fix: use hammer.donovankelly.xyz for all gateway access (HQ-21)

- Single domain for hooks + WebSocket (path-based routing)
- No need for ws.hammer or hooks.hammer subdomains
- Caddy proxies everything to gateway on this VPS

docker-compose.dokploy.yml

@@ -23,7 +23,7 @@ services:
       BETTER_AUTH_SECRET: ${BETTER_AUTH_SECRET}
       BETTER_AUTH_URL: https://dash.donovankelly.xyz
       COOKIE_DOMAIN: .donovankelly.xyz
-      CLAWDBOT_HOOK_URL: ${CLAWDBOT_HOOK_URL:-https://hooks.hammer.donovankelly.xyz/hooks/agent}
+      CLAWDBOT_HOOK_URL: ${CLAWDBOT_HOOK_URL:-https://hammer.donovankelly.xyz/hooks/agent}
       CLAWDBOT_HOOK_TOKEN: ${CLAWDBOT_HOOK_TOKEN}
       PORT: "3100"
     depends_on:
@@ -35,7 +35,7 @@ services:
       context: ./frontend
       dockerfile: Dockerfile
       args:
-        VITE_WS_URL: ${VITE_WS_URL:-wss://ws.hammer.donovankelly.xyz}
+        VITE_WS_URL: ${VITE_WS_URL:-wss://hammer.donovankelly.xyz}
         VITE_WS_TOKEN: ${VITE_WS_TOKEN}
     ports:
       - "80"