first commit

main.py

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+import uvicorn
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+from src.routers import chat
+
+app_server = FastAPI(
+    title="Gemini Furniture Designer API",
+    description="基于 LangGraph + Gemini 2.0 Flash 的家具设计 Agent 接口",
+    version="1.0.0"
+)
+
+# 配置跨域，方便前端调用
+app_server.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+# 包含路由
+app_server.include_router(chat.router)
+
+
+@app_server.get("/")
+async def root():
+    return {"message": "Furniture Design Agent API is running."}
+
+
+if __name__ == "__main__":
+    uvicorn.run("main:app_server", host="0.0.0.0", port=7777, reload=True)