infra: migrate deployment to Coolify with Garage S3

- Remove docker-compose files (Coolify manages services individually)
- Replace MinIO with Garage (S3-compatible, actively maintained)
- Add CI deploy job: build+push :develop image on every green Develop push
- Add Coolify webhook trigger for automatic redeployment
- Update README, .env.example, and storage references
- Rename migrate script to provider-agnostic name

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

README.md

@@ -1,6 +1,6 @@
 # GearBox
 
-A single-user web app for managing gear collections (bikepacking, sim racing, etc.), tracking weight and price, and planning purchases through research threads.
+A web app for managing gear collections (bikepacking, sim racing, etc.), tracking weight and price, and planning purchases through research threads.
 
 ## Features
 
@@ -10,113 +10,65 @@ A single-user web app for managing gear collections (bikepacking, sim racing, et
 - Research threads for comparing candidates before buying
 - Image uploads for items and candidates
 
-## Quick Start (Docker)
+## Deployment
 
-### Docker Compose (recommended)
+GearBox is deployed via [Coolify](https://coolify.io/) as a Docker image with separate services for dependencies.
 
-Create a `docker-compose.yml`:
+**Required services:**
+- **PostgreSQL 16** — primary database
+- **Garage** (or any S3-compatible storage) — image uploads
+- **Logto** — OIDC authentication
 
-```yaml
-services:
-  gearbox:
-    image: gitea.jeanlucmakiola.de/makiolaj/gearbox:latest
-    container_name: gearbox
-    ports:
-      - "3000:3000"
-    environment:
-      - NODE_ENV=production
-      - DATABASE_PATH=./data/gearbox.db
-    volumes:
-      - gearbox-data:/app/data
-      - gearbox-uploads:/app/uploads
-    healthcheck:
-      test: ["CMD", "bun", "-e", "fetch('http://localhost:3000/api/health').then(r=>r.ok?process.exit(0):process.exit(1)).catch(()=>process.exit(1))"]
-      interval: 30s
-      timeout: 5s
-      start_period: 10s
-      retries: 3
-    restart: unless-stopped
+**GearBox image:** `gitea.jeanlucmakiola.de/makiolaj/gearbox:latest`
 
-volumes:
-  gearbox-data:
-  gearbox-uploads:
-```
-
-Then run:
-
-```bash
-docker compose up -d
-```
-
-GearBox will be available at `http://localhost:3000`.
-
-### Docker
-
-```bash
-docker run -d \
-  --name gearbox \
-  -p 3000:3000 \
-  -e NODE_ENV=production \
-  -e DATABASE_PATH=./data/gearbox.db \
-  -v gearbox-data:/app/data \
-  -v gearbox-uploads:/app/uploads \
-  --restart unless-stopped \
-  gitea.jeanlucmakiola.de/makiolaj/gearbox:latest
-```
-
-## Data
-
-All data is stored in two Docker volumes:
-
-- **gearbox-data** -- SQLite database
-- **gearbox-uploads** -- uploaded images
-
-Back up these volumes to preserve your data.
+See `.env.example` for required environment variables.
 
 ## Updating
 
-```bash
-docker compose pull
-docker compose up -d
-```
+CI pushes a new Docker image on every release. Coolify auto-deploys when the image tag updates.
 
-Database migrations run automatically on startup.
+Database migrations run automatically on startup via `entrypoint.sh`.
 
 ## Tech Stack
 
 - **Runtime & Package Manager:** [Bun](https://bun.sh)
 - **Frontend:** React 19, Vite, TanStack Router, TanStack Query, Tailwind CSS v4, Zustand
-- **Backend:** Hono, Drizzle ORM, SQLite (`bun:sqlite`)
+- **Backend:** Hono, Drizzle ORM, PostgreSQL
+- **Storage:** S3-compatible (Garage, Cloudflare R2, AWS S3)
+- **Auth:** OIDC via Logto
 
-## Local Development Setup
+## Local Development
 
 ### Prerequisites
 
-You must have [Bun](https://bun.sh/) installed on your machine. Docker is not required for local development.
+- [Bun](https://bun.sh/) installed
+- PostgreSQL, Logto, and Garage running (via Coolify test instance or locally)
 
-### Installation
+### Setup
 
-1. Install all dependencies:
+1. Install dependencies:
    ```bash
    bun install
    ```
 
-2. Initialize the local SQLite database (`gearbox.db`):
+2. Copy and configure environment:
    ```bash
-   bun run db:push
+   cp .env.example .env
+   # Edit .env with your service URLs and credentials
    ```
 
 3. Start the development servers:
    ```bash
    bun run dev
    ```
-   This single command will start both the Vite frontend server (port `5173`) and the Hono backend server (port `3000`) concurrently. 
+   Starts both the Vite frontend (port `5173`) and Hono backend (port `3000`).
 
-Open [http://localhost:5173](http://localhost:5173) in your browser to view the app.
+Open [http://localhost:5173](http://localhost:5173) in your browser.
 
-## Additional Commands
+## Commands
 
-- `bun run build` — Build the production assets into `dist/client/`
-- `bun test` — Run the test suite
-- `bun run lint` — Check formatting and lint rules using Biome
-- `bun run db:generate` — Generate Drizzle migrations after making schema changes
+- `bun run dev` — Start dev servers (frontend + backend)
+- `bun run build` — Build production assets
+- `bun test` — Run tests
+- `bun run lint` — Lint with Biome
+- `bun run db:generate` — Generate Drizzle migrations after schema changes