build: 打通 FastAPI 与 Vue 最小工程、依赖与数据库连接

后端入口、配置、Redis 与 Alembic 迁移就位；前端 Vite 工程可安装可构建。

backend/app/__init__.py

@@ -0,0 +1,27 @@
+"""
+Copyright 2024-2026 ChatterMate
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+"""
+
+# Must run before anything imports app.enterprise (see app/core/edition.py).
+from .core import edition as _edition
+
+_edition.apply()
+
+# Before any agno agent runs (see app/core/agno_telemetry.py).
+from .core import agno_telemetry as _agno_telemetry  # noqa: E402
+
+_agno_telemetry.apply()
+
+from .main import app  # noqa: E402