Simplify Quick Start: single docker compose up

- Dockerfile: auto-generate DUMPSTER_SECRET if not set
- compose.yml: remove env_file requirement, use env vars with defaults, share web_assets volume with caddy
- README: Quick Start is now 3 commands (clone, cd, docker compose up)

README.md

@@ -7,29 +7,15 @@ Built for fun, maintained with pride, named with intent.
 ## Quick Start
 
 ```bash
-# Clone
 git clone ssh://git@git.dustin.coffee:2222/hobokenchicken/dumpsterChat.git
 cd dumpsterChat
-
-# Copy and edit environment variables
-cp .env.example .env
-$EDITOR .env
-
-# Start backing services
-docker compose -f docker/compose.yml up -d
-
-# Run migrations
-go run ./cmd/migrate
-
-# Start the server
-go run ./cmd/server
-
-# In another terminal, start the web dev server
-cd web
-npm install
-npm run dev
+docker compose -f docker/compose.yml up
 ```
 
+That's it. Visit `http://localhost` to register and start chatting.
+
+For optional features, copy `.env.example` to `.env` and set Giphy, MinIO, LiveKit, or VAPID keys.
+
 ## Tech Stack
 
 | Layer | Technology |
@@ -126,8 +112,8 @@ See `.env.example` for the full list. Key variables:
 |----------|------------|----------|
 | `DUMPSTER_HOST` | Server bind address | No (default: localhost) |
 | `DUMPSTER_PORT` | Server port | No (default: 8080) |
-| `DUMPSTER_SECRET` | Session signing secret | Yes |
-| `POSTGRES_*` | Database connection | Yes |
+| `DUMPSTER_SECRET` | Session signing secret | No (auto-generated in Docker) |
+| `POSTGRES_*` | Database connection | No (defaults in compose) |
 | `LIVEKIT_*` | Voice/video server | No |
 | `GIPHY_API_KEY` | Giphy API key for GIF search | No |
 | `MINIO_*` | File upload storage | No |