feat: init rssKeeper - RSS 抓取、管理与检索系统

完整功能包括:
- FastAPI 后端 + SQLite + FTS5 全文搜索
- RSS 源管理、自动发现、OPML 导入导出
- 文章抓取、去重、分类、全文检索
- RSS 源健康度监控
- Vue 3 + Element Plus 暗色主题 Web UI
- 对外 REST API 供 AI 分析调用
- Docker + docker-compose 部署

backend/main.py

@@ -0,0 +1,75 @@
+"""rssKeeper - FastAPI 入口"""
+import os
+from contextlib import asynccontextmanager
+from fastapi import FastAPI
+from fastapi.staticfiles import StaticFiles
+from fastapi.responses import FileResponse
+from starlette.middleware.cors import CORSMiddleware
+from database import init_db, SessionLocal
+from scheduler import init_feed_jobs, stop_scheduler
+from routers import feeds, articles, dashboard, external_api
+import config
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    """应用生命周期管理"""
+    # 启动时：初始化数据库 + 注册定时任务
+    init_db()
+    db = SessionLocal()
+    try:
+        init_feed_jobs(db)
+    finally:
+        db.close()
+
+    yield
+
+    # 关闭时：停止调度器
+    stop_scheduler()
+
+
+app = FastAPI(
+    title="rssKeeper",
+    description="RSS 抓取、管理与检索系统",
+    version="1.0.0",
+    lifespan=lifespan,
+)
+
+# CORS
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# API 路由
+app.include_router(feeds.router, prefix=config.API_PREFIX)
+app.include_router(articles.router, prefix=config.API_PREFIX)
+app.include_router(dashboard.router, prefix=config.API_PREFIX)
+app.include_router(external_api.router, prefix=config.EXTERNAL_API_PREFIX)
+
+
+@app.get("/api/health")
+def health_check():
+    """健康检查"""
+    return {"status": "ok", "service": "rssKeeper"}
+
+
+# 静态文件服务（前端构建产物）
+static_dir = os.path.join(config.BASE_DIR, "static")
+if os.path.exists(static_dir):
+    app.mount("/static", StaticFiles(directory=static_dir), name="static")
+
+    @app.get("/{full_path:path}")
+    async def serve_spa(full_path: str):
+        """Vue SPA 路由回退"""
+        # API 路由不走这里
+        if full_path.startswith("api/") or full_path.startswith("docs") or full_path.startswith("openapi.json"):
+            return {"detail": "Not found"}
+
+        index_path = os.path.join(static_dir, "index.html")
+        if os.path.exists(index_path):
+            return FileResponse(index_path)
+        return {"detail": "Frontend not built"}