baseline: 批次A-D 成果 + membership 半成品（测试红）

.dockerignore

@@ -0,0 +1,27 @@
+# Local environments and generated dependencies
+.git
+.gitignore
+**/.env
+**/.venv
+**/venv
+**/__pycache__
+**/*.py[cod]
+**/.pytest_cache
+frontend/node_modules
+backend/.pytest_cache
+
+# Runtime and local database state
+backend/db.sqlite3
+backend/staticfiles
+backend/media
+backend/*.log
+
+# Frontend build output is produced by the Docker multi-stage builder
+frontend/dist
+backend/frontend_dist
+
+# Editor and OS files
+.vscode
+.idea
+.DS_Store
+Thumbs.db