Document Agap infrastructure and services

- Add CLAUDE.md with Gitea integration, development guidelines, and wiki interaction instructions
- Add comprehensive README.md with service overview, quick start, and configuration details
- Add service directories: gitea/, openai/, immich-app/, and setup scripts (install-cuda.sh, nvidia-docker-install.sh)
- Update docker-compose.yml structure and immich configuration
- Include restore example script for Immich database backups

This repository now serves as the source of truth for Docker Compose configurations and deployment automation for Agap home server services (Immich, Gitea, Open WebUI).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

README.md

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+# Agap Home Server
+
+Docker Compose configurations for the Agap self-hosted home server infrastructure.
+
+## Services
+
+- **Immich** (`immich-app/`) — Photo management and backup (port 2283)
+- **Gitea** (`gitea/`) — Self-hosted Git server with web UI (port 3000, SSH 222)
+- **Open WebUI** (`openai/`) — AI chat interface with Ollama, GPU-accelerated (port 3125)
+
+## Quick Start
+
+### Start Immich (main service)
+
+```bash
+docker compose up -d
+```
+
+### Start Gitea (from gitea/ directory)
+
+```bash
+cd gitea
+docker compose up -d
+```
+
+### Start Open WebUI (from openai/ directory)
+
+```bash
+cd openai
+docker compose up -d
+```
+
+## Configuration
+
+Environment variables are in the root `.env` file for Immich:
+- `UPLOAD_LOCATION` — where photo originals are stored
+- `THUMB_LOCATION` — thumbnail cache directory
+- `ENCODED_VIDEO_LOCATION` — transcoded video cache
+- `DB_DATA_LOCATION` — Postgres database directory
+- `DB_PASSWORD` — Postgres password
+
+## Storage
+
+Media is stored on:
+- `/mnt/media/upload` — Immich originals
+- `/mnt/ssd1/media/` — Immich thumbnails, encoded video, and Postgres database
+- `/mnt/misc/gitea` — Gitea repositories and data
+
+## GPU Support
+
+For GPU acceleration (Open WebUI/Ollama, Immich ML):
+
+1. Install NVIDIA Docker runtime: `sudo ./nvidia-docker-install.sh`
+2. Install CUDA toolkit: `./install-cuda.sh`
+
+## Documentation
+
+See [CLAUDE.md](./CLAUDE.md) for detailed developer instructions and Gitea wiki integration guidelines.
+
+See the [Gitea wiki](http://localhost:3000/alvis/AgapHost/wiki) for infrastructure documentation (storage, network, services setup).