Update Self-Hosting: add bot and webhook instructions, update env vars

Self-Hosting.md

@@ -21,28 +21,33 @@ This starts:
 Copy `.env.example` to `.env` and set:
 
 ```env
+# App
 DUMPSTER_HOST=chat.your.domain
 DUMPSTER_PORT=8080
-DUMPSTER_SECRET=change-me
+DUMPSTER_SECRET=<random-secret>
 
+# Database
 POSTGRES_HOST=postgres
 POSTGRES_PORT=5432
 POSTGRES_USER=dumpster
-POSTGRES_PASSWORD=change-me
+POSTGRES_PASSWORD=<random-password>
+POSTGRES_DB=dumpster
 
+# Cache
 VALKEY_URL=redis://valkey:6379
 
+# File storage (optional)
 MINIO_ENDPOINT=minio:9000
-MINIO_ACCESS_KEY=dumpster
-MINIO_SECRET_KEY=change-me
+MINIO_ACCESS_KEY=<random>
+MINIO_SECRET_KEY=<random>
 MINIO_BUCKET=dumpster-files
 
-LIVEKIT_API_KEY=devkey
-LIVEKIT_API_SECRET=change-me
+# Voice/video (optional)
+LIVEKIT_API_KEY=<random>
+LIVEKIT_API_SECRET=<random>
 
-VAPID_PUBLIC_KEY=...
-VAPID_PRIVATE_KEY=...
-VAPID_SUBJECT=mailto:admin@your.domain
+# Giphy (optional)
+GIPHY_API_KEY=<your-key>
 ```
 
 ## Ports required
@@ -56,6 +61,22 @@ VAPID_SUBJECT=mailto:admin@your.domain
 | 50000-50100/udp | LiveKit relay |
 | 10000-20000/udp | coturn media relay |
 
+## First run
+
+```bash
+# Start services
+docker compose -f docker/compose.yml up -d
+
+# Run migrations (creates tables)
+go run ./cmd/migrate up
+
+# Start the server
+go run ./cmd/server
+
+# In dev, start the web frontend separately
+cd web && npm install && npm run dev
+```
+
 ## Production TLS
 
 For production, update `docker/Caddyfile`:
@@ -64,10 +85,33 @@ For production, update `docker/Caddyfile`:
 chat.your.domain {
     reverse_proxy /api/* app:8080
     reverse_proxy /ws app:8080
-    reverse_proxy /livekit/* livekit:7880
+    reverse_proxy /ws/bot app:8080
+    reverse_proxy /webhooks/* app:8080
+    reverse_proxy /files/* app:8080
     root * /srv/web
     file_server
 }
 ```
 
 Remove `auto_https off` and Caddy will fetch Let's Encrypt certificates.
+
+## Adding bots
+
+1. Create a bot via the web UI (`/bots` page)
+2. Copy the bot token (shown once)
+3. Add the bot to a server
+4. Run the bot:
+   ```bash
+   BOT_TOKEN=<token> go run ./examples/modbot/main.go
+   ```
+
+## Webhooks
+
+1. Create a webhook via the API or web UI
+2. Copy the webhook URL (includes token)
+3. POST to the URL:
+   ```bash
+   curl -X POST https://chat.your.domain/webhooks/<id>/<token> \
+     -H "Content-Type: application/json" \
+     -d '{"content": "Hello from webhook!", "username": "GitHub"}'
+   ```