优化任务列表性能和本地登录代理

web/backend/main.py

@@ -6,6 +6,7 @@ import uvicorn
 from contextlib import asynccontextmanager
 from fastapi import FastAPI, Request
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.middleware.gzip import GZipMiddleware
 from fastapi.staticfiles import StaticFiles
 from fastapi.responses import FileResponse
 from starlette.middleware.base import BaseHTTPMiddleware
@@ -66,6 +67,9 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
+# 压缩 JSON 和静态资源响应，避免任务列表轮询反复传输大体积文本。
+app.add_middleware(GZipMiddleware, minimum_size=1024)
+
 
 # 安全响应头中间件
 class SecurityHeadersMiddleware(BaseHTTPMiddleware):
@@ -74,6 +78,9 @@ class SecurityHeadersMiddleware(BaseHTTPMiddleware):
         response.headers["X-Content-Type-Options"] = "nosniff"
         response.headers["X-Frame-Options"] = "DENY"
         response.headers["Referrer-Policy"] = "strict-origin-when-cross-origin"
+        if request.url.path.startswith("/assets/"):
+            # Vite 产物文件名带 hash，可以长期缓存。
+            response.headers["Cache-Control"] = "public, max-age=31536000, immutable"
         return response