Final: Complete modernization - Option 1 deployment, unified persistence, migration scripts

- Implement Docker image-based deployment (Option 1)
  * Code immutable in image, no volume override
  * Eliminated init-data.sh manual step
  * Simplified deployment process

- Unified persistence in data/ folder
  * Moved nginx.conf and nginx-custom-domains.conf to data/
  * All runtime configs and data in single location
  * Clear separation: repo (source) vs data/ (runtime)

- Archive legacy features
  * Groups blueprint and templates removed
  * Legacy playlist routes redirected to content area
  * Organized in old_code_documentation/

- Added network migration support
  * New migrate_network.sh script for IP changes
  * Regenerates SSL certs for new IP
  * Updates database configuration
  * Tested workflow: clone → deploy → migrate

- Enhanced deploy.sh
  * Creates data directories
  * Copies nginx configs from repo to data/
  * Validates file existence before deployment
  * Prevents incomplete deployments

- Updated documentation
  * QUICK_DEPLOYMENT.md shows 4-step workflow
  * Complete deployment workflow documented
  * Migration procedures included

- Production ready deployment workflow:
  1. Clone & setup (.env configuration)
  2. Deploy (./deploy.sh)
  3. Migrate network (./migrate_network.sh if needed)
  4. Normal operations (docker compose restart)

old_code_documentation/NGINX_CONFIG_MIGRATION.md

@@ -0,0 +1,111 @@
+# Nginx Config Files Moved to Data Folder
+
+**Date:** January 17, 2026  
+**Purpose:** Complete persistence isolation - all Docker runtime files in `data/` folder
+
+## What Changed
+
+### Files Moved
+- `./nginx.conf` → `./data/nginx.conf`
+- `./nginx-custom-domains.conf` → `./data/nginx-custom-domains.conf`
+
+### docker-compose.yml Updated
+```yaml
+volumes:
+  - ./data/nginx.conf:/etc/nginx/nginx.conf:ro                    # ✅ NOW in data/
+  - ./data/nginx-custom-domains.conf:/etc/nginx/conf.d/custom-domains.conf:rw  # ✅ NOW in data/
+  - ./data/nginx-ssl:/etc/nginx/ssl:ro
+  - ./data/nginx-logs:/var/log/nginx
+  - ./data/certbot:/var/www/certbot:ro
+```
+
+## Complete Data Folder Structure (Now Unified)
+
+```
+/data/
+├── app/                           # Flask application (in Docker image, not mounted)
+├── instance/                      # Database & config
+│   ├── digiserver.db
+│   └── server.log
+├── uploads/                       # User uploads
+│   └── app/static/uploads/...
+├── nginx.conf                     # ✅ Nginx main config
+├── nginx-custom-domains.conf      # ✅ Custom domain config
+├── nginx-ssl/                     # SSL certificates
+│   ├── cert.pem
+│   └── key.pem
+├── nginx-logs/                    # Nginx logs
+│   ├── access.log
+│   └── error.log
+└── certbot/                       # Let's Encrypt certificates
+```
+
+## Benefits
+
+✅ **Unified Persistence:** All runtime configuration in `/data`
+✅ **Easy Backup:** Single `data/` folder contains everything
+✅ **Consistent Permissions:** All files managed together
+✅ **Clean Repository:** Root directory only has source code
+✅ **Deployment Clarity:** Clear separation: source (`./app`) vs runtime (`./data`)
+
+## Testing Results
+
+- ✅ Nginx started successfully with new config paths
+- ✅ HTTP requests working (port 80)
+- ✅ HTTPS requests working (port 443)
+- ✅ No configuration errors
+
+## Updating Existing Deployments
+
+If you have an existing deployment:
+
+```bash
+# 1. Copy configs to data/
+cp nginx.conf data/nginx.conf
+cp nginx-custom-domains.conf data/nginx-custom-domains.conf
+
+# 2. Update docker-compose.yml
+# (Already updated - change volume paths from ./ to ./data/)
+
+# 3. Restart nginx
+docker-compose restart nginx
+
+# 4. Verify
+curl http://localhost
+curl -k https://localhost
+```
+
+## Important Notes
+
+### If You Edit Nginx Config
+```bash
+# Edit the config in data/, NOT in root
+nano data/nginx.conf
+nano data/nginx-custom-domains.conf
+
+# Then restart nginx
+docker-compose restart nginx
+```
+
+### Root Files Now Optional
+The old `nginx.conf` and `nginx-custom-domains.conf` in the root can be:
+- **Deleted** (cleanest - all runtime files in data/)
+- **Kept** (reference/backup - but not used by containers)
+
+### Recommendations
+- Delete root nginx config files for cleaner repository
+- Keep in `.gitignore` if you want to preserve them as backups
+- All active configs now in `data/` folder which can be `.gitignore`d
+
+## Related Changes
+
+Part of ongoing simplification:
+1. ✅ Option 1 Implementation - Dockerfile-based code deployment
+2. ✅ Groups feature archived
+3. ✅ Legacy playlist routes simplified
+4. ✅ Nginx configs now in data/ folder
+
+All contributing to:
+- Cleaner repository structure
+- Complete persistence isolation
+- Production-ready deployment model