first commit

backend/app/main.py

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+"""FastAPI 应用入口"""
+
+from pathlib import Path
+
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import FileResponse
+from fastapi.staticfiles import StaticFiles
+
+from app.database import init_database
+from app.routes import regimes, accounts, strategies, matches, match
+
+# 前端构建产物目录（生产部署时由 PM2 单端口托管）
+FRONTEND_DIST = Path(__file__).resolve().parent.parent.parent / "frontend" / "dist"
+
+app = FastAPI(
+    title="加密货币前置匹配系统",
+    description="大盘-周期-阶段-强弱-方向-账户-策略前置匹配（纯本地，无登录）",
+    version="1.0.0",
+)
+
+# 允许前端跨域（本地开发）
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_credentials=True,
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# 注册 API 路由
+app.include_router(regimes.router)
+app.include_router(accounts.router)
+app.include_router(strategies.router)
+app.include_router(matches.router)
+app.include_router(match.router)
+
+
+@app.on_event("startup")
+def on_startup():
+    """启动时初始化数据库"""
+    init_database()
+
+
+@app.get("/api/health")
+def health():
+    return {"status": "ok", "message": "加密货币前置匹配系统运行中"}
+
+
+def _mount_frontend():
+    """生产环境：托管 Vue 前端静态资源，支持 SPA 路由"""
+    if not FRONTEND_DIST.exists():
+        return
+
+    assets_dir = FRONTEND_DIST / "assets"
+    if assets_dir.exists():
+        app.mount("/assets", StaticFiles(directory=assets_dir), name="assets")
+
+    @app.get("/")
+    async def serve_index():
+        return FileResponse(FRONTEND_DIST / "index.html")
+
+    @app.get("/{path:path}")
+    async def serve_spa(path: str):
+        # API 路径不走 SPA 回退
+        if path.startswith("api"):
+            return {"detail": "Not Found"}
+        file = FRONTEND_DIST / path
+        if file.is_file():
+            return FileResponse(file)
+        return FileResponse(FRONTEND_DIST / "index.html")
+
+
+_mount_frontend()