added more docs

README.md

@@ -6,6 +6,7 @@ MiauInv is a secure, light-weight inventory, stock, and project allocation track
 
 * [Technical Specifications](#technical-specifications)
 * [Architecture Overview](#architecture-overview)
+* [Detailed Documentation](#detailed-documentation)
 * [Configuration](#configuration)
     * [Configuration File (config.yaml)](#configuration-file-configyaml)
     * [Environment Variables](#environment-variables)
@@ -43,6 +44,15 @@ MiauInv splits responsibility cleanly across modularized architecture packages:
 
 ---
 
+---
+
+## Detailed Documentation
+
+For deep dives into specific subsystems, database layouts, and security mechanisms, please refer to the dedicated documentation files:
+
+* **[Database Schema & Integrity](docs/DATABASE.md):** Comprehensive breakdown of the SQLite table structures, fields, and foreign key relations.
+* **[Authentication Architecture](docs/AUTHENTICATION.md):** Detailed explanation of the dual-token rotation flow, JWT lifecycle, and frontend loop protection.
+
 ## Configuration
 
 The system uses a combination of a structural JSON configuration file and environment variables for system runtime flags.