2. open a pull request from the release branch into `main`,
+3. merge the release changes into `main`,
+4. create the release,
+5. update and publish Docker images.
+
+Release branches should only contain changes intended for that release.
+
+## Documentation
+
+Documentation should be updated when a change affects:
+
+- setup,
+- configuration,
+- deployment,
+- API behavior,
+- authentication,
+- authorization,
+- database schema,
+- security behavior,
+- CI/CD behavior.
+
+Documentation should be technical, accurate, and written in English.
+
+## Code Style
+
+Follow the existing project structure and style.
+
+General expectations:
+
+- keep handlers in `handlers/`,
+- keep database access in `storage/`,
+- keep shared types in `models/`,
+- keep authentication helpers in `auth/`,
+- keep frontend behavior in `frontend/assets/js/`,
+- keep server route wiring in `server/`,
+- use clear names,
+- avoid unrelated rewrites,
+- keep changes as small as reasonably possible.
+
+Go code must be formatted with:
+
+```bash
+gofmt -w .
+```
+
+## Validation
+
+Before opening a pull request, run the checks that are relevant to the change.
+
+Recommended commands:
+
+```bash
+gofmt -w .
+go test ./...
+go vet ./...
+```
+
+If the change affects Docker deployment, also verify that the Docker image builds successfully.
+
+## Security-Relevant Changes
+
+Changes affecting authentication, authorization, session handling, 2FA, recovery codes, cookies, rate limiting, or database security should be kept especially focused.
+
+Security-sensitive pull requests should clearly explain:
+
+- what behavior changed,
+- what threat or issue is addressed,
+- whether sessions, tokens, or stored secrets are affected,
+- whether existing users or deployments need migration steps.
+
+Do not include secrets, private keys, real tokens, production database files, or private configuration values in commits or pull requests.

README.md

@@ -1,71 +1,25 @@
 # MiauInv
 
-MiauInv is a lightweight inventory, stock, and project allocation management system written in Go. It provides a server-rendered dashboard with HTMX-style page composition, vanilla JavaScript for API interactions, SQLite for persistence, JWT-based sessions, refresh-token rotation, account settings, and optional TOTP-based two-factor authentication.
+MiauInv is a secure, lightweight inventory, stock, and project allocation tracking system written in Go. It uses server-rendered HTML blocks with a small HTMX-style frontend layer for a dynamic single-page feel, backed by signed JWT access tokens, database-backed refresh-token rotation, optional TOTP 2FA, optional WebAuthn passkeys, an authenticated activity log, and embedded SQLite storage.
 
-The project is designed for self-hosted/private deployments. It is not a full enterprise asset-management platform, but it already covers the main workflows needed for tracking items, locations, stock distribution, and project allocations.
+It is built for self-hosted/private deployments where you want a small, understandable asset and stock tracker without running a large enterprise inventory suite.
-
-## Contents
-
-- [Features](#features)
-- [Current Status](#current-status)
-- [Technical Stack](#technical-stack)
-- [Architecture](#architecture)
-- [Documentation](#documentation)
-- [Configuration](#configuration)
-- [Routes and API Endpoints](#routes-and-api-endpoints)
-- [Setup](#setup)
-- [Docker Deployment](#docker-deployment)
-- [Reverse Proxy Deployment](#reverse-proxy-deployment)
-- [Security Notes](#security-notes)
-- [Screenshots](#screenshots)
 
 ## Features
 
-### Inventory and allocation
+- Inventory item tracking with categories, descriptions, and quantities.
-
-- Item management with name, category, description, and total quantity.
 - Location management for physical or logical storage places.
-- Stock mapping between items and locations.
+- Stock distribution between items and locations.
-- Project management for allocating items to projects.
+- Project allocation tracking for reserving item quantities for projects.
-- Association tracking between projects and item quantities.
+- Dashboard overview for items, locations, and projects.
-- Dashboard statistics for items, locations, and projects.
+- Account settings for username, password, 2FA, and passkey management.
-
+- Optional TOTP two-factor authentication with QR setup and recovery codes.
-### Account and authentication
+- Optional discoverable WebAuthn passkey login.
-
+- Activity log for account, authentication, security, and inventory changes.
-- User registration, if enabled in the configuration.
+- Docker-ready deployment with SQLite persistence.
-- Password hashing with bcrypt.
-- Signed JWT access tokens.
-- Database-backed refresh tokens with rotation.
-- HTTP-only secure cookies for access and refresh tokens.
-- Account settings page at `/profile/settings`.
-- Username change with password confirmation.
-- Password change with old-password verification and session refresh.
-- Avatar placeholder in the account settings UI for a later avatar implementation.
-
-### Two-factor authentication
-
-- Optional TOTP 2FA using authenticator apps.
-- QR-code based setup from the account settings page.
-- Manual setup key fallback if QR scanning is not available.
-- Two-step login flow for accounts with 2FA enabled.
-- Recovery codes generated when 2FA is enabled.
-- Recovery codes are stored only as hashes.
-- Recovery codes can be downloaded as a text file after generation.
-- Recovery codes can be regenerated from account settings.
-- Recovery-code count warnings in account settings.
-- Recovery codes are one-time use.
-- The setup secret is only stored after the first valid authenticator code.
-- Existing refresh sessions are revoked when 2FA is enabled or disabled.
 
 ## Current Status
 
-MiauInv is an active private project. The current version supports core inventory workflows and account-level security settings. Some areas are intentionally still basic:
+MiauInv is an active private project. Core inventory workflows, authentication, account security settings, passkeys, and activity logging are implemented. Automated testing is currently limited and should be expanded before treating the project as high-assurance software.
-
-- Avatar support is currently only represented by a placeholder in the UI.
-- There is no dedicated admin panel yet.
-- Basic in-memory rate limiting protects login, 2FA, refresh, registration, and sensitive account endpoints.
-- Automated testing is currently limited and will be expanded in future releases.
-- The application currently uses native TLS. If deployed behind a reverse proxy, the proxy must connect to the backend over HTTPS or the backend TLS behavior must be adjusted intentionally.
 
 ## Technical Stack
 
@@ -77,142 +31,41 @@ MiauInv is an active private project. The current version supports core inventor
 | Authentication | JWT via `github.com/golang-jwt/jwt/v5` |
 | Password hashing | bcrypt via `golang.org/x/crypto/bcrypt` |
 | 2FA | TOTP via `github.com/pquerna/otp/totp` |
+| Passkeys | WebAuthn via `github.com/go-webauthn/webauthn` |
 | Frontend | Server-rendered HTML, HTMX-style structure, vanilla JavaScript |
-| Styling | Custom CSS with dark theme variables |
 | Deployment | Docker / Docker Compose |
 
-## Architecture
+## Project Structure
 
-The codebase is split into small packages with mostly direct responsibilities:
+| Path | Purpose |
-
-| Path | Responsibility |
 | --- | --- |
-| `main.go` | Application entrypoint. Initializes configuration, database, and server startup. |
+| `main.go` | Application entrypoint. |
-| `server/` | HTTP route registration, TLS listener, and server-level configuration. |
+| `server/` | Route registration, TLS listener, and rate limiting. |
-| `config/` | Runtime configuration file creation and loading. |
+| `config/` | Runtime configuration creation and loading. |
-| `auth/` | JWT generation, JWT validation, middleware, role middleware, and password helpers. |
+| `auth/` | JWT, middleware, roles, and password helpers. |
-| `handlers/` | JSON API handlers for authentication, account settings, inventory, locations, projects, stock, and associations. |
+| `handlers/` | JSON API handlers for auth, activity, account security, and inventory. |
-| `storage/` | SQLite schema setup, migrations, and database access helpers. |
+| `storage/` | SQLite schema, migrations, and database access helpers. |
 | `models/` | Shared data structures and constants. |
-| `frontend/` | HTML template rendering and static asset serving. |
+| `frontend/` | HTML templates, CSS, and JavaScript. |
-| `frontend/assets/js/` | Frontend API client, login flow, token refresh logic, account settings logic, and dashboard actions. |
+| `docs/` | Technical documentation. |
-| `frontend/htmx/` | HTML views and dashboard content templates. |
 
 ## Documentation
 
-More detailed documentation is available in:
-
 - [Authentication](docs/AUTHENTICATION.md)
 - [Database](docs/DATABASE.md)
+- [API Endpoints](docs/ENDPOINTS.md)
 - [Security](docs/SECURITY.md)
+- [Contributing](CONTRIBUTING.md)
 
 ## Configuration
 
-MiauInv reads `./appdata/config.yaml`. If the file does not exist, the application creates a default configuration on startup.
+On first startup, MiauInv creates a config file if none exists. The server also requires a `JWT_SECRET` environment variable with at least 32 characters.
-
-```yaml
-port: "8080"
-database_path: ./appdata/database.db
-certificate_path: ./appdata/cert.pem
-private_key_path: ./appdata/key.pem
-allow_registration: true
-```
-
-### Configuration fields
-
-| Field | Description |
-| --- | --- |
-| `port` | HTTPS listen port. |
-| `database_path` | SQLite database path. |
-| `certificate_path` | TLS certificate path. |
-| `private_key_path` | TLS private key path. |
-| `allow_registration` | Enables or disables public registration. If false, `/register` renders a blocked-registration page and `/api/register` is not registered. |
-
-### Environment variables
-
-| Variable | Required | Description |
-| --- | --- | --- |
-| `JWT_SECRET` | Yes | Symmetric signing secret for JWTs. Must be at least 32 characters. |
-
-Generate a local development secret with:
 
 ```bash
-openssl rand -base64 48
+export JWT_SECRET="replace-this-with-a-random-secret-of-at-least-32-chars"
 ```
 
-## Routes and API Endpoints
+For local development, generate TLS files first:
-
-### Frontend routes
-
-| Route | Method | Auth required | Description |
-| --- | --- | --- | --- |
-| `/` | `GET` | No | Landing page. |
-| `/login` | `GET` | No | Login page. Supports password login and the second 2FA step. |
-| `/register` | `GET` | No | Registration page or blocked-registration page, depending on configuration. |
-| `/dashboard` | `GET` | Yes | Dashboard overview. |
-| `/inventory` | `GET` | Yes | Stock and inventory overview. |
-| `/items` | `GET` | Yes | Item management view. |
-| `/locations` | `GET` | Yes | Location management view. |
-| `/projects` | `GET` | Yes | Project management view. |
-| `/profile/settings` | `GET` | Yes | Account settings, password changes, 2FA setup, 2FA disable, and recovery-code management. |
-| `/profile/` | `GET` | No | Placeholder page for unfinished profile subpages. |
-| `/assets/*` | `GET` | No | Static CSS/JS assets. Minified CSS/JS variants are generated on request. |
-
-### Authentication and account API
-
-| Endpoint | Method | Auth required | Description |
-| --- | --- | --- | --- |
-| `/api/register` | `POST` | No | Creates a user if registration is enabled. |
-| `/api/login` | `POST` | No | Validates username/password. Returns a full session if 2FA is disabled; otherwise returns a short-lived 2FA challenge token. |
-| `/api/login/2fa` | `POST` | No | Completes login using the 2FA challenge token plus either a TOTP code or a recovery code. |
-| `/api/refresh` | `POST` | No | Rotates a refresh token. Accepts the token from JSON or the `refresh_token` cookie. |
-| `/api/logout` | `POST` | Yes | Revokes refresh tokens for the current user and clears auth cookies. |
-| `/api/profile` | `GET` | Yes | Returns current user metadata, 2FA state, and unused recovery-code count. |
-| `/api/userinfo` | `GET` | Yes | Same user information handler as `/api/profile`. |
-| `/api/account/username` | `POST` | Yes | Changes the current username after password confirmation. |
-| `/api/account/password` | `POST` | Yes | Changes the current password, revokes old refresh tokens, and issues a new session. |
-| `/api/2fa/setup` | `POST` | Yes | Creates a pending TOTP secret and returns `secret`, `setup_token`, `otpauth_url`, and a base64 PNG QR code. |
-| `/api/2fa/enable` | `POST` | Yes | Enables 2FA after validating the temporary setup token and a TOTP code. Replaces recovery codes and revokes old sessions. |
-| `/api/2fa/disable` | `POST` | Yes | Disables 2FA after password and TOTP confirmation. Revokes sessions and clears auth cookies. |
-| `/api/2fa/recovery-codes/regenerate` | `POST` | Yes | Invalidates existing recovery codes and returns a new set after password and TOTP confirmation. |
-
-### Inventory API
-
-| Endpoint | Method | Auth required | Query parameters | Description |
-| --- | --- | --- | --- | --- |
-| `/api/item` | `GET` | Yes | `id` optional | Returns all items with aggregate quantities, or one item by ID. |
-| `/api/item` | `POST` | Yes | None | Creates an item. |
-| `/api/item` | `PUT` | Yes | `id` required | Updates item fields. |
-| `/api/item` | `DELETE` | Yes | `id` required | Deletes an item if no dependent rows block it. |
-| `/api/location` | `GET` | Yes | `id`, `content` optional | Returns all locations, one location, or location contents with `content=true`. |
-| `/api/location` | `POST` | Yes | None | Creates a location. |
-| `/api/location` | `PUT` | Yes | `id` required | Renames a location. |
-| `/api/location` | `DELETE` | Yes | `id` required | Deletes a location if no dependent rows block it. |
-| `/api/project` | `GET` | Yes | `id`, `details` optional | Returns all projects, one project, or project allocations with `details=true`. |
-| `/api/project` | `POST` | Yes | None | Creates a project. |
-| `/api/project` | `PUT` | Yes | `id` required | Updates a project. |
-| `/api/project` | `DELETE` | Yes | `id` required | Deletes a project if no dependent rows block it. |
-| `/api/stock` | `GET` | Yes | `id` optional | Returns stock entries. |
-| `/api/stock` | `POST` | Yes | None | Creates a stock entry. |
-| `/api/stock` | `PUT` | Yes | `id` required | Updates a stock entry. |
-| `/api/stock` | `DELETE` | Yes | `id` required | Deletes a stock entry. |
-| `/api/association` | `GET` | Yes | `id`, `project_id` optional | Returns project-item associations. |
-| `/api/association` | `POST` | Yes | None | Allocates item quantity to a project. |
-| `/api/association` | `PUT` | Yes | `id` required | Updates a project allocation. |
-| `/api/association` | `DELETE` | Yes | `id` required | Removes a project allocation. |
-
-## Setup
-
-### Prerequisites
-
-- Go 1.26.
-- SQLite-compatible environment.
-- OpenSSL or another way to generate TLS certificates for local development.
-- A `JWT_SECRET` with at least 32 characters.
-
-### Generate development TLS files
-
-The server uses `http.ListenAndServeTLS`, so TLS files must exist before startup.
 
 ```bash
 mkdir -p appdata
@@ -224,10 +77,9 @@ openssl req -x509 -newkey rsa:4096 \
   -subj "/CN=localhost"
 ```
 
-### Native local run
+Run locally:
 
 ```bash
-export JWT_SECRET="replace-this-with-a-random-secret-of-at-least-32-chars"
 go mod tidy
 go build -o miauinv .
 ./miauinv
@@ -241,8 +93,6 @@ https://localhost:8080
 
 ## Docker Deployment
 
-The repository contains a multi-stage Dockerfile. The final image is based on `scratch` and contains the compiled binary plus frontend assets.
-
 Example `docker-compose.yaml`:
 
 ```yaml
@@ -259,9 +109,10 @@ services:
       - ./appdata:/appdata
 ```
 
-Start the container:
+Start or update the container:
 
 ```bash
+docker compose pull
 docker compose up -d
 ```
 
@@ -271,9 +122,15 @@ View logs:
 docker compose logs -f
 ```
 
+For production updates, pin a versioned image tag and back up `appdata` before upgrading:
+
+```yaml
+image: git.miaurizius.de/miaurizius/miauinv:v1.1.1
+```
+
 ## Reverse Proxy Deployment
 
-MiauInv currently listens with native TLS. If it is deployed behind Caddy or another reverse proxy, the proxy must connect to the backend using HTTPS unless the server code is changed to listen without TLS.
+MiauInv currently listens with native TLS. When using Caddy or another reverse proxy, either proxy to the backend with HTTPS or intentionally adjust the server to listen without TLS.
 
 Example Caddy configuration with a self-signed backend certificate:
 
@@ -296,19 +153,6 @@ inv.example.com {
 
 For Docker deployments, place Caddy and MiauInv on the same Docker network and reverse proxy to the service name.
 
-## Security Notes
-
-- JWTs are signed, not encrypted. Normal access and purpose tokens must not contain secrets. The temporary 2FA setup token is a narrow exception because it carries the not-yet-enabled TOTP secret back to the authenticated browser until confirmation.
-- `JWT_SECRET` must be random and private.
-- Access tokens expire after 15 minutes.
-- Refresh tokens expire after 7 days and are rotated on refresh.
-- Refresh tokens and recovery codes are stored in the database as hashes.
-- TOTP secrets are currently stored in the database because the server must validate codes. Protect the database file accordingly.
-- Recovery codes are only shown when generated. Users should download or copy them immediately. The UI warns when few unused codes remain.
-- 2FA disable and recovery-code regeneration require both the current password and a valid TOTP code.
-- Basic in-memory rate limiting is enabled for login, 2FA, refresh, registration, and sensitive account endpoints. Use persistent or distributed rate limiting for multi-instance deployments.
-- Automated testing is currently limited. Authentication, 2FA, recovery codes, rate limiting, account settings, and inventory handlers should be covered before production use.
-
 ## Screenshots
 
 #### Dashboard

ad.html

@@ -1,359 +1,173 @@
 <!DOCTYPE html>
-<html lang="en">
+<html lang="en" data-lang="en">
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>MiauInv - Modern Inventory & Project Management</title>
+    <title>MiauInv - Lightweight Inventory Tracking</title>
     <style>
         :root {
             --bg: #0b0f19;
             --card: #111827;
-            --border: #1f2937;
+            --card-soft: #151f31;
+            --border: #233047;
             --text: #f9fafb;
-            --text-muted: #9ca3af;
+            --muted: #9ca3af;
             --accent: #3b82f6;
-            --accent-hover: #2563eb;
             --success: #10b981;
-            --code-bg: #1f2937;
-        }
-
-        * {
-            box-sizing: border-box;
-            margin: 0;
-            padding: 0;
         }
 
+        * { box-sizing: border-box; margin: 0; padding: 0; }
         body {
-            background-color: var(--bg);
+            min-height: 100vh;
+            background:
+                radial-gradient(circle at top left, rgba(59, 130, 246, 0.18), transparent 34rem),
+                radial-gradient(circle at bottom right, rgba(16, 185, 129, 0.10), transparent 30rem),
+                var(--bg);
             color: var(--text);
-            font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
+            font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
             line-height: 1.6;
-            padding: 0;
-            margin: 0;
-        }
-
-        .navbar {
-            display: flex;
-            justify-content: flex-end;
-            padding: 1rem 2rem;
-            max-width: 1000px;
-            margin: 0 auto;
         }
 
+        .container { max-width: 1120px; margin: 0 auto; padding: 1.25rem 1.5rem 4rem; }
+        .topbar { display: flex; justify-content: flex-end; margin-bottom: 3rem; }
         .lang-switch {
-            background: var(--card);
             border: 1px solid var(--border);
+            background: rgba(17, 24, 39, 0.8);
             color: var(--text);
-            padding: 0.5rem 1rem;
-            border-radius: 8px;
-            font-weight: 600;
-            cursor: pointer;
-            transition: all 0.2s ease;
-        }
-
-        .lang-switch:hover {
-            border-color: var(--accent);
-            color: var(--accent);
-        }
-
-        .container {
-            max-width: 1000px;
-            margin: 0 auto;
-            padding: 0 1.5rem 4rem 1.5rem;
-        }
-
-        header {
-            text-align: center;
-            padding: 3rem 0 3rem 0;
-        }
-
-        .brand {
-            font-size: 3.5rem;
-            font-weight: 800;
-            letter-spacing: -0.04em;
-            margin-bottom: 1rem;
-        }
-
-        .brand span {
-            color: var(--accent);
-        }
-
-        .tagline {
-            font-size: 1.25rem;
-            color: var(--text-muted);
-            max-width: 600px;
-            margin: 0 auto 2.5rem auto;
-        }
-
-        .badge-container {
-            display: flex;
-            justify-content: center;
-            gap: 0.75rem;
-            margin-bottom: 3rem;
-            flex-wrap: wrap;
-        }
-
-        .badge {
-            background: rgba(59, 130, 246, 0.1);
-            color: var(--accent);
-            border: 1px solid rgba(59, 130, 246, 0.2);
-            padding: 0.35rem 0.75rem;
             border-radius: 999px;
-            font-size: 0.85rem;
+            padding: 0.45rem 0.9rem;
-            font-weight: 600;
-        }
-
-        .badge.green {
-            background: rgba(16, 185, 129, 0.1);
-            color: var(--success);
-            border-color: rgba(16, 185, 129, 0.2);
-        }
-
-        .grid {
-            display: grid;
-            grid-template-columns: 1fr;
-            gap: 2rem;
-            margin-bottom: 4rem;
-        }
-
-        @media (min-width: 768px) {
-            .grid {
-                grid-template-columns: 1fr 1fr;
-            }
-        }
-
-        .card {
-            background: var(--card);
-            border: 1px solid var(--border);
-            border-radius: 16px;
-            padding: 2.5rem;
-            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
-        }
-
-        .card h2 {
-            font-size: 1.5rem;
             font-weight: 700;
-            margin-bottom: 1.25rem;
+            cursor: pointer;
-            letter-spacing: -0.02em;
         }
-
+        .hero { text-align: center; padding: 2.5rem 0 3.5rem; }
-        .features-list {
+        .brand { font-size: clamp(3rem, 7vw, 5.5rem); font-weight: 900; letter-spacing: -0.07em; line-height: 0.95; }
-            list-style: none;
+        .brand span { color: var(--accent); }
-            text-align: left;
+        .tagline { max-width: 820px; margin: 1.25rem auto 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.35rem); }
-        }
+        .hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.75rem; }
-
+        .hero-link {
-        .features-list li {
-            margin-bottom: 1rem;
-            display: flex;
-            align-items: flex-start;
-            gap: 0.75rem;
-            color: var(--text-muted);
-        }
-
-        .features-list li strong {
-            color: var(--text);
-        }
-
-        .features-list svg {
-            flex-shrink: 0;
-            margin-top: 0.2rem;
-            color: var(--success);
-        }
-
-        .install-section {
-            background: var(--card);
-            border: 1px solid var(--border);
-            border-radius: 16px;
-            padding: 3rem 2rem;
-            text-align: left;
-            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
-            margin-bottom: 4rem;
-        }
-
-        .install-section h2 {
-            font-size: 1.75rem;
-            margin-bottom: 0.5rem;
-            letter-spacing: -0.02em;
-        }
-
-        .install-section p {
-            color: var(--text-muted);
-            margin-bottom: 2rem;
-        }
-
-        .step {
-            margin-bottom: 2rem;
-        }
-
-        .step h3 {
-            font-size: 1.1rem;
-            margin-bottom: 0.75rem;
-            color: var(--text);
-            display: flex;
-            align-items: center;
-            gap: 0.5rem;
-        }
-
-        .step-num {
-            background: var(--border);
-            width: 24px;
-            height: 24px;
-            border-radius: 50%;
             display: inline-flex;
             align-items: center;
-            justify-content: center;
+            gap: 0.5rem;
-            font-size: 0.8rem;
+            border-radius: 999px;
-            font-weight: bold;
+            padding: 0.75rem 1.1rem;
-        }
+            text-decoration: none;
-
+            font-weight: 800;
-        pre {
-            background: var(--bg);
             border: 1px solid var(--border);
-            padding: 1rem 1.25rem;
+            color: var(--text);
-            border-radius: 10px;
+            background: rgba(17, 24, 39, 0.78);
-            font-family: monospace;
+            transition: transform 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
-            font-size: 0.9rem;
+        }
-            color: #e5e7eb;
+        .hero-link:hover { transform: translateY(-1px); border-color: rgba(59, 130, 246, 0.7); background: rgba(59, 130, 246, 0.12); }
+        .hero-link.primary { border-color: rgba(59, 130, 246, 0.48); background: rgba(59, 130, 246, 0.18); color: #dbeafe; }
+        .hero-link svg { width: 1rem; height: 1rem; }
+        .badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }
+        .badge {
+            border: 1px solid rgba(59, 130, 246, 0.28);
+            background: rgba(59, 130, 246, 0.10);
+            color: #bfdbfe;
+            border-radius: 999px;
+            padding: 0.4rem 0.8rem;
+            font-size: 0.88rem;
+            font-weight: 700;
+        }
+        .badge.green { border-color: rgba(16, 185, 129, 0.28); background: rgba(16, 185, 129, 0.10); color: #a7f3d0; }
+
+        .grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 1rem 0 3rem; }
+        .card {
+            background: linear-gradient(180deg, rgba(21, 31, 49, 0.92), rgba(17, 24, 39, 0.92));
+            border: 1px solid var(--border);
+            border-radius: 20px;
+            padding: 1.5rem;
+            box-shadow: 0 20px 45px rgba(0, 0, 0, 0.28);
+        }
+        .card h2 { font-size: 1.1rem; margin-bottom: 0.65rem; }
+        .card p { color: var(--muted); }
+        .check { color: var(--success); font-weight: 900; margin-right: 0.4rem; }
+
+        .install {
+            background: rgba(17, 24, 39, 0.82);
+            border: 1px solid var(--border);
+            border-radius: 24px;
+            padding: 2rem;
+        }
+        .install h2 { font-size: 1.7rem; margin-bottom: 0.5rem; }
+        .install > p { color: var(--muted); margin-bottom: 1.25rem; }
+        pre {
+            background: #050816;
+            border: 1px solid var(--border);
+            border-radius: 14px;
+            padding: 1rem;
             overflow-x: auto;
-            white-space: pre;
+            color: #e5e7eb;
-            margin-bottom: 1rem;
+            font-size: 0.92rem;
         }
+        footer { text-align: center; color: var(--muted); padding-top: 3rem; }
 
-        footer {
-            text-align: center;
-            padding: 3rem 0;
-            color: var(--text-muted);
-            font-size: 0.9rem;
-            border-top: 1px solid var(--border);
-        }
-
-        /* Sprach-Sichtbarkeitsregeln */
         [lang="de"] { display: none; }
-        html[data-lang="de"] [lang="de"] { display: block; }
+        html[data-lang="de"] [lang="de"] { display: initial; }
         html[data-lang="de"] [lang="en"] { display: none; }
+        html[data-lang="de"] p[lang="de"], html[data-lang="de"] div[lang="de"] { display: block; }
+        html[data-lang="de"] span[lang="de"], html[data-lang="de"] strong[lang="de"] { display: inline; }
 
-        html[data-lang="de"] span[lang="de"],
+        @media (max-width: 860px) { .grid { grid-template-columns: 1fr; } }
-        html[data-lang="de"] strong[lang="de"] {
-            display: inline;
-        }
-        html[data-lang="en"] span[lang="en"],
-        html[data-lang="en"] strong[lang="en"] {
-            display: inline;
-        }
     </style>
 </head>
-<body class="lang-en">
+<body>
-
-<div class="navbar">
-    <button class="lang-switch" id="langBtn" onclick="toggleLanguage()">DE</button>
-</div>
-
 <div class="container">
-    <header>
+    <div class="topbar">
-        <div class="brand">Miau<span>Inv</span></div>
+        <button class="lang-switch" id="langBtn" onclick="toggleLanguage()">DE</button>
-        <p class="tagline" lang="en">A secure, light-weight, and minimalistic management system for tracking your inventory stock and project allocations.</p>
-        <p class="tagline" lang="de">Ein sicheres, pfeilschnelles und minimalistisches System für deine Lagerbestände und Projekt-Zuweisungen.</p>
-
-        <div class="badge-container">
-            <span class="badge">Go Backend</span>
-            <span class="badge">HTMX Frontend</span>
-            <span class="badge">SQLite Inside</span>
-            <span class="badge green">Docker Ready</span>
-        </div>
-    </header>
-
-    <div class="grid">
-        <div class="card">
-            <h2 lang="en">Why MiauInv?</h2>
-            <h2 lang="de">Warum MiauInv?</h2>
-            <ul class="features-list">
-                <li>
-                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>
-                    <span>
-                            <strong lang="en">Zero JS-Overhead:</strong><strong lang="de">Kein JS-Overhead:</strong>
-                            <span lang="en"> Powered by HTMX for an ultra-reactive, dynamic SPA experience without heavy client-side bundles.</span>
-                            <span lang="de"> Dank HTMX extrem reaktiv und dynamisch wie eine SPA, aber ohne tonnenweise schweres JavaScript.</span>
-                        </span>
-                </li>
-                <li>
-                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>
-                    <span>
-                            <strong lang="en">Live Quantities:</strong><strong lang="de">Live-Verfügbarkeit:</strong>
-                            <span lang="en"> See overall totals, allocated project metrics, and remaining available counts instantly.</span>
-                            <span lang="de"> Siehst sofort den Gesamtbestand, was in Projekten verplant ist und was noch frei zur Verfügung steht.</span>
-                        </span>
-                </li>
-                <li>
-                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>
-                    <span>
-                            <strong lang="en">Unified Dashboards:</strong><strong lang="de">Orte & Projekte im Blick:</strong>
-                            <span lang="en"> Drill straight down into site boundaries or project lists to inspect stock components with one click.</span>
-                            <span lang="de"> Klicke auf Lagerorte oder aktive Projekte im Dashboard, um direkt den aktuellen Inhalt einzusehen.</span>
-                        </span>
-                </li>
-            </ul>
-        </div>
-
-        <div class="card">
-            <h2 lang="en">Security & Tech Stack</h2>
-            <h2 lang="de">Sicherheit & Tech</h2>
-            <ul class="features-list">
-                <li>
-                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>
-                    <span>
-                            <strong lang="en">Dual-Token Security:</strong><strong lang="de">Dual-Token Security:</strong>
-                            <span lang="en"> Uses robust cryptographically signed JWT cookies combined with seamless backend refresh token rotations.</span>
-                            <span lang="de"> Zugriffsschutz über sichere, verschlüsselte JWT-Cookies inkl. Refresh-Token-Rotation.</span>
-                        </span>
-                </li>
-                <li>
-                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>
-                    <span>
-                            <strong lang="en">Native TLS Listener:</strong><strong lang="de">Native TLS Listener:</strong>
-                            <span lang="en"> Out-of-the-box enforced HTTPS transport layer security powered directly by Go's core networking.</span>
-                            <span lang="de"> Enforcierte HTTPS-Verschlüsselung direkt aus dem Go-Core heraus.</span>
-                        </span>
-                </li>
-                <li>
-                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>
-                    <span>
-                            <strong lang="en">Ultra Lightweight:</strong><strong lang="de">Leichtgewicht:</strong>
-                            <span lang="en"> Runs on absolute minimal system footprint resource margins using an embedded optimized SQLite model.</span>
-                            <span lang="de"> Minimaler Ressourcenverbrauch dank kompilierter Go-Binary und eingebetteter SQLite-Datenbank.</span>
-                        </span>
-                </li>
-            </ul>
-        </div>
     </div>
 
-    <div class="install-section">
+    <section class="hero">
-        <h2 lang="en">Install Your Server</h2>
+        <div class="brand">Miau<span>Inv</span></div>
-        <h2 lang="de">Server installieren</h2>
+        <p class="tagline" lang="en">Secure, lightweight inventory, stock, and project allocation tracking for self-hosted environments.</p>
-
+        <p class="tagline" lang="de">Sicheres, leichtgewichtiges Inventory-, Lager- und Projektzuweisungs-Tracking für Self-Hosting.</p>
-        <p lang="en">Deploy MiauInv to your server infrastructure or local machine in less than a minute utilizing our streamlined container configurations.</p>
+        <div class="hero-actions">
-        <p lang="de">MiauInv lässt sich dank vorkonfiguriertem Docker-Setup innerhalb weniger Sekunden auf deinem Server oder lokalen System starten.</p>
+            <a class="hero-link primary" href="https://git.miaurizius.de/MiauRizius/MiauInv" target="_blank" rel="noopener noreferrer">
-
+                <span lang="en">View repository</span>
-        <div class="step">
+                <span lang="de">Repository ansehen</span>
-            <h3>
+                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M7 17L17 7"></path><path d="M7 7h10v10"></path></svg>
-                <span class="step-num">1</span>
+            </a>
-                <span lang="en">Setup Asset Directories and TLS</span>
+            <a class="hero-link" href="https://git.miaurizius.de/MiauRizius/MiauInv/packages" target="_blank" rel="noopener noreferrer">
-                <span lang="de">Ordner und Zertifikate vorbereiten</span>
+                <span lang="en">Container image</span>
-            </h3>
+                <span lang="de">Container-Image</span>
-            <p lang="en">Since MiauInv natively enforces encrypted communication channels, initialize your tracking asset directory and place your TLS files there (or generate a self-signed keypair for testing targets):</p>
+            </a>
-            <p lang="de">Da MiauInv standardmäßig verschlüsseltes HTTPS erzwingt, erstelle den Appdata-Ordner und lege deine SSL-Zertifikate ab (oder generiere ein Self-Signed Cert für Tests):</p>
-            <pre>mkdir -p appdata
-openssl req -x509 -newkey rsa:4096 -keyout appdata/key.pem -out appdata/cert.pem -sha256 -days 365 -nodes -subj "/CN=localhost"</pre>
         </div>
+        <div class="badges">
+            <span class="badge">Go</span>
+            <span class="badge">SQLite</span>
+            <span class="badge">HTMX-style UI</span>
+            <span class="badge green">Docker ready</span>
+        </div>
+    </section>
 
-        <div class="step">
+    <section class="grid">
-            <h3>
+        <article class="card">
-                <span class="step-num">2</span>
+            <h2 lang="en"><span class="check">✓</span>Track stock clearly</h2>
-                <span lang="en">Configure Docker Compose</span>
+            <h2 lang="de"><span class="check">✓</span>Bestände klar verfolgen</h2>
-                <span lang="de">Docker Compose Datei anlegen</span>
+            <p lang="en">Manage items, locations, quantities, and project allocations from one small dashboard.</p>
-            </h3>
+            <p lang="de">Verwalte Items, Lagerorte, Mengen und Projektzuweisungen in einem kleinen Dashboard.</p>
-            <p lang="en">Create a <code>docker-compose.yaml</code> layout file in the parent folder, and inject the orchestration service blocks. Ensure your <code>JWT_SECRET</code> environment variable meets the minimum security threshold length requirements:</p>
+        </article>
-            <p lang="de">Erstelle eine <code>docker-compose.yaml</code> im selben Verzeichnis und füge folgenden Inhalt ein. Passe den <code>JWT_SECRET</code>-String an:</p>
+        <article class="card">
-            <pre>services:
+            <h2 lang="en"><span class="check">✓</span>Built-in account security</h2>
+            <h2 lang="de"><span class="check">✓</span>Account-Sicherheit inklusive</h2>
+            <p lang="en">Signed JWT sessions, refresh-token rotation, TOTP 2FA, recovery codes, passkeys, and an activity log.</p>
+            <p lang="de">Signierte JWT-Sessions, Refresh-Token-Rotation, TOTP-2FA, Recovery-Codes, Passkeys und Activity Log.</p>
+        </article>
+        <article class="card">
+            <h2 lang="en"><span class="check">✓</span>Small deployment footprint</h2>
+            <h2 lang="de"><span class="check">✓</span>Kleiner Deployment-Footprint</h2>
+            <p lang="en">A compiled Go binary with embedded SQLite persistence and a minimal Docker image.</p>
+            <p lang="de">Kompilierte Go-Binary mit eingebetteter SQLite-Persistenz und minimalem Docker-Image.</p>
+        </article>
+    </section>
+
+    <section class="install">
+        <h2 lang="en">Run with Docker Compose</h2>
+        <h2 lang="de">Mit Docker Compose starten</h2>
+        <p lang="en">Create an appdata directory, provide TLS files, set a strong JWT secret, and start the container.</p>
+        <p lang="de">Appdata-Ordner erstellen, TLS-Dateien bereitstellen, starkes JWT-Secret setzen und Container starten.</p>
+        <pre>services:
   miauinv:
     image: git.miaurizius.de/miaurizius/miauinv:latest
     container_name: MiauInv
@@ -361,47 +175,26 @@ openssl req -x509 -newkey rsa:4096 -keyout appdata/key.pem -out appdata/cert.pem
     ports:
       - "8080:8080"
     environment:
-      - JWT_SECRET=SECURE_RANDOM_STRING_HERE_MIN_32_CHARS
+      - JWT_SECRET=replace-this-with-a-random-secret-of-at-least-32-chars
     volumes:
       - ./appdata:/appdata</pre>
-        </div>
+    </section>
-
-        <div class="step">
-            <h3>
-                <span class="step-num">3</span>
-                <span lang="en">Boot the Environment</span>
-                <span lang="de">Container starten</span>
-            </h3>
-            <p lang="en">Fire up the production background workers by executing your infrastructure controls daemon tasks:</p>
-            <p lang="de">Führe nun einfach den Start-Befehl aus, um das Image zu ziehen und im Hintergrund zu starten:</p>
-            <pre>docker-compose up -d</pre>
-
-            <p style="margin-top: 0.5rem;" lang="en">Everything is set up! Your instance is running and fully accessible at <strong>https://localhost:8080</strong>.</p>
-            <p style="margin-top: 0.5rem;" lang="de">Fertig! Dein Server läuft und ist sofort unter <strong>https://localhost:8080</strong> erreichbar.</p>
-        </div>
-    </div>
 
     <footer>
-        <p lang="en">&copy; 2026 Maurice Larivière.</p>
+        <p>&copy; 2026 Maurice Larivière.</p>
-        <p lang="de">&copy; 2026 Maurice Larivière.</p>
     </footer>
 </div>
-
 <script>
     function setLanguage(lang) {
         document.documentElement.setAttribute('data-lang', lang);
         document.getElementById('langBtn').innerText = lang === 'en' ? 'DE' : 'EN';
         localStorage.setItem('miauinv-lang', lang);
     }
-
     function toggleLanguage() {
-        const currentLang = document.documentElement.getAttribute('data-lang') || 'en';
+        const current = document.documentElement.getAttribute('data-lang') || 'en';
-        const nextLang = currentLang === 'en' ? 'de' : 'en';
+        setLanguage(current === 'en' ? 'de' : 'en');
-        setLanguage(nextLang);
     }
-
+    setLanguage(localStorage.getItem('miauinv-lang') || 'en');
-    const savedLang = localStorage.getItem('miauinv-lang') || 'en';
-    setLanguage(savedLang);
 </script>
 </body>
 </html>

docs/AUTHENTICATION.md

@@ -1,6 +1,6 @@
 # Authentication Architecture
 
-MiauInv uses signed JWT access tokens, database-backed refresh tokens, and optional TOTP-based two-factor authentication. The authentication flow is implemented in the `auth/`, `handlers/`, `storage/`, and `frontend/assets/js/` packages.
+MiauInv uses signed JWT access tokens, database-backed refresh tokens, optional TOTP-based two-factor authentication, and optional WebAuthn passkey authentication. The authentication flow is implemented in the `auth/`, `handlers/`, `storage/`, and `frontend/assets/js/` packages.
 
 JWTs are signed with a symmetric secret from the `JWT_SECRET` environment variable. They are not encrypted. Access tokens and normal purpose tokens should therefore contain identity and authorization metadata only, not secrets. The short-lived 2FA setup token intentionally carries the not-yet-enabled TOTP secret because the same secret is already returned to the authenticated browser for QR/manual setup and is not stored server-side until confirmation.
 
@@ -12,8 +12,10 @@ JWTs are signed with a symmetric secret from the `JWT_SECRET` environment variab
 | Middleware | `auth/middleware.go` | Extracts access tokens from bearer headers or cookies and injects claims into the request context. |
 | Password helpers | `auth/password.go` | bcrypt hashing and verification. |
 | Login/account handlers | `handlers/account.go` | Register, login, 2FA, refresh, logout, account settings, and user metadata. |
-| Persistent session storage | `storage/storage.go` | Refresh tokens, 2FA state, TOTP secret, and recovery-code hashes. |
+| Activity handlers | `handlers/activity.go` | Activity log endpoint, activity metadata recording, and audit middleware. |
-| Frontend auth logic | `frontend/assets/js/auth.js`, `frontend/assets/js/login.js`, `frontend/assets/js/api.js` | Login UI, token refresh, account settings, and 2FA UI interactions. |
+| Passkey handlers | `handlers/passkeys.go` | WebAuthn/passkey registration, login, removal, and disable flows. |
+| Persistent session storage | `storage/storage.go`, `storage/passkeys.go` | Refresh tokens, 2FA state, TOTP secret, recovery-code hashes, passkey credentials, and WebAuthn challenge state. |
+| Frontend auth logic | `frontend/assets/js/auth.js`, `frontend/assets/js/login.js`, `frontend/assets/js/api.js` | Login UI, passkey login, token refresh, account settings, 2FA UI interactions, and passkey UI interactions. |
 
 ## Token Types
 
@@ -23,6 +25,7 @@ JWTs are signed with a symmetric secret from the `JWT_SECRET` environment variab
 | Refresh token | `refresh_token` HTTP-only secure cookie and JSON response body | 7 days | Rotates sessions after access-token expiry. Stored in the database only as a hash. |
 | 2FA challenge token | JSON response from `/api/login` | 5 minutes | Allows `/api/login/2fa` to complete login after password verification. It is purpose-bound to `2fa_login`. |
 | 2FA setup token | JSON response from `/api/2fa/setup` | 10 minutes | Carries the not-yet-enabled TOTP secret until `/api/2fa/enable` validates the first code. It is purpose-bound to `2fa_setup`. |
+| Passkey ceremony token | JSON response from `/api/passkeys/*/options` | 5 minutes | Opaque server-side reference to WebAuthn session data stored in `passkey_challenges`. Used for passkey registration and login. |
 
 ## Normal Login Flow Without 2FA
 
@@ -67,6 +70,47 @@ JWTs are signed with a symmetric secret from the `JWT_SECRET` environment variab
 11. If either check succeeds, the server issues the normal access/refresh token session.
 12. If a recovery code was used, it is marked as used and cannot be used again.
 
+
+## Passkey Registration Flow
+
+Passkeys are managed from `/profile/settings`. Registration requires an authenticated session and current-password confirmation.
+
+1. Client sends `POST /api/passkeys/register/options` with a passkey name and the current password.
+2. Server verifies the password.
+3. Server creates WebAuthn registration options with resident-key and user-verification requirements.
+4. Server stores the WebAuthn session data in `passkey_challenges` and returns only an opaque `session_token` plus the public registration options.
+5. Browser calls `navigator.credentials.create()` with the returned public-key options.
+6. Client sends the browser credential response to `POST /api/passkeys/register/finish`.
+7. Server consumes the one-time challenge, verifies the WebAuthn response, stores the credential, revokes existing refresh sessions, and issues a new current session.
+
+The server stores credential metadata and public-key credential data. It does not store private keys.
+
+## Passkey Login Flow
+
+Passkey login is available from the normal login page.
+
+1. Client sends `POST /api/passkeys/login/options`.
+2. Server creates a discoverable passkey login challenge without requiring a username.
+3. Server stores the WebAuthn session data in `passkey_challenges` and returns an opaque `session_token` plus assertion options.
+4. Browser calls `navigator.credentials.get()` with the returned public-key options.
+5. Client sends the browser assertion response to `POST /api/passkeys/login/finish`.
+6. Server consumes the one-time challenge and verifies the WebAuthn assertion.
+7. The stored credential data is updated after successful login.
+8. Server issues a normal access/refresh session.
+
+Passkey login is treated as a complete phishing-resistant sign-in method. The application requires WebAuthn user verification for passkey registration and login, so a valid passkey assertion is not followed by a separate TOTP challenge.
+
+## Passkey Management
+
+The account settings page supports:
+
+- listing registered passkeys,
+- adding a passkey,
+- removing a single passkey,
+- disabling all passkeys.
+
+Adding, removing, or disabling passkeys revokes existing refresh sessions and issues a fresh session for the current browser. Removing or disabling passkeys requires current-password confirmation.
+
 ## TOTP Setup Flow
 
 The account settings page at `/profile/settings` exposes the UI for TOTP setup.
@@ -178,6 +222,9 @@ The account settings page currently supports:
 
 - username changes,
 - password changes,
+- passkey registration,
+- passkey removal,
+- passkey disable,
 - TOTP 2FA setup,
 - TOTP 2FA disable,
 - recovery-code download after generation,
@@ -187,7 +234,7 @@ Username changes require the current password.
 
 Password changes require the current password, reject passwords longer than bcrypt's 72-byte effective limit, revoke existing refresh tokens, and issue a new session.
 
-2FA activation also revokes existing refresh tokens and issues a new session for the current browser. Other devices must log in again and complete 2FA.
+2FA activation also revokes existing refresh tokens and issues a new session for the current browser. Passkey changes also revoke existing refresh tokens and issue a new current session. Other devices must log in again and complete the configured authentication flow.
 
 ## Middleware Behavior
 
@@ -215,5 +262,24 @@ The current implementation is usable for private/self-hosted deployments, but th
 - Replace the current in-memory rate limiter with persistent or distributed rate limiting if the app is deployed across multiple instances.
 - Add audit logging for account security changes.
 - Add optional session/device management UI.
-- Consider encrypting TOTP secrets at rest if the deployment threat model includes database disclosure.
+- Consider encrypting TOTP secrets and passkey credential data at rest if the deployment threat model includes database disclosure.
 - Expand tests for all authentication and account settings handlers.
+
+## Activity Log
+
+MiauInv records account, authentication, security, and inventory activity in the `activity_logs` table. The log is designed for user-visible traceability and lightweight security review.
+
+Recorded examples include:
+
+- password login success and failure,
+- 2FA login success and failure,
+- refresh-token rotation,
+- logout,
+- username and password changes,
+- TOTP setup, enable, disable, and recovery-code regeneration,
+- passkey registration, login, removal, and disable,
+- inventory, location, project, stock, and allocation mutations.
+
+The log does not store request bodies or secret values. Passwords, TOTP codes, recovery codes, refresh tokens, and WebAuthn payloads are excluded.
+
+`GET /api/activity` returns the current user's recent activity with bounded `limit` and `offset` pagination. Admin users may request all activity with `?all=true`.

docs/DATABASE.md

@@ -6,13 +6,17 @@ MiauInv uses SQLite for persistent storage. The schema is initialized in `storag
 PRAGMA foreign_keys = ON;
 ```
 
-The database stores users, refresh tokens, 2FA recovery codes, inventory items, locations, projects, stock mappings, and project allocations.
+The database stores users, refresh tokens, 2FA recovery codes, passkey credentials, passkey challenge state, activity log entries, inventory items, locations, projects, stock mappings, and project allocations.
 
 ## Entity Overview
 
 ```text
 [users] 1 ──── N [refresh_tokens]
 [users] 1 ──── N [two_factor_recovery_codes]
+[users] 1 ──── N [passkey_credentials]
+[users] 1 ──── N [activity_logs]
+
+[passkey_challenges] stores short-lived WebAuthn ceremony state
 
 [items] 1 ──── N [stock] N ──── 1 [locations]
 [items] 1 ──── N [project_items] N ──── 1 [projects]
@@ -65,6 +69,58 @@ Stores recovery-code hashes for 2FA fallback login.
 
 Recovery codes are deleted and replaced when the user regenerates them. A recovery code is consumed with an atomic update that only matches unused codes.
 
+### `passkey_credentials`
+
+Stores WebAuthn passkey credentials for account login. Private keys are not stored by MiauInv; they remain in the authenticator, platform passkey provider, browser, or security key.
+
+| Column | Type | Constraints | Description |
+| --- | --- | --- | --- |
+| `id` | `TEXT` | Primary key | Passkey row UUID. |
+| `user_id` | `TEXT` | Not null, foreign key to `users(id)` with `ON DELETE CASCADE` | Owning user. |
+| `credential_id` | `TEXT` | Not null, unique | Base64url-encoded WebAuthn credential ID. |
+| `name` | `TEXT` | Not null | User-visible passkey name. |
+| `credential_data` | `TEXT` | Not null | Serialized WebAuthn credential data, including public-key material and authenticator metadata. |
+| `created_at` | `INTEGER` | Not null | Unix timestamp for creation. |
+| `last_used_at` | `INTEGER` | Nullable | Unix timestamp when the passkey was last used successfully. |
+
+### `passkey_challenges`
+
+Stores short-lived server-side WebAuthn session data for registration and login ceremonies. The browser receives only an opaque `session_token`.
+
+| Column | Type | Constraints | Description |
+| --- | --- | --- | --- |
+| `token` | `TEXT` | Primary key | Opaque challenge token returned to the client. |
+| `user_id` | `TEXT` | Not null, default `''` | Owning user for registration challenges. Empty for discoverable login challenges. |
+| `ceremony` | `TEXT` | Not null | Challenge type, for example `register` or `login`. |
+| `session_data` | `TEXT` | Not null | Serialized WebAuthn session data. |
+| `expires_at` | `INTEGER` | Not null | Unix timestamp after which the challenge is rejected. |
+
+Challenge rows are consumed once during the finish step and expired rows are cleaned up opportunistically.
+
+
+### `activity_logs`
+
+Stores account, authentication, security, and inventory activity metadata. Request bodies, passwords, TOTP codes, recovery codes, passkey payloads, and token values are not stored.
+
+| Column | Type | Constraints | Description |
+| --- | --- | --- | --- |
+| `id` | `TEXT` | Primary key | Activity row UUID. |
+| `user_id` | `TEXT` | Not null, default `''` | User associated with the activity. Empty for unknown-user failed login attempts. |
+| `username` | `TEXT` | Not null, default `''` | Username known at the time of the event. |
+| `action` | `TEXT` | Not null | Normalized action name, for example `auth.login.succeeded` or `inventory.update`. |
+| `entity_type` | `TEXT` | Not null, default `''` | Logical entity, for example `auth`, `security`, `item`, `location`, or `project`. |
+| `entity_id` | `TEXT` | Not null, default `''` | Optional target ID when available. |
+| `details` | `TEXT` | Not null, default `''` | Short sanitized status summary. |
+| `method` | `TEXT` | Not null, default `''` | HTTP method. |
+| `path` | `TEXT` | Not null, default `''` | Request path without query parameters. |
+| `status_code` | `INTEGER` | Not null, default `0` | Final HTTP status code. |
+| `success` | `INTEGER` | Not null, default `0` | Boolean success flag derived from the status code. |
+| `ip_address` | `TEXT` | Not null, default `''` | Client IP address, considering common reverse-proxy headers. |
+| `user_agent` | `TEXT` | Not null, default `''` | User-Agent metadata. |
+| `created_at` | `INTEGER` | Not null | Unix timestamp for the event. |
+
+Indexes are created for per-user timeline lookups, global timestamp ordering, and action filtering. Non-admin users can only read their own activity through `/api/activity`. Admin users can request all activity with `?all=true`.
+
 ### `items`
 
 Stores tracked inventory items.
@@ -124,7 +180,7 @@ Maps item quantities to projects.
 
 Foreign keys are enabled per connection. Because most inventory foreign keys do not define explicit cascade behavior, SQLite blocks deletion of referenced items, locations, or projects while dependent rows exist.
 
-`two_factor_recovery_codes.user_id` uses `ON DELETE CASCADE`, so deleting a user also deletes their recovery-code rows.
+`two_factor_recovery_codes.user_id` and `passkey_credentials.user_id` use `ON DELETE CASCADE`, so deleting a user also deletes their recovery-code and passkey rows.
 
 ### Uniqueness
 
@@ -134,6 +190,7 @@ The following values are unique:
 - `locations.name`
 - `projects.name`
 - `two_factor_recovery_codes(user_id, code_hash)`
+- `passkey_credentials.credential_id`
 
 ### Current schema limitations
 
@@ -162,6 +219,36 @@ When the password is updated:
 3. Existing refresh tokens for that user are revoked.
 4. A new session is issued.
 
+### Passkey registration
+
+When a passkey is registered:
+
+1. The current password is verified.
+2. A WebAuthn registration challenge is stored in `passkey_challenges`.
+3. The finish step consumes the challenge.
+4. The WebAuthn credential is verified.
+5. A row is inserted into `passkey_credentials`.
+6. Existing refresh tokens for the user are revoked.
+7. A new session is issued for the current browser.
+
+### Passkey login
+
+When passkey login completes:
+
+1. A discoverable WebAuthn login challenge is consumed from `passkey_challenges`.
+2. The credential assertion is verified against the stored credential data.
+3. The stored credential data and `last_used_at` value are updated.
+4. A normal access/refresh session is issued.
+
+### Passkey removal
+
+When a passkey is removed or all passkeys are disabled:
+
+1. The current password is verified.
+2. The matching passkey row, or all rows for the user, are deleted.
+3. Existing refresh tokens for the user are revoked.
+4. A new session is issued for the current browser.
+
 ### 2FA enable
 
 When 2FA is enabled:

docs/ENDPOINTS.md

@@ -0,0 +1,91 @@
+# API Endpoints
+
+This document lists the public page routes and JSON API endpoints exposed by MiauInv. API endpoints that modify account or inventory state require authentication unless explicitly marked as public.
+
+## Page Routes
+
+| Route | Authentication | Purpose |
+| --- | --- | --- |
+| `/` | No | Landing page. |
+| `/login` | No | Login page with password and passkey login. |
+| `/register` | Optional | Registration page when registration is enabled. |
+| `/dashboard` | Yes | Dashboard overview. |
+| `/inventory` | Yes | Inventory item management. |
+| `/items` | Yes | Item list view. |
+| `/locations` | Yes | Location management. |
+| `/projects` | Yes | Project allocation management. |
+| `/profile/settings` | Yes | Account, 2FA, and passkey settings. |
+| `/profile/activity` | Yes | User activity log. |
+
+## Authentication and Account API
+
+| Endpoint | Method | Authentication | Purpose |
+| --- | --- | --- | --- |
+| `/api/register` | `POST` | No | Create a user when registration is enabled. |
+| `/api/login` | `POST` | No | Password login. Returns a 2FA challenge if required. |
+| `/api/login/2fa` | `POST` | No | Complete TOTP or recovery-code login. |
+| `/api/passkeys/login/options` | `POST` | No | Start discoverable passkey login. |
+| `/api/passkeys/login/finish` | `POST` | No | Complete passkey login. |
+| `/api/refresh` | `POST` | No | Rotate a refresh token and issue a new session. |
+| `/api/logout` | `POST` | Yes | Revoke refresh sessions and clear auth cookies. |
+| `/api/userinfo` | `GET` | Yes | Return current user metadata and security status. |
+| `/api/profile` | `GET` | Yes | Alias for current user metadata. |
+| `/api/account/username` | `POST` | Yes | Change username with password confirmation. |
+| `/api/account/password` | `POST` | Yes | Change password and refresh the current session. |
+
+## Two-Factor Authentication API
+
+| Endpoint | Method | Authentication | Purpose |
+| --- | --- | --- | --- |
+| `/api/2fa/setup` | `POST` | Yes | Create a short-lived setup challenge, QR code, and manual setup secret. |
+| `/api/2fa/enable` | `POST` | Yes | Confirm the setup challenge, enable 2FA, and generate recovery codes. |
+| `/api/2fa/disable` | `POST` | Yes | Disable 2FA with password and TOTP confirmation. |
+| `/api/2fa/recovery-codes/regenerate` | `POST` | Yes | Replace recovery codes with password and TOTP confirmation. |
+
+## Passkey Management API
+
+| Endpoint | Method | Authentication | Purpose |
+| --- | --- | --- | --- |
+| `/api/passkeys` | `GET` | Yes | List registered passkeys. |
+| `/api/passkeys` | `DELETE` | Yes | Remove a passkey with password confirmation. |
+| `/api/passkeys/register/options` | `POST` | Yes | Start passkey registration. |
+| `/api/passkeys/register/finish` | `POST` | Yes | Finish passkey registration and store the credential. |
+| `/api/passkeys/disable` | `POST` | Yes | Remove all passkeys with password confirmation. |
+
+## Activity API
+
+| Endpoint | Method | Authentication | Purpose |
+| --- | --- | --- | --- |
+| `/api/activity` | `GET` | Yes | Return recent activity entries for the current user. Admin users may request `?all=true`. |
+
+Query parameters:
+
+| Parameter | Default | Max | Purpose |
+| --- | --- | --- | --- |
+| `limit` | `50` | `100` | Number of entries to return. |
+| `offset` | `0` | `100000` | Offset for pagination. |
+| `all` | `false` | n/a | Admin-only flag for reading all users' activity. |
+
+## Inventory API
+
+| Endpoint | Method | Authentication | Purpose |
+| --- | --- | --- | --- |
+| `/api/item` | `GET` | Yes | List items or read an item by `id`. |
+| `/api/item` | `POST` | Yes | Create an item. |
+| `/api/item` | `PUT` | Yes | Update an item by `id`. |
+| `/api/item` | `DELETE` | Yes | Delete an item by `id`. |
+| `/api/location` | `GET` | Yes | List locations, read a location by `id`, or read location contents with `content=true`. |
+| `/api/location` | `POST` | Yes | Create a location. |
+| `/api/location` | `PUT` | Yes | Update a location by `id`. |
+| `/api/location` | `DELETE` | Yes | Delete a location by `id`. |
+| `/api/project` | `GET` | Yes | List projects, read a project by `id`, or read project allocation details with `details=true`. |
+| `/api/project` | `POST` | Yes | Create a project. |
+| `/api/project` | `PUT` | Yes | Update a project by `id`. |
+| `/api/project` | `DELETE` | Yes | Delete a project by `id`. |
+| `/api/stock` | `GET` | Yes | List stock rows, optionally filtered by `item_id`. |
+| `/api/stock` | `POST` | Yes | Add stock to a location. |
+| `/api/stock` | `DELETE` | Yes | Delete a stock row by `id`. |
+| `/api/association` | `GET` | Yes | List project-item allocations, optionally filtered by `project_id`. |
+| `/api/association` | `POST` | Yes | Allocate item quantity to a project. |
+| `/api/association` | `PUT` | Yes | Update an allocation by `id`. |
+| `/api/association` | `DELETE` | Yes | Delete an allocation by `id`. |

docs/SECURITY.md

@@ -1,10 +1,10 @@
-# Security Notes
+# Security
 
 This document summarizes the current security-relevant behavior of MiauInv. It is intended as implementation documentation, not as a guarantee that the application is production-ready for untrusted public deployments.
 
 ## Authentication
 
-MiauInv uses signed JWT access tokens, database-backed refresh tokens, and optional TOTP-based two-factor authentication.
+MiauInv uses signed JWT access tokens, database-backed refresh tokens, optional TOTP-based two-factor authentication, and optional WebAuthn passkeys.
 
 JWTs are signed with `JWT_SECRET`. They are not encrypted. Normal access tokens and purpose tokens should therefore contain only identity and authorization metadata.
 
@@ -66,9 +66,31 @@ Recovery codes are single-use. During login, a submitted value is first checked
 
 The account settings UI warns the user when the remaining unused recovery-code count is low.
 
+## Passkeys
+
+Passkeys use WebAuthn public-key credentials. The server stores credential metadata and public-key material, but not private keys. Private keys remain controlled by the authenticator, browser, operating system, or security key.
+
+Passkey registration requires the current account password. Registration uses a server-side challenge stored in `passkey_challenges` and returned to the browser only as an opaque challenge token. The browser response is verified before the credential is stored.
+
+Passkey login creates a one-time server-side challenge. The login flow uses discoverable passkeys and does not require entering a username first. User verification is required for passkey registration and login.
+
+Passkey login is treated as a complete phishing-resistant sign-in method. Because passkey registration and login require WebAuthn user verification, the server issues a normal session after a valid passkey assertion instead of asking for an additional TOTP code.
+
+When passkeys are added, removed, or disabled, existing refresh sessions are revoked and a fresh current session is issued.
+
+Passkey ceremonies require HTTPS except for localhost. Reverse proxy deployments must preserve the correct public `Host`, `X-Forwarded-Host`, and `X-Forwarded-Proto` information so that the relying party origin and ID match the browser-visible origin.
+
+## Activity Logging
+
+MiauInv stores an authenticated activity log for security-relevant and state-changing actions, including login attempts, refresh-token rotation, account changes, 2FA changes, passkey management, logout, and inventory mutations.
+
+The activity log intentionally stores metadata only: action name, entity type, optional target ID, HTTP method, path, status, success flag, IP address, user agent, and timestamp. Request bodies are not logged, so passwords, TOTP codes, recovery codes, refresh tokens, and WebAuthn payloads are not persisted in the activity table.
+
+Users can read their own entries from `/profile/activity` and `/api/activity`. Admin users may request all users' activity with `?all=true`. The API enforces authentication, bounds pagination limits, and is protected by rate limiting.
+
 ## Rate Limiting
 
-Basic in-memory rate limiting protects login, 2FA, refresh, registration, and sensitive account endpoints.
+Basic in-memory rate limiting protects login, passkey ceremonies, 2FA, refresh, registration, activity, and sensitive account endpoints.
 
 This is suitable for a single-instance private deployment. It is not sufficient for multi-instance deployments because limiter state is process-local. A public or multi-instance deployment should use persistent or distributed rate limiting at the application, reverse proxy, or infrastructure layer.
 
@@ -76,8 +98,7 @@ This is suitable for a single-instance private deployment. It is not sufficient
 
 - Automated testing is currently limited.
 - TOTP secrets are stored in the database after confirmation because the server must validate future codes.
+- Passkey credential metadata and public-key data are stored in the database after registration.
 - TOTP secrets are not encrypted at rest.
 - There is no dedicated session/device management UI yet.
-- There is no audit log for account security changes yet.
 - The current rate limiter is process-local and memory-only.
-- Passkeys/WebAuthn are intentionally not implemented yet.

frontend/assets/css/dashboard.css

@@ -291,6 +291,152 @@ tr:hover td {
     background: rgba(255, 255, 255, 0.02);
 }
 
+
+.activity-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: flex-start;
+    gap: 1rem;
+    flex-wrap: wrap;
+}
+
+.activity-header h1 {
+    margin-bottom: 0.5rem;
+}
+
+.activity-header p {
+    color: var(--text-muted);
+    margin: 0;
+}
+
+.activity-refresh,
+.activity-load-more {
+    width: auto;
+    padding: 0.6rem 1.2rem;
+}
+
+.activity-controls-card {
+    max-width: 100%;
+    text-align: left;
+    padding: 1.35rem;
+    margin-bottom: 1.5rem;
+    display: grid;
+    grid-template-columns: minmax(260px, 1fr) minmax(260px, 1.25fr);
+    gap: 1rem;
+    align-items: stretch;
+}
+
+.activity-control-panel {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    gap: 1rem;
+    background: rgba(17, 24, 39, 0.62);
+    border: 1px solid var(--border);
+    border-radius: 14px;
+    padding: 1rem;
+}
+
+.activity-control-copy h2 {
+    color: var(--text);
+    font-size: 1rem;
+    margin: 0.1rem 0 0.25rem;
+}
+
+.activity-control-copy p,
+.activity-note {
+    color: var(--text-muted);
+    margin: 0;
+    font-size: 0.92rem;
+}
+
+.activity-eyebrow {
+    color: var(--accent);
+    font-size: 0.75rem;
+    font-weight: 800;
+    letter-spacing: 0.08em;
+    text-transform: uppercase;
+}
+
+.activity-entry-menu {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.35rem;
+    padding: 0.35rem;
+    background: #0f172a;
+    border: 1px solid var(--border);
+    border-radius: 999px;
+    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
+}
+
+.activity-entry-option {
+    min-width: 3.2rem;
+    border: 0;
+    border-radius: 999px;
+    padding: 0.55rem 0.85rem;
+    background: transparent;
+    color: var(--text-muted);
+    cursor: pointer;
+    font-weight: 800;
+    transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
+}
+
+.activity-entry-option:hover,
+.activity-entry-option:focus-visible {
+    color: var(--text);
+    outline: none;
+    background: rgba(255, 255, 255, 0.05);
+}
+
+.activity-entry-option.active {
+    color: #ffffff;
+    background: var(--accent);
+    box-shadow: 0 8px 18px rgba(59, 130, 246, 0.28);
+}
+
+.activity-note {
+    display: flex;
+    align-items: center;
+    border: 1px solid rgba(59, 130, 246, 0.22);
+    border-radius: 14px;
+    padding: 1rem;
+    background: rgba(59, 130, 246, 0.08);
+}
+
+.activity-note strong {
+    color: #bfdbfe;
+    margin-right: 0.35rem;
+}
+
+.activity-load-more-wrap {
+    display: flex;
+    justify-content: center;
+    margin-top: 1.5rem;
+}
+
+#activity-load-more {
+    display: none;
+}
+
+@media (max-width: 860px) {
+    .activity-controls-card {
+        grid-template-columns: 1fr;
+    }
+
+    .activity-control-panel {
+        align-items: flex-start;
+        flex-direction: column;
+    }
+
+    .activity-entry-menu {
+        width: 100%;
+    }
+
+    .activity-entry-option {
+        flex: 1;
+    }
+}
+
 #modal {
     position: fixed;
     z-index: 100;

frontend/assets/css/theme.css

@@ -130,6 +130,51 @@ input::placeholder {
     color: #4b5563;
 }
 
+
+.password-input-wrapper {
+    position: relative;
+    width: 100%;
+}
+
+.password-input-wrapper input {
+    padding-right: 3rem;
+}
+
+.password-toggle {
+    position: absolute;
+    top: 50%;
+    right: 0.45rem;
+    width: 2.25rem;
+    height: 2.25rem;
+    transform: translateY(-50%);
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    color: var(--text-muted);
+    background: transparent;
+    border: 1px solid transparent;
+    border-radius: 8px;
+    cursor: pointer;
+    transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
+}
+
+.password-toggle:hover {
+    color: var(--text);
+    background: rgba(255, 255, 255, 0.06);
+}
+
+.password-toggle:focus-visible {
+    outline: none;
+    border-color: var(--accent);
+    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
+}
+
+.password-toggle svg {
+    width: 1.15rem;
+    height: 1.15rem;
+    pointer-events: none;
+}
+
 .footer-text {
     margin-top: 1.5rem;
     font-size: 0.9rem;

frontend/assets/js/api.js

@@ -40,7 +40,9 @@ document.addEventListener("DOMContentLoaded", () => {
     if (document.getElementById('locations-table-body')) loadLocations();
     if (document.getElementById('projects-table-body')) loadProjects();
     if (document.getElementById('account-settings-content')) loadAccountSettings();
+    if (document.getElementById('activity-log-body')) loadActivityLog(true);
 
+    setupPasswordVisibilityToggles();
     loadProfile();
 });
 
@@ -487,6 +489,7 @@ async function loadProfile() {
 // ---- ACCOUNT SETTINGS ----
 let latestRecoveryCodes = [];
 let pendingTwoFactorSetupToken = "";
+let currentPasskeys = [];
 
 function showAccountSettingsMessage(message, type = 'success') {
     const box = document.getElementById('account-settings-message');
@@ -496,6 +499,51 @@ function showAccountSettingsMessage(message, type = 'success') {
     box.style.display = 'block';
 }
 
+function setupPasswordVisibilityToggles(root = document) {
+    const eyeIcon = `
+        <svg viewBox="0 0 24 24" aria-hidden="true" focusable="false">
+            <path d="M2.25 12s3.5-6.75 9.75-6.75S21.75 12 21.75 12 18.25 18.75 12 18.75 2.25 12 2.25 12Z" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+            <circle cx="12" cy="12" r="2.75" fill="none" stroke="currentColor" stroke-width="1.8"/>
+        </svg>`;
+    const eyeOffIcon = `
+        <svg viewBox="0 0 24 24" aria-hidden="true" focusable="false">
+            <path d="M3 3l18 18" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round"/>
+            <path d="M10.58 10.58A2.75 2.75 0 0 0 13.42 13.42" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round"/>
+            <path d="M7.1 7.7C3.95 9.55 2.25 12 2.25 12s3.5 6.75 9.75 6.75c1.65 0 3.08-.47 4.29-1.15" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+            <path d="M9.8 5.55A9.2 9.2 0 0 1 12 5.25c6.25 0 9.75 6.75 9.75 6.75a15.3 15.3 0 0 1-2.3 2.95" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+        </svg>`;
+
+    root.querySelectorAll('input[type="password"]').forEach((input) => {
+        if (input.dataset.visibilityToggleAttached === 'true') return;
+        input.dataset.visibilityToggleAttached = 'true';
+
+        let wrapper = input.closest('.password-input-wrapper');
+        if (!wrapper) {
+            wrapper = document.createElement('div');
+            wrapper.className = 'password-input-wrapper';
+            input.parentNode.insertBefore(wrapper, input);
+            wrapper.appendChild(input);
+        }
+
+        const toggle = document.createElement('button');
+        toggle.type = 'button';
+        toggle.className = 'password-toggle';
+        toggle.innerHTML = eyeIcon;
+        toggle.setAttribute('aria-label', `Show ${input.placeholder || 'password'}`);
+        toggle.setAttribute('title', 'Show password');
+
+        toggle.addEventListener('click', () => {
+            const show = input.type === 'password';
+            input.type = show ? 'text' : 'password';
+            toggle.innerHTML = show ? eyeOffIcon : eyeIcon;
+            toggle.setAttribute('aria-label', `${show ? 'Hide' : 'Show'} ${input.placeholder || 'password'}`);
+            toggle.setAttribute('title', show ? 'Hide password' : 'Show password');
+        });
+
+        wrapper.appendChild(toggle);
+    });
+}
+
 function setTwoFactorPanels(enabled) {
     const badge = document.getElementById('two-factor-badge');
     const status = document.getElementById('two-factor-status');
@@ -552,16 +600,17 @@ async function loadAccountSettings() {
         const data = await apiRequest('/api/profile');
 
         const usernameInput = document.getElementById('settings-username');
-        const avatarPreview = document.getElementById('settings-avatar-preview');
         const remaining = document.getElementById('recovery-codes-remaining');
 
         if (usernameInput) usernameInput.value = data.username || '';
-        if (avatarPreview && data.username) avatarPreview.innerText = data.username[0].toLocaleUpperCase();
         if (remaining) remaining.innerText = data.recovery_codes_remaining || 0;
         updateRecoveryCodeWarning(data.recovery_codes_remaining || 0, !!data.recovery_codes_warning);
 
         setTwoFactorPanels(!!data.two_factor_enabled);
+        setPasskeyPanels(!!data.passkeys_enabled, data.passkey_count || 0);
         renderRecoveryCodes([]);
+        loadPasskeys();
+        setupPasswordVisibilityToggles(document.getElementById('account-settings-content') || document);
     } catch (err) {
         showAccountSettingsMessage(err.message || 'Failed to load account settings.', 'error');
     }
@@ -581,10 +630,8 @@ async function saveAccountUsername(event) {
 
         const username = document.getElementById('username');
         const avatar = document.getElementById('avatar');
-        const avatarPreview = document.getElementById('settings-avatar-preview');
         if (username) username.innerText = data.username;
         if (avatar && data.username) avatar.innerText = data.username[0].toLocaleUpperCase();
-        if (avatarPreview && data.username) avatarPreview.innerText = data.username[0].toLocaleUpperCase();
     } catch (err) {
         showAccountSettingsMessage(err.message || 'Could not update username.', 'error');
     }
@@ -681,8 +728,6 @@ async function enableTwoFactor(event) {
 async function disableTwoFactor(event) {
     event.preventDefault();
 
-    if (!confirm('Disable 2FA for your account?')) return;
-
     try {
         await apiRequest('/api/2fa/disable', 'POST', {
             password: document.getElementById('two-factor-disable-password').value,
@@ -707,8 +752,6 @@ async function disableTwoFactor(event) {
 async function regenerateRecoveryCodes(event) {
     event.preventDefault();
 
-    if (!confirm('Generate new recovery codes? Existing unused codes will stop working.')) return;
-
     try {
         const data = await apiRequest('/api/2fa/recovery-codes/regenerate', 'POST', {
             password: document.getElementById('recovery-password').value,
@@ -752,3 +795,340 @@ function downloadRecoveryCodes() {
     link.remove();
     URL.revokeObjectURL(url);
 }
+
+function webauthnSupported() {
+    return window.PublicKeyCredential && navigator.credentials;
+}
+
+function webauthnBase64URLToBuffer(value) {
+    const base64 = value.replace(/-/g, "+").replace(/_/g, "/");
+    const padded = base64.padEnd(base64.length + (4 - base64.length % 4) % 4, "=");
+    const binary = atob(padded);
+    const bytes = new Uint8Array(binary.length);
+    for (let i = 0; i < binary.length; i++) {
+        bytes[i] = binary.charCodeAt(i);
+    }
+    return bytes.buffer;
+}
+
+function webauthnBufferToBase64URL(buffer) {
+    const bytes = new Uint8Array(buffer);
+    let binary = "";
+    for (const byte of bytes) {
+        binary += String.fromCharCode(byte);
+    }
+    return btoa(binary).replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/g, "");
+}
+
+function prepareCredentialCreationOptions(options) {
+    const publicKey = options.publicKey || options;
+    publicKey.challenge = webauthnBase64URLToBuffer(publicKey.challenge);
+    publicKey.user.id = webauthnBase64URLToBuffer(publicKey.user.id);
+    if (Array.isArray(publicKey.excludeCredentials)) {
+        publicKey.excludeCredentials = publicKey.excludeCredentials.map((credential) => ({
+            ...credential,
+            id: webauthnBase64URLToBuffer(credential.id)
+        }));
+    }
+    return publicKey;
+}
+
+function attestationCredentialToJSON(credential) {
+    const response = credential.response;
+    return {
+        id: credential.id,
+        rawId: webauthnBufferToBase64URL(credential.rawId),
+        type: credential.type,
+        response: {
+            clientDataJSON: webauthnBufferToBase64URL(response.clientDataJSON),
+            attestationObject: webauthnBufferToBase64URL(response.attestationObject),
+            transports: typeof response.getTransports === 'function' ? response.getTransports() : []
+        },
+        clientExtensionResults: credential.getClientExtensionResults()
+    };
+}
+
+function setPasskeyPanels(enabled, count) {
+    const badge = document.getElementById('passkey-badge');
+    const status = document.getElementById('passkey-status');
+    const unsupported = document.getElementById('passkey-unsupported-message');
+    const addForm = document.getElementById('passkey-add-form');
+
+    if (unsupported) unsupported.style.display = webauthnSupported() ? 'none' : 'block';
+    if (addForm) {
+        for (const element of addForm.elements) {
+            element.disabled = !webauthnSupported();
+        }
+    }
+    if (!badge || !status) return;
+
+    if (enabled) {
+        badge.textContent = 'Enabled';
+        badge.classList.add('success');
+        status.textContent = `${count} passkey${count === 1 ? '' : 's'} registered for this account.`;
+    } else {
+        badge.textContent = 'Disabled';
+        badge.classList.remove('success');
+        status.textContent = 'No passkeys are registered for this account.';
+    }
+}
+
+function renderPasskeys(passkeys) {
+    currentPasskeys = passkeys || [];
+    const list = document.getElementById('passkey-list');
+    if (!list) return;
+
+    if (currentPasskeys.length === 0) {
+        list.innerHTML = '<p style="color: var(--text-muted); margin: 0;">No passkeys registered.</p>';
+        return;
+    }
+
+    list.innerHTML = currentPasskeys.map((passkey) => {
+        const created = passkey.created_at ? new Date(passkey.created_at * 1000).toLocaleString() : 'unknown';
+        const lastUsed = passkey.last_used_at ? new Date(passkey.last_used_at * 1000).toLocaleString() : 'never';
+        const id = escapeAttr(passkey.id);
+        return `
+            <div style="border: 1px solid var(--border); border-radius: 12px; padding: 1rem; display: grid; gap: 0.75rem;">
+                <div style="display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; flex-wrap: wrap;">
+                    <div>
+                        <strong style="color: var(--text);">${escapeHTML(passkey.name || 'Passkey')}</strong>
+                        <div style="color: var(--text-muted); font-size: 0.85rem; margin-top: 0.25rem;">Created: ${escapeHTML(created)}</div>
+                        <div style="color: var(--text-muted); font-size: 0.85rem; margin-top: 0.25rem;">Last used: ${escapeHTML(lastUsed)}</div>
+                    </div>
+                    <button type="button" class="btn btn-secondary danger-btn" style="width: auto; padding: 0.45rem 0.8rem;" onclick="showPasskeyDeleteForm('${id}')">Remove</button>
+                </div>
+                <div id="passkey-delete-form-${id}" style="display: none; border-top: 1px solid var(--border); padding-top: 0.75rem;">
+                    <p style="color: var(--text-muted); margin-bottom: 0.75rem;">Confirm with your current password to remove this passkey.</p>
+                    <div class="form-group" style="margin-bottom: 0.75rem;">
+                        <input type="password" id="passkey-delete-password-${id}" placeholder="Current password" autocomplete="current-password">
+                    </div>
+                    <div style="display: flex; gap: 0.75rem; flex-wrap: wrap;">
+                        <button type="button" class="btn btn-secondary danger-btn" style="width: auto; padding: 0.45rem 0.8rem;" onclick="confirmDeletePasskey('${id}')">Confirm removal</button>
+                        <button type="button" class="btn btn-secondary" style="width: auto; padding: 0.45rem 0.8rem;" onclick="hidePasskeyDeleteForm('${id}')">Cancel</button>
+                    </div>
+                </div>
+            </div>
+        `;
+    }).join('');
+
+    setupPasswordVisibilityToggles(list);
+}
+
+async function loadPasskeys() {
+    if (!document.getElementById('passkey-list')) return;
+    try {
+        const data = await apiRequest('/api/passkeys');
+        renderPasskeys(data.passkeys || []);
+        setPasskeyPanels(!!data.passkeys_enabled, data.passkey_count || 0);
+    } catch (err) {
+        showAccountSettingsMessage(err.message || 'Could not load passkeys.', 'error');
+    }
+}
+
+async function addPasskey(event) {
+    event.preventDefault();
+
+    if (!webauthnSupported()) {
+        showAccountSettingsMessage('Passkeys are not supported by this browser.', 'error');
+        return;
+    }
+
+    const name = document.getElementById('passkey-name').value.trim() || 'Passkey';
+    const password = document.getElementById('passkey-add-password').value;
+
+    try {
+        const optionsData = await apiRequest('/api/passkeys/register/options', 'POST', { name, password });
+        const publicKey = prepareCredentialCreationOptions(optionsData.options);
+        const credential = await navigator.credentials.create({ publicKey });
+        if (!credential) {
+            throw new Error('Passkey creation was cancelled.');
+        }
+
+        const data = await apiRequest('/api/passkeys/register/finish', 'POST', {
+            session_token: optionsData.session_token,
+            name,
+            credential: attestationCredentialToJSON(credential)
+        });
+
+        if (data.access_token && data.refresh_token) {
+            localStorage.setItem('access_token', data.access_token);
+            localStorage.setItem('refresh_token', data.refresh_token);
+        }
+
+        document.getElementById('passkey-add-form').reset();
+        renderPasskeys(data.passkeys || []);
+        setPasskeyPanels(!!data.passkeys_enabled, data.passkey_count || 0);
+        showAccountSettingsMessage('Passkey added. Your session was refreshed.');
+    } catch (err) {
+        showAccountSettingsMessage(err.message || 'Could not add passkey.', 'error');
+    }
+}
+
+function showPasskeyDeleteForm(id) {
+    const form = document.getElementById(`passkey-delete-form-${id}`);
+    const input = document.getElementById(`passkey-delete-password-${id}`);
+    if (!form) return;
+    form.style.display = 'block';
+    setupPasswordVisibilityToggles(form);
+    if (input) input.focus();
+}
+
+function hidePasskeyDeleteForm(id) {
+    const form = document.getElementById(`passkey-delete-form-${id}`);
+    const input = document.getElementById(`passkey-delete-password-${id}`);
+    if (input) input.value = '';
+    if (form) form.style.display = 'none';
+}
+
+async function confirmDeletePasskey(id) {
+    if (!id) return;
+    const input = document.getElementById(`passkey-delete-password-${id}`);
+    const password = input ? input.value : '';
+    if (!password) {
+        showAccountSettingsMessage('Current password required to remove passkey.', 'error');
+        return;
+    }
+
+    try {
+        const data = await apiRequest('/api/passkeys', 'DELETE', { id, password });
+        if (data.access_token && data.refresh_token) {
+            localStorage.setItem('access_token', data.access_token);
+            localStorage.setItem('refresh_token', data.refresh_token);
+        }
+        renderPasskeys(data.passkeys || []);
+        setPasskeyPanels(!!data.passkeys_enabled, data.passkey_count || 0);
+        showAccountSettingsMessage('Passkey removed. Your session was refreshed.');
+    } catch (err) {
+        showAccountSettingsMessage(err.message || 'Could not remove passkey.', 'error');
+    }
+}
+
+async function deletePasskey(id) {
+    showPasskeyDeleteForm(id);
+}
+
+async function disablePasskeys(event) {
+    event.preventDefault();
+
+    try {
+        const data = await apiRequest('/api/passkeys/disable', 'POST', {
+            password: document.getElementById('passkey-disable-password').value
+        });
+        if (data.access_token && data.refresh_token) {
+            localStorage.setItem('access_token', data.access_token);
+            localStorage.setItem('refresh_token', data.refresh_token);
+        }
+        document.getElementById('passkey-disable-form').reset();
+        renderPasskeys([]);
+        setPasskeyPanels(false, 0);
+        showAccountSettingsMessage('Passkeys disabled. Your session was refreshed.');
+    } catch (err) {
+        showAccountSettingsMessage(err.message || 'Could not disable passkeys.', 'error');
+    }
+}
+
+
+// ---- ACTIVITY LOG ----
+let activityOffset = 0;
+let activityLimit = 50;
+
+async function loadActivityLog(reset = true) {
+    const tbody = document.getElementById('activity-log-body');
+    if (!tbody) return;
+
+    activityLimit = getSelectedActivityLimit();
+    if (reset) {
+        activityOffset = 0;
+        tbody.innerHTML = '<tr><td colspan="6" class="table-loader">Loading activity...</td></tr>';
+    }
+
+    try {
+        const data = await apiRequest(`/api/activity?limit=${activityLimit}&offset=${activityOffset}`);
+        const entries = data.activity || [];
+
+        if (reset) tbody.innerHTML = '';
+        if (entries.length === 0 && activityOffset === 0) {
+            tbody.innerHTML = '<tr><td colspan="6" class="table-loader">No activity recorded yet.</td></tr>';
+        } else {
+            tbody.insertAdjacentHTML('beforeend', entries.map(renderActivityEntry).join(''));
+        }
+
+        activityOffset += entries.length;
+        const loadMore = document.getElementById('activity-load-more');
+        if (loadMore) loadMore.style.display = entries.length === activityLimit ? 'inline-flex' : 'none';
+    } catch (err) {
+        tbody.innerHTML = `<tr><td colspan="6" class="table-loader" style="color:#fca5a5;">${escapeHTML(err.message || 'Failed to load activity log.')}</td></tr>`;
+    }
+}
+
+function getSelectedActivityLimit() {
+    const activeButton = document.querySelector('.activity-entry-option.active');
+    if (!activeButton) return activityLimit || 50;
+    return parseInt(activeButton.dataset.limit, 10) || 50;
+}
+
+function setActivityLimit(limit) {
+    activityLimit = limit;
+    document.querySelectorAll('.activity-entry-option').forEach((button) => {
+        const isActive = parseInt(button.dataset.limit, 10) === limit;
+        button.classList.toggle('active', isActive);
+        button.setAttribute('aria-pressed', isActive ? 'true' : 'false');
+    });
+    loadActivityLog(true);
+}
+
+function loadMoreActivity() {
+    loadActivityLog(false);
+}
+
+function renderActivityEntry(entry) {
+    const timestamp = entry.created_at ? new Date(entry.created_at * 1000).toLocaleString() : 'unknown';
+    const statusClass = entry.success ? 'badge success' : 'badge';
+    const statusLabel = entry.success ? 'Success' : 'Failed';
+    const entity = [entry.entity_type, entry.entity_id ? `#${entry.entity_id}` : ''].filter(Boolean).join(' ') || 'account';
+    const client = entry.user_agent ? summarizeUserAgent(entry.user_agent) : 'unknown';
+    const path = entry.path ? `<div style="color:var(--text-muted); font-size:0.8rem; margin-top:0.2rem;">${escapeHTML(entry.method || '')} ${escapeHTML(entry.path)}</div>` : '';
+
+    return `
+        <tr>
+            <td style="white-space:nowrap; color:var(--text-muted);">${escapeHTML(timestamp)}</td>
+            <td>
+                <div style="font-weight:600; color:var(--text);">${escapeHTML(formatActivityAction(entry.action))}</div>
+                ${path}
+            </td>
+            <td>${escapeHTML(entity)}</td>
+            <td><span class="${statusClass}">${statusLabel} ${entry.status_code || ''}</span></td>
+            <td style="font-family:monospace; font-size:0.85rem;">${escapeHTML(entry.ip_address || 'unknown')}</td>
+            <td title="${escapeAttr(entry.user_agent || '')}" style="max-width:260px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:var(--text-muted);">${escapeHTML(client)}</td>
+        </tr>
+    `;
+}
+
+function formatActivityAction(action) {
+    if (!action) return 'Unknown action';
+    return action
+        .replace(/^auth\./, 'Auth: ')
+        .replace(/^account\./, 'Account: ')
+        .replace(/^security\./, 'Security: ')
+        .replace(/^inventory\./, 'Inventory: ')
+        .replace(/[._]/g, ' ')
+        .replace(/\b\w/g, (char) => char.toUpperCase());
+}
+
+function summarizeUserAgent(userAgent) {
+    if (userAgent.length <= 80) return userAgent;
+    return `${userAgent.slice(0, 77)}...`;
+}
+
+function escapeHTML(value) {
+    return String(value)
+        .replace(/&/g, '&amp;')
+        .replace(/</g, '&lt;')
+        .replace(/>/g, '&gt;')
+        .replace(/"/g, '&quot;')
+        .replace(/'/g, '&#39;');
+}
+
+function escapeAttr(value) {
+    return escapeHTML(value).replace(/`/g, '&#96;');
+}

frontend/assets/js/login.js

@@ -7,16 +7,70 @@ document.addEventListener("DOMContentLoaded", () => {
     const twoFactorInput = document.getElementById("two-factor-code");
     const twoFactorGroup = document.getElementById("two-factor-group");
     const submitButton = document.getElementById("login-submit");
+    const passkeyLoginButton = document.getElementById("passkey-login-button");
+    const passkeyLoginHint = document.getElementById("passkey-login-hint");
 
     let pendingTwoFactorToken = null;
 
     if (!form) return;
 
+    setupPasswordVisibilityToggles();
+
     function showError(message) {
         errorBox.textContent = message || "Login failed.";
         errorBox.style.display = "block";
     }
 
+    function clearError() {
+        errorBox.textContent = "";
+        errorBox.style.display = "none";
+    }
+
+    function setupPasswordVisibilityToggles(root = document) {
+        const eyeIcon = `
+            <svg viewBox="0 0 24 24" aria-hidden="true" focusable="false">
+                <path d="M2.25 12s3.5-6.75 9.75-6.75S21.75 12 21.75 12 18.25 18.75 12 18.75 2.25 12 2.25 12Z" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+                <circle cx="12" cy="12" r="2.75" fill="none" stroke="currentColor" stroke-width="1.8"/>
+            </svg>`;
+        const eyeOffIcon = `
+            <svg viewBox="0 0 24 24" aria-hidden="true" focusable="false">
+                <path d="M3 3l18 18" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round"/>
+                <path d="M10.58 10.58A2.75 2.75 0 0 0 13.42 13.42" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round"/>
+                <path d="M7.1 7.7C3.95 9.55 2.25 12 2.25 12s3.5 6.75 9.75 6.75c1.65 0 3.08-.47 4.29-1.15" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+                <path d="M9.8 5.55A9.2 9.2 0 0 1 12 5.25c6.25 0 9.75 6.75 9.75 6.75a15.3 15.3 0 0 1-2.3 2.95" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round"/>
+            </svg>`;
+
+        root.querySelectorAll('input[type="password"]').forEach((input) => {
+            if (input.dataset.visibilityToggleAttached === 'true') return;
+            input.dataset.visibilityToggleAttached = 'true';
+
+            let wrapper = input.closest('.password-input-wrapper');
+            if (!wrapper) {
+                wrapper = document.createElement('div');
+                wrapper.className = 'password-input-wrapper';
+                input.parentNode.insertBefore(wrapper, input);
+                wrapper.appendChild(input);
+            }
+
+            const toggle = document.createElement('button');
+            toggle.type = 'button';
+            toggle.className = 'password-toggle';
+            toggle.innerHTML = eyeIcon;
+            toggle.setAttribute('aria-label', `Show ${input.placeholder || 'password'}`);
+            toggle.setAttribute('title', 'Show password');
+
+            toggle.addEventListener('click', () => {
+                const show = input.type === 'password';
+                input.type = show ? 'text' : 'password';
+                toggle.innerHTML = show ? eyeOffIcon : eyeIcon;
+                toggle.setAttribute('aria-label', `${show ? 'Hide' : 'Show'} ${input.placeholder || 'password'}`);
+                toggle.setAttribute('title', show ? 'Hide password' : 'Show password');
+            });
+
+            wrapper.appendChild(toggle);
+        });
+    }
+
     function storeTokens(data) {
         localStorage.setItem("access_token", data.access_token);
         localStorage.setItem("refresh_token", data.refresh_token);
@@ -26,15 +80,131 @@ document.addEventListener("DOMContentLoaded", () => {
         pendingTwoFactorToken = token;
         usernameInput.disabled = true;
         passwordInput.disabled = true;
+        if (passkeyLoginButton) passkeyLoginButton.disabled = true;
         twoFactorGroup.style.display = "block";
         twoFactorInput.required = true;
         twoFactorInput.focus();
         submitButton.textContent = "Verify code";
     }
 
+    function webauthnSupported() {
+        return window.PublicKeyCredential && navigator.credentials;
+    }
+
+    function base64URLToBuffer(value) {
+        const base64 = value.replace(/-/g, "+").replace(/_/g, "/");
+        const padded = base64.padEnd(base64.length + (4 - base64.length % 4) % 4, "=");
+        const binary = atob(padded);
+        const bytes = new Uint8Array(binary.length);
+        for (let i = 0; i < binary.length; i++) {
+            bytes[i] = binary.charCodeAt(i);
+        }
+        return bytes.buffer;
+    }
+
+    function bufferToBase64URL(buffer) {
+        const bytes = new Uint8Array(buffer);
+        let binary = "";
+        for (const byte of bytes) {
+            binary += String.fromCharCode(byte);
+        }
+        return btoa(binary).replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/g, "");
+    }
+
+    function prepareCredentialRequestOptions(options) {
+        const publicKey = options.publicKey || options;
+        publicKey.challenge = base64URLToBuffer(publicKey.challenge);
+        if (Array.isArray(publicKey.allowCredentials)) {
+            publicKey.allowCredentials = publicKey.allowCredentials.map((credential) => ({
+                ...credential,
+                id: base64URLToBuffer(credential.id)
+            }));
+        }
+        return publicKey;
+    }
+
+    function credentialToJSON(credential) {
+        const response = credential.response;
+        return {
+            id: credential.id,
+            rawId: bufferToBase64URL(credential.rawId),
+            type: credential.type,
+            response: {
+                clientDataJSON: bufferToBase64URL(response.clientDataJSON),
+                authenticatorData: bufferToBase64URL(response.authenticatorData),
+                signature: bufferToBase64URL(response.signature),
+                userHandle: response.userHandle ? bufferToBase64URL(response.userHandle) : null
+            },
+            clientExtensionResults: credential.getClientExtensionResults()
+        };
+    }
+
+    async function handlePasskeyLogin() {
+        if (!webauthnSupported()) {
+            showError("Passkeys are not supported by this browser.");
+            return;
+        }
+
+        clearError();
+        if (passkeyLoginButton) passkeyLoginButton.disabled = true;
+        submitButton.disabled = true;
+
+        try {
+            const optionsResponse = await fetch("/api/passkeys/login/options", {
+                method: "POST",
+                headers: { "Content-Type": "application/json" },
+                body: JSON.stringify({})
+            });
+            if (!optionsResponse.ok) {
+                throw new Error(await optionsResponse.text());
+            }
+            const optionsData = await optionsResponse.json();
+            const publicKey = prepareCredentialRequestOptions(optionsData.options);
+            const assertion = await navigator.credentials.get({ publicKey });
+            if (!assertion) {
+                throw new Error("Passkey authentication was cancelled.");
+            }
+
+            const finishResponse = await fetch("/api/passkeys/login/finish", {
+                method: "POST",
+                headers: { "Content-Type": "application/json" },
+                body: JSON.stringify({
+                    session_token: optionsData.session_token,
+                    credential: credentialToJSON(assertion)
+                })
+            });
+            if (!finishResponse.ok) {
+                throw new Error(await finishResponse.text());
+            }
+            const data = await finishResponse.json();
+
+            if (data.requires_2fa) {
+                switchToTwoFactorMode(data.two_factor_token);
+                return;
+            }
+
+            storeTokens(data);
+            window.location.href = "/dashboard";
+        } catch (err) {
+            showError(err.message);
+        } finally {
+            if (!pendingTwoFactorToken && passkeyLoginButton) passkeyLoginButton.disabled = false;
+            submitButton.disabled = false;
+        }
+    }
+
+    if (passkeyLoginButton) {
+        if (!webauthnSupported()) {
+            passkeyLoginButton.disabled = true;
+            if (passkeyLoginHint) passkeyLoginHint.textContent = "Passkeys are not supported by this browser.";
+        } else {
+            passkeyLoginButton.addEventListener("click", handlePasskeyLogin);
+        }
+    }
+
     form.addEventListener("submit", async (e) => {
         e.preventDefault();
-        errorBox.style.display = "none";
+        clearError();
         submitButton.disabled = true;
 
         try {

frontend/handler.go

@@ -37,6 +37,10 @@ var accountSettings = template.Must(template.ParseFiles(
 	"frontend/htmx/contents/dash/base.html",
 	"frontend/htmx/contents/dash/account_settings.html"))
 
+var activity = template.Must(template.ParseFiles(
+	"frontend/htmx/contents/dash/base.html",
+	"frontend/htmx/contents/dash/activity.html"))
+
 var home = template.Must(template.ParseFiles("frontend/htmx/home.html"))
 
 func Home(w http.ResponseWriter, r *http.Request) {
@@ -156,6 +160,17 @@ func AccountSettings(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 }
+func Activity(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "text/html")
+	err := activity.ExecuteTemplate(w, "base.html", struct {
+		Title string
+	}{
+		Title: "Activity Log",
+	})
+	if err != nil {
+		return
+	}
+}
 
 var minifier *minify.M
 

frontend/htmx/contents/dash/account_settings.html

@@ -9,7 +9,7 @@
     <div class="modal-split" style="align-items: start;">
         <div class="card" style="max-width: 100%; text-align: left; padding: 1.5rem;">
             <h2 style="font-size: 1.25rem; margin-bottom: 0.5rem; color: var(--text);">Profile</h2>
-            <p style="color: var(--text-muted); margin-bottom: 1.5rem;">Change your username. Avatar upload is planned for later.</p>
+            <p style="color: var(--text-muted); margin-bottom: 1.5rem;">Change your username.</p>
 
             <form id="username-form" onsubmit="saveAccountUsername(event)">
                 <div class="form-group">
@@ -22,17 +22,6 @@
                 </div>
                 <button type="submit" class="btn btn-primary">Save username</button>
             </form>
-
-            <div style="margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--border);">
-                <h3 style="font-size: 1rem; margin-bottom: 0.75rem; color: var(--text);">Avatar</h3>
-                <div style="display:flex; align-items:center; gap:1rem; color: var(--text-muted);">
-                    <div id="settings-avatar-preview" class="avatar">M</div>
-                    <div>
-                        <div>Avatar upload is not implemented yet.</div>
-                        <div style="font-size:0.85rem; margin-top:0.25rem;">This placeholder keeps the settings layout ready for it.</div>
-                    </div>
-                </div>
-            </div>
         </div>
 
         <div class="card" style="max-width: 100%; text-align: left; padding: 1.5rem;">
@@ -136,5 +125,48 @@
             </div>
         </div>
     </div>
+
+    <div class="card" style="max-width: 100%; text-align: left; padding: 1.5rem; margin-top: 1.5rem;">
+        <div style="display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; flex-wrap: wrap;">
+            <div>
+                <h2 style="font-size: 1.25rem; margin-bottom: 0.5rem; color: var(--text);">Passkeys</h2>
+                <p id="passkey-status" style="color: var(--text-muted); margin-bottom: 1rem;">Loading passkey status...</p>
+            </div>
+            <span id="passkey-badge" class="badge">Unknown</span>
+        </div>
+
+        <p style="color: var(--text-muted); margin-bottom: 1rem;">Use device-bound or synced passkeys for phishing-resistant sign-in. Passkeys are protected by your browser, operating system, or security key.</p>
+
+        <div id="passkey-unsupported-message" class="message error" style="display: none; margin-bottom: 1rem;">This browser does not support passkeys.</div>
+
+        <div id="passkey-list" style="display: grid; gap: 0.75rem; margin-bottom: 1.5rem;"></div>
+
+        <div class="modal-split" style="align-items: start;">
+            <div>
+                <h3 style="font-size: 1rem; margin-bottom: 0.75rem; color: var(--text);">Add passkey</h3>
+                <p style="color: var(--text-muted); margin-bottom: 1rem;">Confirm with your current password, then follow your browser's passkey prompt.</p>
+                <form id="passkey-add-form" onsubmit="addPasskey(event)">
+                    <div class="form-group">
+                        <input type="text" id="passkey-name" placeholder="Passkey name" autocomplete="off">
+                    </div>
+                    <div class="form-group">
+                        <input type="password" id="passkey-add-password" placeholder="Current password" required autocomplete="current-password">
+                    </div>
+                    <button type="submit" class="btn btn-primary" style="width: auto; padding: 0.6rem 1.2rem;">Add passkey</button>
+                </form>
+            </div>
+
+            <div>
+                <h3 style="font-size: 1rem; margin-bottom: 0.75rem; color: var(--text);">Disable passkeys</h3>
+                <p style="color: var(--text-muted); margin-bottom: 1rem;">This removes all stored passkeys and revokes active refresh sessions.</p>
+                <form id="passkey-disable-form" onsubmit="disablePasskeys(event)">
+                    <div class="form-group">
+                        <input type="password" id="passkey-disable-password" placeholder="Current password" required autocomplete="current-password">
+                    </div>
+                    <button type="submit" class="btn btn-secondary danger-btn">Disable all passkeys</button>
+                </form>
+            </div>
+        </div>
+    </div>
 </div>
 {{ end }}

frontend/htmx/contents/dash/activity.html

@@ -0,0 +1,49 @@
+{{ define "content" }}
+<div class="page-header activity-header">
+    <div>
+        <h1>Activity Log</h1>
+        <p>Recent account, security, and inventory actions for your account.</p>
+    </div>
+    <button type="button" class="btn btn-secondary activity-refresh" onclick="loadActivityLog(true)">Refresh</button>
+</div>
+
+<div class="card activity-controls-card">
+    <div class="activity-control-panel">
+        <div class="activity-control-copy">
+            <span class="activity-eyebrow">Display</span>
+            <h2>Entries per page</h2>
+            <p>Choose how many log entries should be loaded at once.</p>
+        </div>
+        <div class="activity-entry-menu" role="group" aria-label="Entries per page">
+            <button type="button" class="activity-entry-option" data-limit="25" aria-pressed="false" onclick="setActivityLimit(25)">25</button>
+            <button type="button" class="activity-entry-option active" data-limit="50" aria-pressed="true" onclick="setActivityLimit(50)">50</button>
+            <button type="button" class="activity-entry-option" data-limit="100" aria-pressed="false" onclick="setActivityLimit(100)">100</button>
+        </div>
+    </div>
+    <div class="activity-note">
+        <strong>Privacy:</strong> Sensitive request bodies are never stored. The log keeps request metadata, action type, status, IP address, and user agent.
+    </div>
+</div>
+
+<div class="table-container activity-table-container">
+    <table>
+        <thead>
+        <tr>
+            <th>Time</th>
+            <th>Action</th>
+            <th>Target</th>
+            <th>Status</th>
+            <th>IP</th>
+            <th>Client</th>
+        </tr>
+        </thead>
+        <tbody id="activity-log-body">
+        <tr><td colspan="6" class="table-loader">Loading activity...</td></tr>
+        </tbody>
+    </table>
+</div>
+
+<div class="activity-load-more-wrap">
+    <button type="button" id="activity-load-more" class="btn btn-secondary activity-load-more" onclick="loadMoreActivity()">Load more</button>
+</div>
+{{ end }}

frontend/htmx/login.html

@@ -36,6 +36,8 @@
         </div>
 
         <button type="submit" id="login-submit" class="btn btn-primary">Sign In</button>
+        <button type="button" id="passkey-login-button" class="btn btn-secondary" style="margin-top: 0.75rem;">Sign in with passkey</button>
+        <p id="passkey-login-hint" class="subtitle" style="margin-top: 0.75rem;">Use a saved passkey from this device, your browser, or a security key. No username is required for passkey sign-in.</p>
     </form>
 
     <div id="error" class="message error"></div>

go.mod

@@ -4,6 +4,7 @@ go 1.26
 
 require (
 	github.com/glebarez/go-sqlite v1.22.0
+	github.com/go-webauthn/webauthn v0.17.4
 	github.com/golang-jwt/jwt/v5 v5.3.1
 	github.com/google/uuid v1.6.0
 	github.com/pquerna/otp v1.5.0
@@ -15,9 +16,17 @@ require (
 require (
 	github.com/boombuler/barcode v1.1.0 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/fxamacker/cbor/v2 v2.9.2 // indirect
+	github.com/go-viper/mapstructure/v2 v2.5.0 // indirect
+	github.com/go-webauthn/x v0.2.6 // indirect
+	github.com/google/go-tpm v0.9.8 // indirect
 	github.com/mattn/go-isatty v0.0.22 // indirect
+	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/philhofer/fwd v1.2.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/tdewolff/parse/v2 v2.8.13 // indirect
+	github.com/tinylib/msgp v1.6.4 // indirect
+	github.com/x448/float16 v0.8.4 // indirect
 	golang.org/x/sys v0.46.0 // indirect
 	modernc.org/libc v1.73.0 // indirect
 	modernc.org/mathutil v1.7.1 // indirect

go.sum

@@ -1,28 +1,39 @@
-github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc h1:biVzkmvwrH8WK8raXaxBx6fRVTlJILwEwQGL1I/ByEI=
 github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
 github.com/boombuler/barcode v1.1.0 h1:ChaYjBR63fr4LFyGn8E8nt7dBSt3MiU3zMOZqFvVkHo=
 github.com/boombuler/barcode v1.1.0/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
-github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/fxamacker/cbor/v2 v2.9.2 h1:X4Ksno9+x3cz0TZv69ec1hxP/+tymuR8PXQJyDwfh78=
+github.com/fxamacker/cbor/v2 v2.9.2/go.mod h1:vM4b+DJCtHn+zz7h3FFp/hDAI9WNWCsZj23V5ytsSxQ=
 github.com/glebarez/go-sqlite v1.22.0 h1:uAcMJhaA6r3LHMTFgP0SifzgXg46yJkgxqyuyec+ruQ=
 github.com/glebarez/go-sqlite v1.22.0/go.mod h1:PlBIdHe0+aUEFn+r2/uthrWq4FxbzugL0L8Li6yQJbc=
+github.com/go-viper/mapstructure/v2 v2.5.0 h1:vM5IJoUAy3d7zRSVtIwQgBj7BiWtMPfmPEgAXnvj1Ro=
+github.com/go-viper/mapstructure/v2 v2.5.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/go-webauthn/webauthn v0.17.4 h1:KFTSz3R2RYDiUn/0cDi3XTJgFenSG74eKTTHlqWhlxk=
+github.com/go-webauthn/webauthn v0.17.4/go.mod h1:pZk63EE/BdztlmyS4Yc+9H5g4a8blNlbtGmdHQHbZX8=
+github.com/go-webauthn/x v0.2.6 h1:TEyDuQAIiEgYpx60nKiBJIX/5nSUC8LxNbH+uf5U9uk=
+github.com/go-webauthn/x v0.2.6/go.mod h1:45bA7YEqyQhRcQJ/TiBb46Ww8yqHBGvgEhQ3WWF0aDo=
 github.com/golang-jwt/jwt/v5 v5.3.1 h1:kYf81DTWFe7t+1VvL7eS+jKFVWaUnK9cB1qbwn63YCY=
 github.com/golang-jwt/jwt/v5 v5.3.1/go.mod h1:fxCRLWMO43lRc8nhHWY6LGqRcf+1gQWArsqaEUEa5bE=
-github.com/google/pprof v0.0.0-20221118152302-e6195bd50e26 h1:Xim43kblpZXfIBQsbuBVKCudVG457BR2GZFIz3uw3hQ=
+github.com/google/go-tpm v0.9.8 h1:slArAR9Ft+1ybZu0lBwpSmpwhRXaa85hWtMinMyRAWo=
-github.com/google/pprof v0.0.0-20221118152302-e6195bd50e26/go.mod h1:dDKJzRmX4S37WGHujM7tX//fmj1uioxKzKxz3lo4HJo=
+github.com/google/go-tpm v0.9.8/go.mod h1:h9jEsEECg7gtLis0upRBQU+GhYVH6jMjrFxI8u6bVUY=
+github.com/google/go-tpm-tools v0.3.13-0.20230620182252-4639ecce2aba h1:qJEJcuLzH5KDR0gKc0zcktin6KSAwL7+jWKBYceddTc=
+github.com/google/go-tpm-tools v0.3.13-0.20230620182252-4639ecce2aba/go.mod h1:EFYHy8/1y2KfgTAsx7Luu7NGhoxtuVHnNo8jE7FikKc=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
-github.com/google/uuid v1.5.0 h1:1p67kYwdtXjb0gL0BPiP1Av9wiZPo5A8z2cWkTZ+eyU=
+github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
-github.com/google/uuid v1.5.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
-github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/mattn/go-isatty v0.0.22 h1:j8l17JJ9i6VGPUFUYoTUKPSgKe/83EYU2zBC7YNKMw4=
 github.com/mattn/go-isatty v0.0.22/go.mod h1:ZXfXG4SQHsB/w3ZeOYbR0PrPwLy+n6xiMrJlRFqopa4=
 github.com/ncruces/go-strftime v1.0.0 h1:HMFp8mLCTPp341M/ZnA4qaf7ZlsbTc+miZjCLOFAw7w=
 github.com/ncruces/go-strftime v1.0.0/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
+github.com/philhofer/fwd v1.2.0 h1:e6DnBTl7vGY+Gz322/ASL4Gyp1FspeMvx1RNDoToZuM=
+github.com/philhofer/fwd v1.2.0/go.mod h1:RqIHx9QI14HlwKwm98g9Re5prTQ6LdeRQn+gXJFxsJM=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/pquerna/otp v1.5.0 h1:NMMR+WrmaqXU4EzdGJEE1aUUI0AMRzsp96fFFWNPwxs=
@@ -30,43 +41,60 @@ github.com/pquerna/otp v1.5.0/go.mod h1:dkJfzwRKNiegxyNb54X/3fLwhCynbMspSyWKnvi1
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
 github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/tdewolff/minify/v2 v2.24.13 h1:xrcF7gKDnUszseEY9WX9mUlZII2v2Go/QAcAwRASw58=
 github.com/tdewolff/minify/v2 v2.24.13/go.mod h1:emvwoYeIl8bfAKqRU5ww95LX9Gpggpqv/naal9a8Yq0=
-github.com/tdewolff/parse/v2 v2.8.12 h1:5BBjfaCv482v3nltlS0u6wH1xJaxjR6ofDrWttNvROg=
-github.com/tdewolff/parse/v2 v2.8.12/go.mod h1:Hwlni2tiVNKyzR1o6nUs4FOF07URA+JLBLd6dlIXYqo=
 github.com/tdewolff/parse/v2 v2.8.13 h1:si/8rLw5BZZTWCCiMm9A3f6x+RmqYfrkEeXCgpX5ick=
 github.com/tdewolff/parse/v2 v2.8.13/go.mod h1:XdsoSFThlVIRIajAuqz1evNY7bagZS8LBOPA3aVopwQ=
-github.com/tdewolff/test v1.0.11/go.mod h1:XPuWBzvdUzhCuxWO1ojpXsyzsA5bFoS3tO/Q3kFuTG8=
 github.com/tdewolff/test v1.0.12 h1:7F21DqIajswxuche0geHdrUZRCWE4oko4b7bcmkkrxk=
 github.com/tdewolff/test v1.0.12/go.mod h1:XPuWBzvdUzhCuxWO1ojpXsyzsA5bFoS3tO/Q3kFuTG8=
-golang.org/x/crypto v0.52.0 h1:RMs7fP2rXdep0CftQlK8Uf+kibLm7qkCcradZWYz988=
+github.com/tinylib/msgp v1.6.4 h1:mOwYbyYDLPj35mkA2BjjYejgJk9BuHxDdvRnb6v2ZcQ=
-golang.org/x/crypto v0.52.0/go.mod h1:1QgfPxDqh0T2M/elOJtp9RvuR95kVjir0e6/BvEmGbc=
+github.com/tinylib/msgp v1.6.4/go.mod h1:RSp0LW9oSxFut3KzESt5Voq4GVWyS+PSulT77roAqEA=
+github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
+github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
+go.uber.org/mock v0.6.0 h1:hyF9dfmbgIX5EfOdasqLsWD6xqpNZlXblLB/Dbnwv3Y=
+go.uber.org/mock v0.6.0/go.mod h1:KiVJ4BqZJaMj4svdfmHM0AUx4NJYO8ZNpPnZn1Z+BBU=
 golang.org/x/crypto v0.53.0 h1:QZ4Muo8THX6CizN2vPPd5fBGHyogrdK9fG4wLPFUsto=
 golang.org/x/crypto v0.53.0/go.mod h1:DNLU434OwVakk9PzuwV8w62mAJpRJL3vsgcfp4Qnsio=
-golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/mod v0.36.0 h1:JJjpVx6myfUsUdAzZuOSTTmRE0PfZeNWzzvKrP7amb4=
-golang.org/x/sys v0.45.0 h1:dO4czNzziLiiXplLQgBCEpCvXQ3dnkn0SdaZSYdQ+FY=
+golang.org/x/mod v0.36.0/go.mod h1:moc6ELqsWcOw5Ef3xVprK5ul/MvtVvkIXLziUOICjUQ=
-golang.org/x/sys v0.45.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
+golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
 golang.org/x/sys v0.46.0 h1:noSf2Fq6F8DBgS+LysIkx7rIExoNHJsxOAtPp4rthXw=
 golang.org/x/sys v0.46.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/tools v0.45.0 h1:18qN3FAooORvApf5XjCXgsuayZOEtXf6JK18I3+ONa8=
+golang.org/x/tools v0.45.0/go.mod h1:LuUGqqaXcXMEFEruIVJVm5mgDD8vww/z/SR1gQ4uE/0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-modernc.org/libc v1.37.6 h1:orZH3c5wmhIQFTXF+Nt+eeauyd+ZIt2BX6ARe+kD+aw=
+modernc.org/cc/v4 v4.28.4 h1:Hd/4Es+MBj+/7hSdZaisNyu6bv3V0Dp2MdllyfqaH+c=
-modernc.org/libc v1.37.6/go.mod h1:YAXkAZ8ktnkCKaN9sw/UDeUVkGYJ/YquGO4FTi5nmHE=
+modernc.org/cc/v4 v4.28.4/go.mod h1:OnovgIhbbMXMu1aISnJ0wvVD1KnW+cAUJkIrAWh+kVI=
+modernc.org/ccgo/v4 v4.34.4 h1:OVnSOWQjVKOYkFxoHYB+qQmSHK5gqMqARM+K9DpR/Ws=
+modernc.org/ccgo/v4 v4.34.4/go.mod h1:qdKqE8FNIYyysougB1RX9MxCzp5oJOcQXSobANJ4TuE=
+modernc.org/fileutil v1.4.0 h1:j6ZzNTftVS054gi281TyLjHPp6CPHr2KCxEXjEbD6SM=
+modernc.org/fileutil v1.4.0/go.mod h1:EqdKFDxiByqxLk8ozOxObDSfcVOv/54xDs/DUHdvCUU=
+modernc.org/gc/v2 v2.6.5 h1:nyqdV8q46KvTpZlsw66kWqwXRHdjIlJOhG6kxiV/9xI=
+modernc.org/gc/v2 v2.6.5/go.mod h1:YgIahr1ypgfe7chRuJi2gD7DBQiKSLMPgBQe9oIiito=
+modernc.org/gc/v3 v3.1.3 h1:6QAplYyVO+KdPW3pGnqmJDUxtkec8ooEWvks/hhU3lc=
+modernc.org/gc/v3 v3.1.3/go.mod h1:HFK/6AGESC7Ex+EZJhJ2Gni6cTaYpSMmU/cT9RmlfYY=
+modernc.org/goabi0 v0.2.0 h1:HvEowk7LxcPd0eq6mVOAEMai46V+i7Jrj13t4AzuNks=
+modernc.org/goabi0 v0.2.0/go.mod h1:CEFRnnJhKvWT1c1JTI3Avm+tgOWbkOu5oPA8eH8LnMI=
 modernc.org/libc v1.73.0 h1:Y/KmTxbIN5T3x+NFjYOzV/+Ha7wKClfIecmTCTuYlqQ=
 modernc.org/libc v1.73.0/go.mod h1:DXZ3eO8qMCNn2SnmTNCiC71nJ9Rcq3PsnpU6Vc4rWK8=
-modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4=
-modernc.org/mathutil v1.6.0/go.mod h1:Ui5Q9q1TR2gFm0AQRqQUaBWFLAhQpCwNcuhBOSedWPo=
 modernc.org/mathutil v1.7.1 h1:GCZVGXdaN8gTqB1Mf/usp1Y/hSqgI2vAGGP4jZMCxOU=
 modernc.org/mathutil v1.7.1/go.mod h1:4p5IwJITfppl0G4sUEDtCr4DthTaT47/N3aT6MhfgJg=
-modernc.org/memory v1.7.2 h1:Klh90S215mmH8c9gO98QxQFsY+W451E8AnzjoE2ee1E=
-modernc.org/memory v1.7.2/go.mod h1:NO4NVCQy0N7ln+T9ngWqOQfi7ley4vpwvARR+Hjw95E=
 modernc.org/memory v1.11.0 h1:o4QC8aMQzmcwCK3t3Ux/ZHmwFPzE6hf2Y5LbkRs+hbI=
 modernc.org/memory v1.11.0/go.mod h1:/JP4VbVC+K5sU2wZi9bHoq2MAkCnrt2r98UGeSK7Mjw=
-modernc.org/sqlite v1.28.0 h1:Zx+LyDDmXczNnEQdvPuEfcFVA2ZPyaD7UCZDjef3BHQ=
+modernc.org/opt v0.2.0 h1:tGyef5ApycA7FSEOMraay9SaTk5zmbx7Tu+cJs4QKZg=
-modernc.org/sqlite v1.28.0/go.mod h1:Qxpazz0zH8Z1xCFyi5GSL3FzbtZ3fvbjmywNogldEW0=
+modernc.org/opt v0.2.0/go.mod h1:03fq9lsNfvkYSfxrfUhZCWPk1lm4cq4N+Bh//bEtgns=
+modernc.org/sortutil v1.2.1 h1:+xyoGf15mM3NMlPDnFqrteY07klSFxLElE2PVuWIJ7w=
+modernc.org/sortutil v1.2.1/go.mod h1:7ZI3a3REbai7gzCLcotuw9AC4VZVpYMjDzETGsSMqJE=
 modernc.org/sqlite v1.52.0 h1:p4dhYh2tXZCiyaqHwRVJDjIGKWyXayiQpThxgDzJaxo=
 modernc.org/sqlite v1.52.0/go.mod h1:tcNzv5p84E0skkmJn038y+hWJbLQXQqEnQfeh5r2JLM=
+modernc.org/strutil v1.2.1 h1:UneZBkQA+DX2Rp35KcM69cSsNES9ly8mQWD71HKlOA0=
+modernc.org/strutil v1.2.1/go.mod h1:EHkiggD70koQxjVdSBM3JKM7k6L0FbGE5eymy9i3B9A=
+modernc.org/token v1.1.0 h1:Xl7Ap9dKaEs5kLoOQeQmPWevfnk/DM5qcLcYlA8ys6Y=
+modernc.org/token v1.1.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=

handlers/account.go

@@ -26,18 +26,21 @@ func APIRegister(w http.ResponseWriter, r *http.Request) {
 	var user models.User
 	if err := json.NewDecoder(r.Body).Decode(&user); err != nil {
 		log.Println("POST [api/register] " + r.RemoteAddr + ": " + err.Error())
+		RecordActivity(r, "", "", "auth.register.failed", "auth", "", "Invalid request body", http.StatusBadRequest)
 		http.Error(w, "Invalid request body", http.StatusBadRequest)
 		return
 	}
 
 	if user.Username == "" || user.Password == "" {
 		log.Println("POST [api/register] " + r.RemoteAddr + ": Username or Password is empty")
+		RecordActivity(r, "", strings.ToLower(strings.TrimSpace(user.Username)), "auth.register.failed", "auth", "", "Username and password required", http.StatusBadRequest)
 		http.Error(w, "username and password required", http.StatusBadRequest)
 		return
 	}
 
 	if len(user.Password) > 72 {
 		log.Println("POST [api/register] User password too long")
+		RecordActivity(r, "", strings.ToLower(strings.TrimSpace(user.Username)), "auth.register.failed", "auth", "", "Password exceeds maximum length", http.StatusUnprocessableEntity)
 		http.Error(w, "Password exceeds the maximum allowed length of 72 characters", http.StatusUnprocessableEntity)
 		return
 	}
@@ -54,10 +57,12 @@ func APIRegister(w http.ResponseWriter, r *http.Request) {
 
 	if err := storage.AddUser(&user); err != nil {
 		log.Println("POST [api/register] " + r.RemoteAddr + ": " + err.Error())
+		RecordActivity(r, "", strings.ToLower(strings.TrimSpace(user.Username)), "auth.register.failed", "auth", "", "User already exists or could not be created", http.StatusBadRequest)
 		http.Error(w, "user already exists", http.StatusBadRequest)
 		return
 	}
 
+	RecordActivity(r, user.ID, strings.ToLower(strings.TrimSpace(user.Username)), "auth.register.succeeded", "auth", "", "User registered", http.StatusCreated)
 	w.WriteHeader(http.StatusCreated)
 	log.Println("POST [api/register] " + r.RemoteAddr + ": Successfully created user")
 }
@@ -69,6 +74,7 @@ func APILogin(w http.ResponseWriter, r *http.Request) {
 	}
 	if err := json.NewDecoder(r.Body).Decode(&creds); err != nil {
 		log.Println("POST [api/login] " + r.RemoteAddr + ": " + err.Error())
+		RecordActivity(r, "", "", "auth.login.failed", "auth", "", "Invalid request", http.StatusBadRequest)
 		http.Error(w, "Invalid request", http.StatusBadRequest)
 		return
 	}
@@ -76,12 +82,14 @@ func APILogin(w http.ResponseWriter, r *http.Request) {
 	user, err := storage.GetUserByUsername(creds.Username)
 	if err != nil {
 		log.Println("POST [api/login] " + r.RemoteAddr + ": " + err.Error())
+		RecordActivity(r, "", strings.ToLower(strings.TrimSpace(creds.Username)), "auth.login.failed", "auth", "", "Invalid credentials", http.StatusUnauthorized)
 		http.Error(w, "Invalid credentials", http.StatusUnauthorized)
 		return
 	}
 
 	if !auth.CheckPasswordHash(creds.Password, user.Password) {
 		log.Println("POST [api/login] " + r.RemoteAddr + ": Invalid credentials")
+		RecordActivity(r, user.ID, user.Username, "auth.login.failed", "auth", "", "Invalid credentials", http.StatusUnauthorized)
 		http.Error(w, "Invalid credentials", http.StatusUnauthorized)
 		return
 	}
@@ -105,11 +113,13 @@ func APILogin(w http.ResponseWriter, r *http.Request) {
 			"requires_2fa":     true,
 			"two_factor_token": twoFactorToken,
 		})
+		RecordActivity(r, user.ID, user.Username, "auth.login.password_accepted_2fa_required", "auth", "", "Password accepted; 2FA required", http.StatusOK)
 		log.Println("POST [api/login] " + r.RemoteAddr + ": Password accepted, 2FA required")
 		return
 	}
 
 	issueLoginSession(w, r, user)
+	RecordActivity(r, user.ID, user.Username, "auth.login.succeeded", "auth", "", "Password login succeeded", http.StatusOK)
 	log.Println("POST [api/login] " + r.RemoteAddr + ": Successfully logged in")
 }
 
@@ -120,6 +130,7 @@ func APILoginTwoFactor(w http.ResponseWriter, r *http.Request) {
 	}
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
 		log.Println("POST [api/login/2fa] " + r.RemoteAddr + ": " + err.Error())
+		RecordActivity(r, "", "", "auth.2fa_login.failed", "auth", "", "Invalid request", http.StatusBadRequest)
 		http.Error(w, "Invalid request", http.StatusBadRequest)
 		return
 	}
@@ -128,6 +139,7 @@ func APILoginTwoFactor(w http.ResponseWriter, r *http.Request) {
 	claims, err := auth.ValidatePurposeJWT(req.TwoFactorToken, auth.PurposeTwoFactorLogin, secret)
 	if err != nil {
 		log.Println("POST [api/login/2fa] " + r.RemoteAddr + ": " + err.Error())
+		RecordActivity(r, "", "", "auth.2fa_login.failed", "auth", "", "Invalid or expired 2FA challenge", http.StatusUnauthorized)
 		http.Error(w, "Invalid or expired 2FA challenge", http.StatusUnauthorized)
 		return
 	}
@@ -155,15 +167,18 @@ func APILoginTwoFactor(w http.ResponseWriter, r *http.Request) {
 
 	if !validTOTP && !usedRecoveryCode {
 		log.Println("POST [api/login/2fa] " + r.RemoteAddr + ": Invalid 2FA or recovery code")
+		RecordActivity(r, user.ID, user.Username, "auth.2fa_login.failed", "auth", "", "Invalid 2FA or recovery code", http.StatusUnauthorized)
 		http.Error(w, "Invalid 2FA or recovery code", http.StatusUnauthorized)
 		return
 	}
 
 	issueLoginSession(w, r, user)
 	if usedRecoveryCode {
+		RecordActivity(r, user.ID, user.Username, "auth.recovery_code_login.succeeded", "auth", "", "Recovery-code login succeeded", http.StatusOK)
 		log.Println("POST [api/login/2fa] " + r.RemoteAddr + ": Successfully logged in with recovery code")
 		return
 	}
+	RecordActivity(r, user.ID, user.Username, "auth.2fa_login.succeeded", "auth", "", "2FA login succeeded", http.StatusOK)
 	log.Println("POST [api/login/2fa] " + r.RemoteAddr + ": Successfully logged in with 2FA")
 }
 
@@ -584,6 +599,7 @@ func RefreshToken(w http.ResponseWriter, r *http.Request) {
 	}
 	if req.RefreshToken == "" {
 		log.Println("POST [api/refresh] " + r.RemoteAddr + ": Missing refresh token")
+		RecordActivity(r, "", "", "auth.refresh.failed", "auth", "", "Missing refresh token", http.StatusUnauthorized)
 		http.Error(w, "Invalid refresh token", http.StatusUnauthorized)
 		return
 	}
@@ -593,6 +609,7 @@ func RefreshToken(w http.ResponseWriter, r *http.Request) {
 	tokenRow, err := storage.GetRefreshToken(hashed)
 	if err != nil || tokenRow.Revoked || tokenRow.ExpiresAt < time.Now().Unix() {
 		log.Println("POST [api/refresh] " + r.RemoteAddr + ": Invalid refresh token")
+		RecordActivity(r, tokenRow.UserID, "", "auth.refresh.failed", "auth", "", "Invalid refresh token", http.StatusUnauthorized)
 		http.Error(w, "Invalid refresh token", http.StatusUnauthorized)
 		return
 	}
@@ -609,6 +626,7 @@ func RefreshToken(w http.ResponseWriter, r *http.Request) {
 	}
 
 	issueLoginSession(w, r, user)
+	RecordActivity(r, user.ID, user.Username, "auth.refresh.succeeded", "auth", "", "Refresh token rotated", http.StatusOK)
 	log.Println("POST [api/refresh] " + r.RemoteAddr + ": Successfully refreshed token")
 }
 
@@ -672,6 +690,10 @@ func UserInfo(w http.ResponseWriter, r *http.Request) {
 		twoFactorStatus = "setup_pending"
 	}
 	recoveryCodesWarning := user.TwoFactorEnabled && recoveryCodesRemaining <= recoveryCodeWarningThreshold
+	passkeyCount := 0
+	if count, err := storage.CountPasskeyCredentials(user.ID); err == nil {
+		passkeyCount = count
+	}
 
 	w.Header().Set("Content-Type", "application/json")
 	err = json.NewEncoder(w).Encode(map[string]interface{}{
@@ -683,6 +705,8 @@ func UserInfo(w http.ResponseWriter, r *http.Request) {
 		"recovery_codes_remaining":  recoveryCodesRemaining,
 		"recovery_codes_warning":    recoveryCodesWarning,
 		"recovery_codes_warning_at": recoveryCodeWarningThreshold,
+		"passkeys_enabled":          passkeyCount > 0,
+		"passkey_count":             passkeyCount,
 	})
 	if err != nil {
 		log.Println("GET [api/userinfo] " + r.RemoteAddr + ": " + err.Error())
@@ -732,6 +756,11 @@ func issueLoginSessionWithExtra(w http.ResponseWriter, r *http.Request, user mod
 		return
 	}
 
+	passkeyCount := 0
+	if count, err := storage.CountPasskeyCredentials(user.ID); err == nil {
+		passkeyCount = count
+	}
+
 	setAuthCookies(w, accessToken, refreshTokenPlain)
 	response := map[string]interface{}{
 		"access_token":  accessToken,
@@ -741,6 +770,8 @@ func issueLoginSessionWithExtra(w http.ResponseWriter, r *http.Request, user mod
 			"username":           user.Username,
 			"role":               user.Role,
 			"two_factor_enabled": user.TwoFactorEnabled,
+			"passkeys_enabled":   passkeyCount > 0,
+			"passkey_count":      passkeyCount,
 		},
 	}
 	for key, value := range extra {

handlers/activity.go

@@ -0,0 +1,223 @@
+package handlers
+
+import (
+	"MiauInv/auth"
+	"MiauInv/models"
+	"MiauInv/storage"
+	"log"
+	"net"
+	"net/http"
+	"strconv"
+	"strings"
+)
+
+type activityResponseWriter struct {
+	http.ResponseWriter
+	statusCode int
+}
+
+func (w *activityResponseWriter) WriteHeader(statusCode int) {
+	w.statusCode = statusCode
+	w.ResponseWriter.WriteHeader(statusCode)
+}
+
+func (w *activityResponseWriter) Write(data []byte) (int, error) {
+	if w.statusCode == 0 {
+		w.statusCode = http.StatusOK
+	}
+	return w.ResponseWriter.Write(data)
+}
+
+func ActivityMiddleware(entityType string, includeGET bool) func(http.Handler) http.Handler {
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			recorder := &activityResponseWriter{ResponseWriter: w}
+			next.ServeHTTP(recorder, r)
+
+			statusCode := recorder.statusCode
+			if statusCode == 0 {
+				statusCode = http.StatusOK
+			}
+
+			if !shouldRecordActivity(r, includeGET) {
+				return
+			}
+
+			claims, ok := r.Context().Value(auth.UserContextKey).(*auth.Claims)
+			if !ok || claims == nil {
+				return
+			}
+
+			username := ""
+			if user, err := storage.GetUserById(claims.UserID); err == nil {
+				username = user.Username
+			}
+
+			RecordActivity(r, claims.UserID, username, activityAction(r.Method, r.URL.Path), entityType, activityEntityID(r), activityDetails(statusCode), statusCode)
+		})
+	}
+}
+
+func ActivityLog(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	claims, ok := r.Context().Value(auth.UserContextKey).(*auth.Claims)
+	if !ok || claims == nil {
+		http.Error(w, "Unauthorized", http.StatusUnauthorized)
+		return
+	}
+
+	limit := parseBoundedInt(r.URL.Query().Get("limit"), 50, 1, 100)
+	offset := parseBoundedInt(r.URL.Query().Get("offset"), 0, 0, 100000)
+	includeAll := claims.Role == models.RoleAdmin && strings.EqualFold(r.URL.Query().Get("all"), "true")
+
+	entries, err := storage.ListActivityLogs(claims.UserID, includeAll, limit, offset)
+	if err != nil {
+		log.Println("GET [api/activity] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not load activity log", http.StatusInternalServerError)
+		return
+	}
+
+	writeJSON(w, http.StatusOK, map[string]interface{}{
+		"activity": entries,
+		"limit":    limit,
+		"offset":   offset,
+		"all":      includeAll,
+	})
+}
+
+func RecordActivity(r *http.Request, userID, username, action, entityType, entityID, details string, statusCode int) {
+	if statusCode == 0 {
+		statusCode = http.StatusOK
+	}
+	entry := models.ActivityLogEntry{
+		UserID:     userID,
+		Username:   truncateForActivity(username, 120),
+		Action:     truncateForActivity(action, 120),
+		EntityType: truncateForActivity(entityType, 80),
+		EntityID:   truncateForActivity(entityID, 120),
+		Details:    truncateForActivity(details, 500),
+		Method:     r.Method,
+		Path:       truncateForActivity(r.URL.Path, 255),
+		StatusCode: statusCode,
+		Success:    statusCode >= 200 && statusCode < 400,
+		IPAddress:  truncateForActivity(clientIP(r), 80),
+		UserAgent:  truncateForActivity(r.UserAgent(), 500),
+	}
+	if err := storage.AddActivityLog(entry); err != nil {
+		log.Println("ACTIVITY " + r.RemoteAddr + ": " + err.Error())
+	}
+}
+
+func shouldRecordActivity(r *http.Request, includeGET bool) bool {
+	if r.Method == http.MethodOptions || r.Method == http.MethodHead {
+		return false
+	}
+	if includeGET {
+		return true
+	}
+	return r.Method != http.MethodGet
+}
+
+func activityAction(method, path string) string {
+	path = strings.TrimSuffix(path, "/")
+
+	switch {
+	case path == "/api/logout":
+		return "auth.logout"
+	case path == "/api/account/username":
+		return "account.username.update"
+	case path == "/api/account/password":
+		return "account.password.update"
+	case path == "/api/2fa/setup":
+		return "security.2fa.setup"
+	case path == "/api/2fa/enable":
+		return "security.2fa.enable"
+	case path == "/api/2fa/disable":
+		return "security.2fa.disable"
+	case path == "/api/2fa/recovery-codes/regenerate":
+		return "security.2fa.recovery_codes.regenerate"
+	case path == "/api/passkeys/register/options":
+		return "security.passkey.registration.start"
+	case path == "/api/passkeys/register/finish":
+		return "security.passkey.registration.finish"
+	case path == "/api/passkeys/disable":
+		return "security.passkey.disable"
+	case path == "/api/passkeys":
+		if method == http.MethodDelete {
+			return "security.passkey.delete"
+		}
+		return "security.passkey.read"
+	}
+
+	switch method {
+	case http.MethodPost:
+		return "inventory.create"
+	case http.MethodPut:
+		return "inventory.update"
+	case http.MethodDelete:
+		return "inventory.delete"
+	case http.MethodGet:
+		return "inventory.read"
+	default:
+		return strings.ToLower(method)
+	}
+}
+
+func activityEntityID(r *http.Request) string {
+	if id := strings.TrimSpace(r.URL.Query().Get("id")); id != "" {
+		return id
+	}
+	return ""
+}
+
+func activityDetails(statusCode int) string {
+	if statusCode >= 200 && statusCode < 400 {
+		return "Request completed successfully."
+	}
+	return http.StatusText(statusCode)
+}
+
+func clientIP(r *http.Request) string {
+	if forwardedFor := strings.TrimSpace(r.Header.Get("X-Forwarded-For")); forwardedFor != "" {
+		parts := strings.Split(forwardedFor, ",")
+		return strings.TrimSpace(parts[0])
+	}
+	if realIP := strings.TrimSpace(r.Header.Get("X-Real-IP")); realIP != "" {
+		return realIP
+	}
+	host, _, err := net.SplitHostPort(r.RemoteAddr)
+	if err == nil {
+		return host
+	}
+	return r.RemoteAddr
+}
+
+func parseBoundedInt(raw string, fallback, min, max int) int {
+	if strings.TrimSpace(raw) == "" {
+		return fallback
+	}
+	value, err := strconv.Atoi(raw)
+	if err != nil {
+		return fallback
+	}
+	if value < min {
+		return min
+	}
+	if value > max {
+		return max
+	}
+	return value
+}
+
+func truncateForActivity(value string, max int) string {
+	value = strings.TrimSpace(value)
+	runes := []rune(value)
+	if max <= 0 || len(runes) <= max {
+		return value
+	}
+	return string(runes[:max])
+}

handlers/passkeys.go

@@ -0,0 +1,583 @@
+package handlers
+
+import (
+	"MiauInv/auth"
+	"MiauInv/models"
+	"MiauInv/storage"
+	utils "MiauInv/util"
+	"bytes"
+	"encoding/json"
+	"errors"
+	"io"
+	"log"
+	"net"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/go-webauthn/webauthn/protocol"
+	"github.com/go-webauthn/webauthn/webauthn"
+)
+
+const passkeyChallengeTTL = 5 * time.Minute
+
+type passkeyWebAuthnUser struct {
+	user        models.User
+	credentials []webauthn.Credential
+}
+
+func (user passkeyWebAuthnUser) WebAuthnID() []byte {
+	return []byte(user.user.ID)
+}
+
+func (user passkeyWebAuthnUser) WebAuthnName() string {
+	return user.user.Username
+}
+
+func (user passkeyWebAuthnUser) WebAuthnDisplayName() string {
+	return user.user.Username
+}
+
+func (user passkeyWebAuthnUser) WebAuthnCredentials() []webauthn.Credential {
+	return user.credentials
+}
+
+func Passkeys(w http.ResponseWriter, r *http.Request) {
+	switch r.Method {
+	case http.MethodGet:
+		listPasskeys(w, r)
+	case http.MethodDelete:
+		deletePasskey(w, r)
+	default:
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+	}
+}
+
+func PasskeyRegisterOptions(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var req struct {
+		Name     string `json:"name"`
+		Password string `json:"password"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		log.Println("POST [api/passkeys/register/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid request", http.StatusBadRequest)
+		return
+	}
+
+	if strings.TrimSpace(req.Password) == "" {
+		http.Error(w, "Current password required", http.StatusBadRequest)
+		return
+	}
+
+	claims := r.Context().Value(auth.UserContextKey).(*auth.Claims)
+	user, err := storage.GetUserById(claims.UserID)
+	if err != nil {
+		log.Println("POST [api/passkeys/register/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "User not found", http.StatusNotFound)
+		return
+	}
+
+	if !auth.CheckPasswordHash(req.Password, user.Password) {
+		http.Error(w, "Invalid password", http.StatusUnauthorized)
+		return
+	}
+
+	waUser, err := loadPasskeyWebAuthnUser(user)
+	if err != nil {
+		log.Println("POST [api/passkeys/register/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not load passkeys", http.StatusInternalServerError)
+		return
+	}
+
+	wa, err := webAuthnForRequest(r)
+	if err != nil {
+		log.Println("POST [api/passkeys/register/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid WebAuthn origin", http.StatusBadRequest)
+		return
+	}
+
+	creation, sessionData, err := wa.BeginRegistration(waUser,
+		webauthn.WithResidentKeyRequirement(protocol.ResidentKeyRequirementRequired),
+		webauthn.WithAuthenticatorSelection(protocol.AuthenticatorSelection{
+			RequireResidentKey: protocol.ResidentKeyRequired(),
+			ResidentKey:        protocol.ResidentKeyRequirementRequired,
+			UserVerification:   protocol.VerificationRequired,
+		}),
+		webauthn.WithExclusions(webauthn.Credentials(waUser.WebAuthnCredentials()).CredentialDescriptors()),
+		webauthn.WithExtensions(map[string]any{"credProps": true}),
+	)
+	if err != nil {
+		log.Println("POST [api/passkeys/register/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not create passkey registration challenge", http.StatusInternalServerError)
+		return
+	}
+
+	sessionToken, err := utils.GenerateOpaqueToken()
+	if err != nil {
+		log.Println("POST [api/passkeys/register/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not create passkey challenge", http.StatusInternalServerError)
+		return
+	}
+	if err := storage.SavePasskeyChallenge(sessionToken, user.ID, storage.PasskeyCeremonyRegister, *sessionData, passkeyChallengeTTL); err != nil {
+		log.Println("POST [api/passkeys/register/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not save passkey challenge", http.StatusInternalServerError)
+		return
+	}
+	_ = storage.CleanupExpiredPasskeyChallenges()
+
+	writeJSON(w, http.StatusOK, map[string]interface{}{
+		"session_token": sessionToken,
+		"options":       creation,
+	})
+	log.Println("POST [api/passkeys/register/options] " + r.RemoteAddr + ": Created passkey registration challenge")
+}
+
+func PasskeyRegisterFinish(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var req struct {
+		SessionToken string          `json:"session_token"`
+		Name         string          `json:"name"`
+		Credential   json.RawMessage `json:"credential"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		log.Println("POST [api/passkeys/register/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid request", http.StatusBadRequest)
+		return
+	}
+	if req.SessionToken == "" || len(req.Credential) == 0 {
+		http.Error(w, "Session token and credential required", http.StatusBadRequest)
+		return
+	}
+
+	claims := r.Context().Value(auth.UserContextKey).(*auth.Claims)
+	user, err := storage.GetUserById(claims.UserID)
+	if err != nil {
+		log.Println("POST [api/passkeys/register/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "User not found", http.StatusNotFound)
+		return
+	}
+
+	challenge, sessionData, err := storage.ConsumePasskeyChallenge(req.SessionToken, storage.PasskeyCeremonyRegister)
+	if err != nil {
+		log.Println("POST [api/passkeys/register/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid or expired passkey registration challenge", http.StatusUnauthorized)
+		return
+	}
+	if challenge.UserID != user.ID {
+		http.Error(w, "Invalid passkey registration challenge", http.StatusUnauthorized)
+		return
+	}
+
+	waUser, err := loadPasskeyWebAuthnUser(user)
+	if err != nil {
+		log.Println("POST [api/passkeys/register/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not load passkeys", http.StatusInternalServerError)
+		return
+	}
+
+	wa, err := webAuthnForRequest(r)
+	if err != nil {
+		log.Println("POST [api/passkeys/register/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid WebAuthn origin", http.StatusBadRequest)
+		return
+	}
+
+	credentialRequest := cloneRequestWithJSONBody(r, req.Credential)
+	credential, err := wa.FinishRegistration(waUser, sessionData, credentialRequest)
+	if err != nil {
+		log.Println("POST [api/passkeys/register/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not verify passkey registration", http.StatusUnauthorized)
+		return
+	}
+
+	name := strings.TrimSpace(req.Name)
+	if name == "" {
+		name = "Passkey"
+	}
+	if _, err := storage.AddPasskeyCredential(user.ID, name, credential); err != nil {
+		log.Println("POST [api/passkeys/register/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not save passkey", http.StatusInternalServerError)
+		return
+	}
+
+	if err := storage.RevokeAllRefreshTokensForUser(user.ID); err != nil {
+		log.Println("POST [api/passkeys/register/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not revoke old sessions", http.StatusInternalServerError)
+		return
+	}
+
+	passkeys, _ := storage.ListPasskeyCredentials(user.ID)
+	issueLoginSessionWithExtra(w, r, user, map[string]interface{}{
+		"passkeys_enabled": true,
+		"passkey_count":    len(passkeys),
+		"passkeys":         publicPasskeys(passkeys),
+	})
+	log.Println("POST [api/passkeys/register/finish] " + r.RemoteAddr + ": Registered passkey and revoked old sessions")
+}
+
+func PasskeyLoginOptions(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	wa, err := webAuthnForRequest(r)
+	if err != nil {
+		log.Println("POST [api/passkeys/login/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid WebAuthn origin", http.StatusBadRequest)
+		return
+	}
+
+	assertion, sessionData, err := wa.BeginDiscoverableLogin(webauthn.WithUserVerification(protocol.VerificationRequired))
+	if err != nil {
+		log.Println("POST [api/passkeys/login/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not create passkey login challenge", http.StatusInternalServerError)
+		return
+	}
+
+	sessionToken, err := utils.GenerateOpaqueToken()
+	if err != nil {
+		log.Println("POST [api/passkeys/login/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not create passkey challenge", http.StatusInternalServerError)
+		return
+	}
+	if err := storage.SavePasskeyChallenge(sessionToken, "", storage.PasskeyCeremonyLogin, *sessionData, passkeyChallengeTTL); err != nil {
+		log.Println("POST [api/passkeys/login/options] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not save passkey challenge", http.StatusInternalServerError)
+		return
+	}
+	_ = storage.CleanupExpiredPasskeyChallenges()
+
+	writeJSON(w, http.StatusOK, map[string]interface{}{
+		"session_token": sessionToken,
+		"options":       assertion,
+	})
+	log.Println("POST [api/passkeys/login/options] " + r.RemoteAddr + ": Created passkey login challenge")
+}
+
+func PasskeyLoginFinish(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var req struct {
+		SessionToken string          `json:"session_token"`
+		Credential   json.RawMessage `json:"credential"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		log.Println("POST [api/passkeys/login/finish] " + r.RemoteAddr + ": " + err.Error())
+		RecordActivity(r, "", "", "auth.passkey_login.failed", "auth", "", "Invalid request", http.StatusBadRequest)
+		http.Error(w, "Invalid request", http.StatusBadRequest)
+		return
+	}
+	if req.SessionToken == "" || len(req.Credential) == 0 {
+		http.Error(w, "Session token and credential required", http.StatusBadRequest)
+		return
+	}
+
+	challenge, sessionData, err := storage.ConsumePasskeyChallenge(req.SessionToken, storage.PasskeyCeremonyLogin)
+	if err != nil {
+		log.Println("POST [api/passkeys/login/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid or expired passkey login challenge", http.StatusUnauthorized)
+		return
+	}
+
+	wa, err := webAuthnForRequest(r)
+	if err != nil {
+		log.Println("POST [api/passkeys/login/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid WebAuthn origin", http.StatusBadRequest)
+		return
+	}
+
+	credentialRequest := cloneRequestWithJSONBody(r, req.Credential)
+
+	var user models.User
+	var credential *webauthn.Credential
+	if challenge.UserID == "" {
+		var webAuthnUser webauthn.User
+		webAuthnUser, credential, err = wa.FinishPasskeyLogin(passkeyDiscoverableUserHandler, sessionData, credentialRequest)
+		if err == nil {
+			resolvedUser, ok := webAuthnUser.(passkeyWebAuthnUser)
+			if !ok {
+				err = errors.New("invalid passkey user type")
+			} else {
+				user = resolvedUser.user
+			}
+		}
+	} else {
+		user, err = storage.GetUserById(challenge.UserID)
+		if err == nil {
+			waUser, loadErr := loadPasskeyWebAuthnUser(user)
+			if loadErr != nil {
+				err = loadErr
+			} else {
+				credential, err = wa.FinishLogin(waUser, sessionData, credentialRequest)
+			}
+		}
+	}
+	if err != nil {
+		log.Println("POST [api/passkeys/login/finish] " + r.RemoteAddr + ": " + err.Error())
+		RecordActivity(r, user.ID, user.Username, "auth.passkey_login.failed", "auth", "", "Could not verify passkey login", http.StatusUnauthorized)
+		http.Error(w, "Could not verify passkey login", http.StatusUnauthorized)
+		return
+	}
+
+	if err := storage.UpdatePasskeyCredentialAfterLogin(user.ID, credential); err != nil {
+		log.Println("POST [api/passkeys/login/finish] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not update passkey", http.StatusInternalServerError)
+		return
+	}
+
+	issueLoginSession(w, r, user)
+	RecordActivity(r, user.ID, user.Username, "auth.passkey_login.succeeded", "auth", "", "Passkey login succeeded", http.StatusOK)
+	log.Println("POST [api/passkeys/login/finish] " + r.RemoteAddr + ": Successfully logged in with passkey")
+}
+
+func PasskeyDisable(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var req struct {
+		Password string `json:"password"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		log.Println("POST [api/passkeys/disable] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid request", http.StatusBadRequest)
+		return
+	}
+
+	claims := r.Context().Value(auth.UserContextKey).(*auth.Claims)
+	user, err := storage.GetUserById(claims.UserID)
+	if err != nil {
+		log.Println("POST [api/passkeys/disable] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "User not found", http.StatusNotFound)
+		return
+	}
+	if !auth.CheckPasswordHash(req.Password, user.Password) {
+		http.Error(w, "Invalid password", http.StatusUnauthorized)
+		return
+	}
+
+	if err := storage.DeleteAllPasskeyCredentials(user.ID); err != nil {
+		log.Println("POST [api/passkeys/disable] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not disable passkeys", http.StatusInternalServerError)
+		return
+	}
+	if err := storage.RevokeAllRefreshTokensForUser(user.ID); err != nil {
+		log.Println("POST [api/passkeys/disable] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not revoke old sessions", http.StatusInternalServerError)
+		return
+	}
+
+	issueLoginSessionWithExtra(w, r, user, map[string]interface{}{
+		"passkeys_enabled": false,
+		"passkey_count":    0,
+		"passkeys":         []map[string]interface{}{},
+	})
+	log.Println("POST [api/passkeys/disable] " + r.RemoteAddr + ": Disabled passkeys and revoked old sessions")
+}
+
+func listPasskeys(w http.ResponseWriter, r *http.Request) {
+	claims := r.Context().Value(auth.UserContextKey).(*auth.Claims)
+	passkeys, err := storage.ListPasskeyCredentials(claims.UserID)
+	if err != nil {
+		log.Println("GET [api/passkeys] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not load passkeys", http.StatusInternalServerError)
+		return
+	}
+
+	writeJSON(w, http.StatusOK, map[string]interface{}{
+		"passkeys":         publicPasskeys(passkeys),
+		"passkeys_enabled": len(passkeys) > 0,
+		"passkey_count":    len(passkeys),
+	})
+}
+
+func deletePasskey(w http.ResponseWriter, r *http.Request) {
+	var req struct {
+		ID       string `json:"id"`
+		Password string `json:"password"`
+	}
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+		log.Println("DELETE [api/passkeys] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Invalid request", http.StatusBadRequest)
+		return
+	}
+	if req.ID == "" || req.Password == "" {
+		http.Error(w, "Passkey ID and password required", http.StatusBadRequest)
+		return
+	}
+
+	claims := r.Context().Value(auth.UserContextKey).(*auth.Claims)
+	user, err := storage.GetUserById(claims.UserID)
+	if err != nil {
+		log.Println("DELETE [api/passkeys] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "User not found", http.StatusNotFound)
+		return
+	}
+	if !auth.CheckPasswordHash(req.Password, user.Password) {
+		http.Error(w, "Invalid password", http.StatusUnauthorized)
+		return
+	}
+
+	if _, err := storage.GetPasskeyCredentialByID(user.ID, req.ID); err != nil {
+		http.Error(w, "Passkey not found", http.StatusNotFound)
+		return
+	}
+	if err := storage.DeletePasskeyCredential(user.ID, req.ID); err != nil {
+		log.Println("DELETE [api/passkeys] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not delete passkey", http.StatusInternalServerError)
+		return
+	}
+	if err := storage.RevokeAllRefreshTokensForUser(user.ID); err != nil {
+		log.Println("DELETE [api/passkeys] " + r.RemoteAddr + ": " + err.Error())
+		http.Error(w, "Could not revoke old sessions", http.StatusInternalServerError)
+		return
+	}
+
+	passkeys, _ := storage.ListPasskeyCredentials(user.ID)
+	issueLoginSessionWithExtra(w, r, user, map[string]interface{}{
+		"passkeys_enabled": len(passkeys) > 0,
+		"passkey_count":    len(passkeys),
+		"passkeys":         publicPasskeys(passkeys),
+	})
+	log.Println("DELETE [api/passkeys] " + r.RemoteAddr + ": Deleted passkey and revoked old sessions")
+}
+
+func loadPasskeyWebAuthnUser(user models.User) (passkeyWebAuthnUser, error) {
+	rows, err := storage.ListPasskeyCredentials(user.ID)
+	if err != nil {
+		return passkeyWebAuthnUser{}, err
+	}
+	credentials, err := storage.DecodeWebAuthnCredentials(rows)
+	if err != nil {
+		return passkeyWebAuthnUser{}, err
+	}
+	return passkeyWebAuthnUser{user: user, credentials: credentials}, nil
+}
+
+func passkeyDiscoverableUserHandler(rawID, userHandle []byte) (webauthn.User, error) {
+	row, err := storage.GetPasskeyCredentialByCredentialID(utils.EncodeBase64URL(rawID))
+	if err != nil {
+		return nil, err
+	}
+	if row.UserID != string(userHandle) {
+		return nil, errors.New("passkey user handle mismatch")
+	}
+	user, err := storage.GetUserById(row.UserID)
+	if err != nil {
+		return nil, err
+	}
+	return loadPasskeyWebAuthnUser(user)
+}
+
+func publicPasskeys(passkeys []models.PasskeyCredential) []map[string]interface{} {
+	out := make([]map[string]interface{}, 0, len(passkeys))
+	for _, passkey := range passkeys {
+		item := map[string]interface{}{
+			"id":            passkey.ID,
+			"name":          passkey.Name,
+			"credential_id": passkey.CredentialID,
+			"created_at":    passkey.CreatedAt,
+		}
+		if passkey.LastUsedAt > 0 {
+			item["last_used_at"] = passkey.LastUsedAt
+		}
+		out = append(out, item)
+	}
+	return out
+}
+
+func webAuthnForRequest(r *http.Request) (*webauthn.WebAuthn, error) {
+	origin, rpID, err := passkeyOriginAndRPID(r)
+	if err != nil {
+		return nil, err
+	}
+
+	return webauthn.New(&webauthn.Config{
+		RPID:                        rpID,
+		RPDisplayName:               "MiauInv",
+		RPOrigins:                   []string{origin},
+		RPTopOrigins:                []string{origin},
+		RPTopOriginVerificationMode: protocol.TopOriginExplicitVerificationMode,
+		AuthenticatorSelection: protocol.AuthenticatorSelection{
+			RequireResidentKey: protocol.ResidentKeyRequired(),
+			ResidentKey:        protocol.ResidentKeyRequirementRequired,
+			UserVerification:   protocol.VerificationRequired,
+		},
+	})
+}
+
+func passkeyOriginAndRPID(r *http.Request) (string, string, error) {
+	origin := strings.TrimSpace(r.Header.Get("Origin"))
+	if origin == "" {
+		scheme := strings.TrimSpace(r.Header.Get("X-Forwarded-Proto"))
+		if scheme == "" {
+			scheme = "https"
+		}
+		host := requestHost(r)
+		if host == "" {
+			return "", "", errors.New("missing request host")
+		}
+		origin = scheme + "://" + host
+	}
+
+	parsedOrigin, err := url.Parse(origin)
+	if err != nil || parsedOrigin.Scheme == "" || parsedOrigin.Host == "" {
+		return "", "", errors.New("invalid origin")
+	}
+	if parsedOrigin.Scheme != "https" && parsedOrigin.Hostname() != "localhost" {
+		return "", "", errors.New("passkeys require HTTPS except for localhost")
+	}
+
+	originHost := strings.ToLower(parsedOrigin.Hostname())
+	allowedHost := strings.ToLower(stripPort(requestHost(r)))
+	if allowedHost != "" && originHost != allowedHost {
+		return "", "", errors.New("origin host does not match request host")
+	}
+
+	return parsedOrigin.Scheme + "://" + parsedOrigin.Host, originHost, nil
+}
+
+func requestHost(r *http.Request) string {
+	if forwardedHost := strings.TrimSpace(r.Header.Get("X-Forwarded-Host")); forwardedHost != "" {
+		parts := strings.Split(forwardedHost, ",")
+		return strings.TrimSpace(parts[0])
+	}
+	return strings.TrimSpace(r.Host)
+}
+
+func stripPort(host string) string {
+	if host == "" {
+		return ""
+	}
+	if parsedHost, _, err := net.SplitHostPort(host); err == nil {
+		return parsedHost
+	}
+	if strings.Count(host, ":") == 0 {
+		return host
+	}
+	return host
+}
+
+func cloneRequestWithJSONBody(r *http.Request, raw json.RawMessage) *http.Request {
+	clone := r.Clone(r.Context())
+	clone.Body = io.NopCloser(bytes.NewReader(raw))
+	clone.ContentLength = int64(len(raw))
+	clone.Header = r.Header.Clone()
+	clone.Header.Set("Content-Type", "application/json")
+	return clone
+}

models/activity.go

@@ -0,0 +1,18 @@
+package models
+
+type ActivityLogEntry struct {
+	ID         string `json:"id"`
+	UserID     string `json:"user_id"`
+	Username   string `json:"username"`
+	Action     string `json:"action"`
+	EntityType string `json:"entity_type"`
+	EntityID   string `json:"entity_id"`
+	Details    string `json:"details"`
+	Method     string `json:"method"`
+	Path       string `json:"path"`
+	StatusCode int    `json:"status_code"`
+	Success    bool   `json:"success"`
+	IPAddress  string `json:"ip_address"`
+	UserAgent  string `json:"user_agent"`
+	CreatedAt  int64  `json:"created_at"`
+}

models/passkeys.go

@@ -0,0 +1,19 @@
+package models
+
+type PasskeyCredential struct {
+	ID             string `json:"id"`
+	UserID         string `json:"user_id"`
+	CredentialID   string `json:"credential_id"`
+	Name           string `json:"name"`
+	CredentialData string `json:"-"`
+	CreatedAt      int64  `json:"created_at"`
+	LastUsedAt     int64  `json:"last_used_at,omitempty"`
+}
+
+type PasskeyChallenge struct {
+	Token       string `json:"token"`
+	UserID      string `json:"user_id"`
+	Ceremony    string `json:"ceremony"`
+	SessionData string `json:"-"`
+	ExpiresAt   int64  `json:"expires_at"`
+}

server/server.go

@@ -73,6 +73,7 @@ func (this *Server) Run() {
 	mux.Handle("/locations", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(frontend.Locations)))
 	mux.Handle("/projects", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(frontend.Projects)))
 	mux.Handle("/profile/settings", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(frontend.AccountSettings)))
+	mux.Handle("/profile/activity", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(frontend.Activity)))
 	mux.HandleFunc("/profile/", utils.RenderFile("frontend/htmx/under-construction.html"))
 	if this.AllowRegistration {
 		mux.HandleFunc("/register", utils.RenderFile("frontend/htmx/register.html"))
@@ -85,28 +86,43 @@ func (this *Server) Run() {
 	//
 	loginLimiter := newRateLimiter(10, time.Minute, 5*time.Minute)
 	accountLimiter := newRateLimiter(20, time.Minute, 2*time.Minute)
+	activityLimiter := newRateLimiter(60, time.Minute, 2*time.Minute)
+
+	authed := func(handler http.HandlerFunc) http.Handler {
+		return auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handler))
+	}
+	audited := func(entityType string, handler http.HandlerFunc) http.Handler {
+		return auth.AuthMiddleware(this.JWTSecret)(handlers.ActivityMiddleware(entityType, false)(http.HandlerFunc(handler)))
+	}
 
 	mux.Handle("/api/login", loginLimiter.Middleware(http.HandlerFunc(handlers.APILogin)))
 	mux.Handle("/api/login/2fa", loginLimiter.Middleware(http.HandlerFunc(handlers.APILoginTwoFactor)))
 	mux.Handle("/api/refresh", loginLimiter.Middleware(http.HandlerFunc(handlers.RefreshToken)))
-	mux.Handle("/api/logout", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.Logout)))
+	mux.Handle("/api/logout", auth.AuthMiddleware(this.JWTSecret)(handlers.ActivityMiddleware("auth", true)(http.HandlerFunc(handlers.Logout))))
-	mux.Handle("/api/profile", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.UserInfo)))
+	mux.Handle("/api/profile", authed(handlers.UserInfo))
-	mux.Handle("/api/2fa/setup", accountLimiter.Middleware(auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.TwoFactorSetup))))
+	mux.Handle("/api/activity", activityLimiter.Middleware(authed(handlers.ActivityLog)))
-	mux.Handle("/api/2fa/enable", loginLimiter.Middleware(auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.TwoFactorEnable))))
+	mux.Handle("/api/2fa/setup", accountLimiter.Middleware(audited("security", handlers.TwoFactorSetup)))
-	mux.Handle("/api/2fa/disable", loginLimiter.Middleware(auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.TwoFactorDisable))))
+	mux.Handle("/api/2fa/enable", loginLimiter.Middleware(audited("security", handlers.TwoFactorEnable)))
-	mux.Handle("/api/2fa/recovery-codes/regenerate", loginLimiter.Middleware(auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.TwoFactorRegenerateRecoveryCodes))))
+	mux.Handle("/api/2fa/disable", loginLimiter.Middleware(audited("security", handlers.TwoFactorDisable)))
-	mux.Handle("/api/userinfo", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.UserInfo)))
+	mux.Handle("/api/2fa/recovery-codes/regenerate", loginLimiter.Middleware(audited("security", handlers.TwoFactorRegenerateRecoveryCodes)))
-	mux.Handle("/api/account/username", accountLimiter.Middleware(auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.AccountUpdateUsername))))
+	mux.Handle("/api/userinfo", authed(handlers.UserInfo))
-	mux.Handle("/api/account/password", loginLimiter.Middleware(auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.AccountUpdatePassword))))
+	mux.Handle("/api/account/username", accountLimiter.Middleware(audited("account", handlers.AccountUpdateUsername)))
+	mux.Handle("/api/account/password", loginLimiter.Middleware(audited("account", handlers.AccountUpdatePassword)))
+	mux.Handle("/api/passkeys", accountLimiter.Middleware(audited("security", handlers.Passkeys)))
+	mux.Handle("/api/passkeys/register/options", accountLimiter.Middleware(audited("security", handlers.PasskeyRegisterOptions)))
+	mux.Handle("/api/passkeys/register/finish", accountLimiter.Middleware(audited("security", handlers.PasskeyRegisterFinish)))
+	mux.Handle("/api/passkeys/disable", loginLimiter.Middleware(audited("security", handlers.PasskeyDisable)))
+	mux.Handle("/api/passkeys/login/options", loginLimiter.Middleware(http.HandlerFunc(handlers.PasskeyLoginOptions)))
+	mux.Handle("/api/passkeys/login/finish", loginLimiter.Middleware(http.HandlerFunc(handlers.PasskeyLoginFinish)))
 	if this.AllowRegistration {
 		mux.Handle("/api/register", loginLimiter.Middleware(http.HandlerFunc(handlers.APIRegister)))
 	}
 
-	mux.Handle("/api/item", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.Item)))
+	mux.Handle("/api/item", audited("item", handlers.Item))
-	mux.Handle("/api/location", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.Location)))
+	mux.Handle("/api/location", audited("location", handlers.Location))
-	mux.Handle("/api/project", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.Project)))
+	mux.Handle("/api/project", audited("project", handlers.Project))
-	mux.Handle("/api/stock", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.Stock)))
+	mux.Handle("/api/stock", audited("stock", handlers.Stock))
-	mux.Handle("/api/association", auth.AuthMiddleware(this.JWTSecret)(http.HandlerFunc(handlers.Associations)))
+	mux.Handle("/api/association", audited("association", handlers.Associations))
 
 	// Assets
 	mux.HandleFunc("/assets/", frontend.Assets)

storage/passkeys.go

@@ -0,0 +1,262 @@
+package storage
+
+import (
+	"MiauInv/models"
+	utils "MiauInv/util"
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"time"
+
+	"github.com/go-webauthn/webauthn/webauthn"
+)
+
+const (
+	PasskeyCeremonyRegister = "register"
+	PasskeyCeremonyLogin    = "login"
+)
+
+func AddPasskeyCredential(userID, name string, credential *webauthn.Credential) (models.PasskeyCredential, error) {
+	if DB == nil {
+		return models.PasskeyCredential{}, errors.New("db not initialized")
+	}
+
+	credentialJSON, err := json.Marshal(credential)
+	if err != nil {
+		return models.PasskeyCredential{}, err
+	}
+
+	row := models.PasskeyCredential{
+		ID:             utils.GenerateUUID(),
+		UserID:         userID,
+		CredentialID:   utils.EncodeBase64URL(credential.ID),
+		Name:           name,
+		CredentialData: string(credentialJSON),
+		CreatedAt:      time.Now().Unix(),
+	}
+	if row.Name == "" {
+		row.Name = "Passkey"
+	}
+
+	_, err = DB.Exec(`
+		INSERT INTO passkey_credentials(id, user_id, credential_id, name, credential_data, created_at, last_used_at)
+		VALUES (?, ?, ?, ?, ?, ?, NULL)
+	`, row.ID, row.UserID, row.CredentialID, row.Name, row.CredentialData, row.CreatedAt)
+	if err != nil {
+		return models.PasskeyCredential{}, err
+	}
+
+	return row, nil
+}
+
+func ListPasskeyCredentials(userID string) ([]models.PasskeyCredential, error) {
+	if DB == nil {
+		return nil, errors.New("db not initialized")
+	}
+
+	rows, err := DB.Query(`
+		SELECT id, user_id, credential_id, name, credential_data, created_at, COALESCE(last_used_at, 0)
+		FROM passkey_credentials
+		WHERE user_id = ?
+		ORDER BY created_at DESC
+	`, userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	credentials := make([]models.PasskeyCredential, 0)
+	for rows.Next() {
+		var credential models.PasskeyCredential
+		if err := rows.Scan(&credential.ID, &credential.UserID, &credential.CredentialID, &credential.Name, &credential.CredentialData, &credential.CreatedAt, &credential.LastUsedAt); err != nil {
+			return nil, err
+		}
+		credentials = append(credentials, credential)
+	}
+	return credentials, rows.Err()
+}
+
+func CountPasskeyCredentials(userID string) (int, error) {
+	if DB == nil {
+		return 0, errors.New("db not initialized")
+	}
+
+	var count int
+	err := DB.QueryRow("SELECT COUNT(*) FROM passkey_credentials WHERE user_id = ?", userID).Scan(&count)
+	return count, err
+}
+
+func GetPasskeyCredentialByCredentialID(credentialID string) (models.PasskeyCredential, error) {
+	if DB == nil {
+		return models.PasskeyCredential{}, errors.New("db not initialized")
+	}
+
+	row := DB.QueryRow(`
+		SELECT id, user_id, credential_id, name, credential_data, created_at, COALESCE(last_used_at, 0)
+		FROM passkey_credentials
+		WHERE credential_id = ?
+	`, credentialID)
+	return scanPasskeyCredential(row)
+}
+
+func GetPasskeyCredentialByID(userID, id string) (models.PasskeyCredential, error) {
+	if DB == nil {
+		return models.PasskeyCredential{}, errors.New("db not initialized")
+	}
+
+	row := DB.QueryRow(`
+		SELECT id, user_id, credential_id, name, credential_data, created_at, COALESCE(last_used_at, 0)
+		FROM passkey_credentials
+		WHERE user_id = ? AND id = ?
+	`, userID, id)
+	return scanPasskeyCredential(row)
+}
+
+func scanPasskeyCredential(row *sql.Row) (models.PasskeyCredential, error) {
+	var credential models.PasskeyCredential
+	err := row.Scan(&credential.ID, &credential.UserID, &credential.CredentialID, &credential.Name, &credential.CredentialData, &credential.CreatedAt, &credential.LastUsedAt)
+	return credential, err
+}
+
+func DecodeWebAuthnCredential(row models.PasskeyCredential) (webauthn.Credential, error) {
+	var credential webauthn.Credential
+	err := json.Unmarshal([]byte(row.CredentialData), &credential)
+	return credential, err
+}
+
+func DecodeWebAuthnCredentials(rows []models.PasskeyCredential) ([]webauthn.Credential, error) {
+	credentials := make([]webauthn.Credential, 0, len(rows))
+	for _, row := range rows {
+		credential, err := DecodeWebAuthnCredential(row)
+		if err != nil {
+			return nil, err
+		}
+		credentials = append(credentials, credential)
+	}
+	return credentials, nil
+}
+
+func UpdatePasskeyCredentialAfterLogin(userID string, credential *webauthn.Credential) error {
+	if DB == nil {
+		return errors.New("db not initialized")
+	}
+
+	credentialID := utils.EncodeBase64URL(credential.ID)
+	credentialJSON, err := json.Marshal(credential)
+	if err != nil {
+		return err
+	}
+
+	res, err := DB.Exec(`
+		UPDATE passkey_credentials
+		SET credential_data = ?, last_used_at = ?
+		WHERE user_id = ? AND credential_id = ?
+	`, string(credentialJSON), time.Now().Unix(), userID, credentialID)
+	if err != nil {
+		return err
+	}
+	n, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+	if n == 0 {
+		return ErrNotFound
+	}
+	return nil
+}
+
+func DeletePasskeyCredential(userID, id string) error {
+	if DB == nil {
+		return errors.New("db not initialized")
+	}
+
+	res, err := DB.Exec("DELETE FROM passkey_credentials WHERE user_id = ? AND id = ?", userID, id)
+	if err != nil {
+		return err
+	}
+	n, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+	if n == 0 {
+		return ErrNotFound
+	}
+	return nil
+}
+
+func DeleteAllPasskeyCredentials(userID string) error {
+	if DB == nil {
+		return errors.New("db not initialized")
+	}
+
+	_, err := DB.Exec("DELETE FROM passkey_credentials WHERE user_id = ?", userID)
+	return err
+}
+
+func SavePasskeyChallenge(token, userID, ceremony string, sessionData webauthn.SessionData, ttl time.Duration) error {
+	if DB == nil {
+		return errors.New("db not initialized")
+	}
+
+	encodedSession, err := json.Marshal(sessionData)
+	if err != nil {
+		return err
+	}
+
+	_, err = DB.Exec(`
+		INSERT INTO passkey_challenges(token, user_id, ceremony, session_data, expires_at)
+		VALUES (?, ?, ?, ?, ?)
+	`, token, userID, ceremony, string(encodedSession), time.Now().Add(ttl).Unix())
+	return err
+}
+
+func ConsumePasskeyChallenge(token, ceremony string) (models.PasskeyChallenge, webauthn.SessionData, error) {
+	if DB == nil {
+		return models.PasskeyChallenge{}, webauthn.SessionData{}, errors.New("db not initialized")
+	}
+
+	tx, err := DB.Begin()
+	if err != nil {
+		return models.PasskeyChallenge{}, webauthn.SessionData{}, err
+	}
+	defer tx.Rollback()
+
+	row := tx.QueryRow(`
+		SELECT token, user_id, ceremony, session_data, expires_at
+		FROM passkey_challenges
+		WHERE token = ? AND ceremony = ?
+	`, token, ceremony)
+
+	var challenge models.PasskeyChallenge
+	if err := row.Scan(&challenge.Token, &challenge.UserID, &challenge.Ceremony, &challenge.SessionData, &challenge.ExpiresAt); err != nil {
+		return models.PasskeyChallenge{}, webauthn.SessionData{}, err
+	}
+
+	if _, err := tx.Exec("DELETE FROM passkey_challenges WHERE token = ?", token); err != nil {
+		return models.PasskeyChallenge{}, webauthn.SessionData{}, err
+	}
+
+	if challenge.ExpiresAt < time.Now().Unix() {
+		return models.PasskeyChallenge{}, webauthn.SessionData{}, errors.New("passkey challenge expired")
+	}
+
+	var sessionData webauthn.SessionData
+	if err := json.Unmarshal([]byte(challenge.SessionData), &sessionData); err != nil {
+		return models.PasskeyChallenge{}, webauthn.SessionData{}, err
+	}
+
+	if err := tx.Commit(); err != nil {
+		return models.PasskeyChallenge{}, webauthn.SessionData{}, err
+	}
+
+	return challenge, sessionData, nil
+}
+
+func CleanupExpiredPasskeyChallenges() error {
+	if DB == nil {
+		return errors.New("db not initialized")
+	}
+
+	_, err := DB.Exec("DELETE FROM passkey_challenges WHERE expires_at < ?", time.Now().Unix())
+	return err
+}

storage/storage.go

@@ -55,6 +55,42 @@ func InitDB(filepath string) error {
         UNIQUE(user_id, code_hash)
     );
 
+    CREATE TABLE IF NOT EXISTS passkey_credentials (
+        id TEXT PRIMARY KEY,
+        user_id TEXT NOT NULL,
+        credential_id TEXT NOT NULL UNIQUE,
+        name TEXT NOT NULL,
+        credential_data TEXT NOT NULL,
+        created_at INTEGER NOT NULL,
+        last_used_at INTEGER DEFAULT NULL,
+        FOREIGN KEY(user_id) REFERENCES users(id) ON DELETE CASCADE
+    );
+
+    CREATE TABLE IF NOT EXISTS passkey_challenges (
+        token TEXT PRIMARY KEY,
+        user_id TEXT NOT NULL DEFAULT '',
+        ceremony TEXT NOT NULL,
+        session_data TEXT NOT NULL,
+        expires_at INTEGER NOT NULL
+    );
+
+    CREATE TABLE IF NOT EXISTS activity_logs (
+        id TEXT PRIMARY KEY,
+        user_id TEXT NOT NULL DEFAULT '',
+        username TEXT NOT NULL DEFAULT '',
+        action TEXT NOT NULL,
+        entity_type TEXT NOT NULL DEFAULT '',
+        entity_id TEXT NOT NULL DEFAULT '',
+        details TEXT NOT NULL DEFAULT '',
+        method TEXT NOT NULL DEFAULT '',
+        path TEXT NOT NULL DEFAULT '',
+        status_code INTEGER NOT NULL DEFAULT 0,
+        success INTEGER NOT NULL DEFAULT 0,
+        ip_address TEXT NOT NULL DEFAULT '',
+        user_agent TEXT NOT NULL DEFAULT '',
+        created_at INTEGER NOT NULL
+    );
+
 	CREATE TABLE IF NOT EXISTS items (
 	    id INTEGER PRIMARY KEY AUTOINCREMENT,
 	    name TEXT NOT NULL,
@@ -102,6 +138,10 @@ func InitDB(filepath string) error {
 		return err
 	}
 
+	if err := ensureActivityLogIndexes(); err != nil {
+		return err
+	}
+
 	return nil
 }
 
@@ -120,6 +160,97 @@ func ensureUserTwoFactorColumns() error {
 	return nil
 }
 
+func ensureActivityLogIndexes() error {
+	indexes := []string{
+		"CREATE INDEX IF NOT EXISTS idx_activity_logs_user_created ON activity_logs(user_id, created_at DESC)",
+		"CREATE INDEX IF NOT EXISTS idx_activity_logs_created ON activity_logs(created_at DESC)",
+		"CREATE INDEX IF NOT EXISTS idx_activity_logs_action ON activity_logs(action)",
+	}
+
+	for _, stmt := range indexes {
+		if _, err := DB.Exec(stmt); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// Activity logs
+func AddActivityLog(entry models.ActivityLogEntry) error {
+	if DB == nil {
+		return errors.New("db not initialized")
+	}
+	if entry.ID == "" {
+		entry.ID = utils.GenerateUUID()
+	}
+	if entry.CreatedAt == 0 {
+		entry.CreatedAt = time.Now().Unix()
+	}
+
+	success := 0
+	if entry.Success {
+		success = 1
+	}
+
+	_, err := DB.Exec(`
+		INSERT INTO activity_logs(
+			id, user_id, username, action, entity_type, entity_id, details,
+			method, path, status_code, success, ip_address, user_agent, created_at
+		) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+	`, entry.ID, entry.UserID, entry.Username, entry.Action, entry.EntityType, entry.EntityID, entry.Details,
+		entry.Method, entry.Path, entry.StatusCode, success, entry.IPAddress, entry.UserAgent, entry.CreatedAt)
+	return err
+}
+
+func ListActivityLogs(userID string, includeAll bool, limit, offset int) ([]models.ActivityLogEntry, error) {
+	if DB == nil {
+		return nil, errors.New("db not initialized")
+	}
+	if limit <= 0 {
+		limit = 50
+	}
+	if limit > 100 {
+		limit = 100
+	}
+	if offset < 0 {
+		offset = 0
+	}
+
+	query := `
+		SELECT id, user_id, username, action, entity_type, entity_id, details,
+		       method, path, status_code, success, ip_address, user_agent, created_at
+		FROM activity_logs
+	`
+	args := []interface{}{}
+	if !includeAll {
+		query += " WHERE user_id = ?"
+		args = append(args, userID)
+	}
+	query += " ORDER BY created_at DESC, id DESC LIMIT ? OFFSET ?"
+	args = append(args, limit, offset)
+
+	rows, err := DB.Query(query, args...)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	logs := []models.ActivityLogEntry{}
+	for rows.Next() {
+		var entry models.ActivityLogEntry
+		var success int
+		if err := rows.Scan(
+			&entry.ID, &entry.UserID, &entry.Username, &entry.Action, &entry.EntityType, &entry.EntityID, &entry.Details,
+			&entry.Method, &entry.Path, &entry.StatusCode, &success, &entry.IPAddress, &entry.UserAgent, &entry.CreatedAt,
+		); err != nil {
+			return nil, err
+		}
+		entry.Success = success == 1
+		logs = append(logs, entry)
+	}
+	return logs, rows.Err()
+}
+
 // Users
 func AddUser(user *models.User) error {
 	_, err := DB.Exec("INSERT INTO users(id, username, password, role) VALUES (?, ?, ?, ?)", user.ID, strings.ToLower(user.Username), user.Password, user.Role)

util/util.go

@@ -23,12 +23,19 @@ func GenerateSecret() string {
 	return base64.StdEncoding.EncodeToString(b)
 }
 func GenerateRefreshToken() (string, error) {
+	return GenerateOpaqueToken()
+}
+
+func GenerateOpaqueToken() (string, error) {
 	b := make([]byte, 32)
 	if _, err := rand.Read(b); err != nil {
 		return "", err
 	}
 	return base64.RawURLEncoding.EncodeToString(b), nil
 }
+func EncodeBase64URL(data []byte) string {
+	return base64.RawURLEncoding.EncodeToString(data)
+}
 func HashToken(token string) string {
 	hash := sha256.Sum256([]byte(token))
 	return hex.EncodeToString(hash[:])