docs: add numerous README.md

docker/stacks/immich/README.md

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+# Immich Stack
+
+A high-performance photo and video management solution that makes organizing and sharing your media collection effortless.
+
+## Services Overview
+
+- **immich-server**: Main application server providing web interface and API
+- **immich-machine-learning**: AI-powered features for face recognition, object detection, and smart search
+- **redis**: In-memory data store for caching and session management
+- **database**: PostgreSQL database with vector extensions for ML features
+- **backup-files**: Automated file backups using resticprofile with AWS S3
+- **backup-database**: Automated PostgreSQL database dumps
+
+## Key Features
+
+- **Smart Photo Management**: AI-powered face recognition, object detection, and duplicate detection
+- **Mobile Apps**: Native iOS and Android apps with automatic photo backup
+- **Video Support**: Hardware-accelerated video transcoding and streaming
+- **Sharing**: Secure photo and album sharing with customizable permissions
+- **Search**: Powerful search capabilities using AI and metadata
+- **Multi-user**: Support for multiple users with individual libraries
+- **Backup**: Automated backups to AWS S3 for both files and database
+
+## Links & Documentation
+
+- **Official Website**: https://immich.app/
+- **GitHub Repository**: https://github.com/immich-app/immich
+- **Documentation**: https://immich.app/docs/overview/introduction
+- **Docker Hub**: https://hub.docker.com/r/immich-app/immich-server
+- **Mobile Apps**:
+  - [iOS App Store](https://apps.apple.com/us/app/immich/id1613945652)
+  - [Android Play Store](https://play.google.com/store/apps/details?id=app.alextran.immich)
+
+## Configuration
+
+### Environment Variables
+Copy `stack.env` to `stack.env.real` and configure:
+
+- `IMMICH_VERSION`: Docker image version (default: release)
+- `UPLOAD_LOCATION`: Path for photo/video storage
+- `DB_*`: PostgreSQL database credentials
+- `TZ`: Timezone
+- `TRAEFIK_DOMAIN`: Domain for web access
+- `AWS_*`: AWS S3 credentials for backups
+- `SERVICE_DATA_ROOT_PATH`: Base path for service data
+
+### Network Access
+- **Web Interface**: Accessible via Traefik at configured domain
+- **Port**: 2283 (internal Docker port 3001)
+- **Mobile Apps**: Connect using the configured domain
+
+## Backup Strategy
+
+**Database**: Hourly PostgreSQL dumps with 2-hour retention
+
+**Files**: Automated S3 backups of uploaded photos/videos using resticprofile
+
+## Dependencies
+
+- External Traefik reverse proxy network
+- AWS S3 bucket for backups