Add model-redis package references to documentation

- Added ORM reference in architecture.md (Redis section)
- Added Data Models section in contributing.md with example
- Updated README.md to mention model-redis in Architecture
- Linked to https://www.npmjs.com/package/model-redis for more info

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

README.md

@@ -147,7 +147,7 @@ The system consists of three main components:
    - Host lookup tree with wildcard matching
    - User authentication and authorization
 
-3. **Redis** - Data store
+3. **Redis** - Data store (using [model-redis](https://www.npmjs.com/package/model-redis) ORM)
    - Host configurations
    - User accounts and tokens
    - SSL certificate storage

docs/architecture.md

@@ -105,6 +105,8 @@ nodejs/
 
 ### Redis (Data Store)
 
+**ORM:** [model-redis](https://www.npmjs.com/package/model-redis) - A lightweight Redis ORM for Node.js with schema validation, relationships, and automatic key management.
+
 **Stored Data:**
 - Host configurations (domain, IP, port, SSL settings)
 - User accounts and hashed passwords

docs/contributing.md

@@ -248,6 +248,28 @@ When you open a PR:
 4. Review from maintainers
 5. Merge to master
 
+## Data Models
+
+The project uses [model-redis](https://www.npmjs.com/package/model-redis) as the ORM for Redis data storage. All models extend the `Table` class and use a declarative schema via `_keyMap`.
+
+**Example Model:**
+```javascript
+const Table = require('../utils/redis_model');
+
+class Host extends Table {
+    static _key = 'host';  // Primary key field
+    static _keyMap = {
+        'host': {isRequired: true, type: 'string', min: 3, max: 500},
+        'ip': {isRequired: true, type: 'string', min: 3, max: 500},
+        'targetPort': {isRequired: true, type: 'number', min: 0, max: 65535},
+        'forcessl': {default: true, type: 'boolean'},
+        'created_on': {default: () => Date.now(), type: 'number'}
+    };
+}
+```
+
+**Learn more:** [model-redis documentation](https://www.npmjs.com/package/model-redis)
+
 ## Adding Features
 
 ### Adding a DNS Provider