Run from a published image; move source build to docker-compose.build.yaml

docker-compose.yaml now pulls git.goyban.com/goyban/whattodo so it can be used
without the source. publish.sh builds the committed version and pushes it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docker-compose.yaml

@@ -0,0 +1,20 @@
+# Runs the published image; no source code needed. Put this file and a .env (from .env.example) in a folder, then:
+#   docker compose up -d
+# Update to the newest published version:
+#   docker compose pull && docker compose up -d
+# To build from source instead, use docker-compose.build.yaml.
+services:
+  whattodo:
+    image: git.goyban.com/goyban/whattodo:${WHATTODO_TAG:-latest}
+    restart: unless-stopped
+    env_file: .env
+    ports:
+      # BIND_ADDR=127.0.0.1 -> this computer only; 0.0.0.0 -> also reachable from your phone on the LAN.
+      - "${BIND_ADDR:-127.0.0.1}:${PORT:-8080}:8000"
+    volumes:
+      - ./data:/data
+    healthcheck:
+      test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/api/health')"]
+      interval: 30s
+      timeout: 5s
+      retries: 3