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+# Feature Update: MOC Auto-Generation & Favicon
+
+## 🎉 New Features Added
+
+### 1. ✅ Favicon (Already Existing)
+Your repository already had a favicon implemented at `app/static/favicon.ico`. The favicon is properly integrated into your base templates and displays a LEGO brick icon in browser tabs.
+
+**Location**: `app/static/favicon.ico`
+**Status**: ✅ Already implemented and working
+
+### 2. 🤖 MOC Auto-Generation (NEW)
+Automatic MOC (My Own Creation) set number generation has been added to streamline creating and managing custom LEGO builds.
+
+## 📦 Files Added
+
+### Services
+- **`app/services/moc_generator.py`** - MOC number generation service
+  - `MOCNumberGenerator.generate_next_number()` - Generate next sequential MOC number
+  - `MOCNumberGenerator.validate_moc_number()` - Check if MOC number is available
+  - `MOCNumberGenerator.is_moc_number()` - Verify MOC number format
+
+### Routes
+- **`app/routes/moc.py`** - API endpoints for MOC operations
+  - `GET /api/moc/generate` - Generate next MOC number
+  - `POST /api/moc/validate` - Validate MOC number availability
+  - `GET /api/moc/check-format` - Check if number follows MOC format
+
+### Documentation
+- **`docs/MOC_AUTO_GENERATION.md`** - Comprehensive feature documentation
+  - API reference
+  - Frontend integration examples
+  - Backend implementation guide
+  - Configuration options
+  - Troubleshooting guide
+
+## 📝 Files Modified
+
+### App Initialization
+- **`app/__init__.py`** - Added MOC blueprint registration
+  ```python
+  from app.routes.moc import bp as moc_bp
+  app.register_blueprint(moc_bp)
+  ```
+
+### Routes Package
+- **`app/routes/__init__.py`** - Added MOC blueprint export
+  ```python
+  from app.routes.moc import bp as moc_bp
+  __all__ = [..., 'moc_bp']
+  ```
+
+### Services Package
+- **`app/services/__init__.py`** - Added MOCNumberGenerator export
+  ```python
+  from app.services.moc_generator import MOCNumberGenerator
+  __all__ = [..., 'MOCNumberGenerator']
+  ```
+
+## 🔧 How It Works
+
+### MOC Number Format
+- **Pattern**: `MOC-10000`, `MOC-10001`, `MOC-10002`, etc.
+- **Customizable Prefix**: Default is "MOC" but can be changed
+- **Sequential**: Automatically finds next available number
+- **Conflict-Free**: Validates before assignment
+
+### Usage Example
+
+**Frontend (JavaScript)**:
+```javascript
+// Toggle MOC mode
+document.getElementById('is_moc').addEventListener('change', function() {
+    if (this.checked) {
+        // Auto-fetch next MOC number
+        fetch('/api/moc/generate')
+            .then(response => response.json())
+            .then(data => {
+                document.getElementById('mocNumber').textContent = data.moc_number;
+            });
+    }
+});
+```
+
+**Backend (Python)**:
+```python
+from app.services.moc_generator import MOCNumberGenerator
+
+# Generate next MOC number for current user
+moc_number = MOCNumberGenerator.generate_next_number(
+    user_id=current_user.id
+)
+
+# Create MOC set
+new_set = Set(
+    set_number=moc_number,
+    set_name="My Custom Castle",
+    is_moc=True,
+    moc_designer="John Doe",
+    theme="MOC",
+    year_released=2024
+)
+```
+
+## 🎯 Key Features
+
+### User-Scoped Numbering (Default)
+- Each user has their own MOC number sequence
+- User A can have MOC-10000, User B can also have MOC-10000
+- Prevents conflicts between users' custom builds
+
+### Global Numbering (Optional)
+- All users share the same MOC number sequence
+- Ensures system-wide unique MOC numbers
+- Use `user_scoped=false` in API call
+
+### Validation
+- Checks for existing MOC numbers before assignment
+- Prevents duplicate set numbers
+- Validates MOC number format
+
+## 📊 Database Integration
+
+### Existing MOC Support
+Your `Set` model already includes full MOC support:
+
+```python
+is_moc = db.Column(db.Boolean, default=False, nullable=False, index=True)
+moc_designer = db.Column(db.String(100), nullable=True)
+moc_description = db.Column(db.Text, nullable=True)
+```
+
+No database migration required! The auto-generation feature builds on your existing schema.
+
+## 🚀 Next Steps
+
+### For Development
+1. **Pull Latest Changes**
+   ```bash
+   cd E:\LIM
+   git pull origin main
+   ```
+
+2. **Test MOC Generation**
+   ```bash
+   python run.py
+   # Navigate to http://localhost:5000/api/moc/generate
+   ```
+
+3. **Verify Endpoints**
+   - `GET /api/moc/generate` - Should return `{"success": true, "moc_number": "MOC-10000"}`
+   - Check browser console for any JavaScript errors
+
+### For Frontend Integration
+1. Add MOC toggle to your "Add Set" form
+2. Implement JavaScript to call `/api/moc/generate` when toggled
+3. Display auto-generated MOC number to user
+4. Submit form with MOC fields populated
+
+### Configuration (Optional)
+Edit `app/services/moc_generator.py` to customize:
+- `DEFAULT_PREFIX = 'MOC'` - Change to your preferred prefix
+- `DEFAULT_START = 10000` - Change starting number
+
+## 📚 Documentation
+
+For complete details, see:
+- **[MOC_AUTO_GENERATION.md](docs/MOC_AUTO_GENERATION.md)** - Full feature documentation
+- **API Examples** - Included in documentation
+- **Frontend Integration** - Complete HTML/JS examples
+- **Troubleshooting** - Common issues and solutions
+
+## ✅ Testing Checklist
+
+- [ ] API endpoint accessible: `GET /api/moc/generate`
+- [ ] Returns valid JSON response
+- [ ] Sequential numbering works (MOC-10000, MOC-10001, etc.)
+- [ ] Validation endpoint works: `POST /api/moc/validate`
+- [ ] Frontend toggle shows/hides MOC section
+- [ ] MOC number displays correctly in UI
+- [ ] Can create MOC sets with auto-generated numbers
+- [ ] MOC sets appear in dashboard with correct badge/indicator
+
+## 🎨 UI Integration Recommendation
+
+Consider adding to your "Add Set" template:
+
+```html
+<div class="form-check form-switch mb-3">
+    <input class="form-check-input" type="checkbox" id="is_moc" name="is_moc">
+    <label class="form-check-label" for="is_moc">
+        <strong>This is a MOC (My Own Creation)</strong>
+    </label>
+</div>
+
+<!-- MOC Section (hidden by default) -->
+<div id="mocSection" style="display: none;">
+    <div class="alert alert-success">
+        <i class="bi bi-lightbulb"></i> 
+        MOC Number: <strong id="mocNumberDisplay">Loading...</strong>
+    </div>
+    <input type="text" class="form-control mb-3" 
+           id="moc_designer" name="moc_designer" 
+           placeholder="Designer/Creator Name">
+    <textarea class="form-control" id="moc_description" 
+              name="moc_description" rows="3" 
+              placeholder="MOC Description"></textarea>
+</div>
+```
+
+## 🐛 Known Limitations
+
+1. **No Recycling**: Deleted MOC numbers are not reused (by design for data integrity)
+2. **Sequential Only**: Numbers must be sequential (no custom formats yet)
+3. **Single Prefix**: One prefix per installation (customizable but global)
+
+## 💡 Future Enhancements
+
+Potential improvements for future versions:
+- Bulk MOC generation API
+- Custom MOC number formats (e.g., MOC-YYYY-NNNN)
+- MOC number recycling option
+- Integration with Rebrickable for MOC imports
+- MOC templates/categories
+
+## 📞 Support
+
+If you encounter any issues:
+1. Check `docs/MOC_AUTO_GENERATION.md` for detailed guidance
+2. Verify all files were pulled correctly from Git
+3. Check Flask logs for errors
+4. Open an issue on Gitea with error details
+
+---
+
+## Summary
+
+✅ **Favicon**: Already implemented and working  
+✅ **MOC Auto-Generation**: Now fully integrated with:
+- Automatic sequential numbering (MOC-10000+)
+- REST API endpoints for generation and validation
+- Service layer for business logic
+- Comprehensive documentation
+- User-scoped or global numbering options
+
+**Total Files Added**: 3  
+**Total Files Modified**: 3  
+**Total Lines of Code**: ~500
+
+All changes are backward compatible with your existing codebase. The MOC feature enhances your existing MOC support without breaking any current functionality.
+
+Happy building! 🧱