Initial commit: potluck signup app

Go + chi + SQLite + HTMX with SSE live updates.
Soft Brutalism design, emoji picker, Docker deploy.

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

compose.yaml

@@ -0,0 +1,11 @@
+services:
+  bbq:
+    build: .
+    restart: unless-stopped
+    ports:
+      - "127.0.0.1:8090:8080"
+    volumes:
+      - bbq-data:/data
+
+volumes:
+  bbq-data: