ci: smoke test = compileall (server.py raises on import without CALDAV_DATA_PATH)

.gitea/workflows/_ci-common.yaml

@@ -30,5 +30,5 @@ jobs:
           tags: ci-image:${{ github.sha }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
-      - name: Smoke test (container starts)
-        run: docker run --rm --name mcp-ics-smoke-$(hostname) ci-image:${{ github.sha }} python -c "import src.server"
+      - name: Smoke test (compile sanity)
+        run: docker run --rm --name mcp-ics-smoke-$(hostname) ci-image:${{ github.sha }} python -m compileall -q src/