feat: AI余额定时自动同步（CLI脚本+systemd每日timer+批量同步接口+前端按钮）

app/main.py

@@ -19,7 +19,7 @@ from sqlmodel import Session
 from app.core.config import settings
 from app.core.seed import seed_providers
 from app.database import assets_engine, init_db
-from app.routers import agent, assets, monitor, providers, stats
+from app.routers import agent, assets, monitor, providers, stats, sync
 
 BASE_DIR = Path(__file__).resolve().parent.parent
 STATIC_DIR = BASE_DIR / "static"
@@ -53,6 +53,7 @@ app.include_router(providers.router)
 app.include_router(stats.router)
 app.include_router(agent.router)
 app.include_router(monitor.router)
+app.include_router(sync.router)
 
 app.mount("/static", StaticFiles(directory=STATIC_DIR), name="static")