feat: fpw plugins, validation/crawl perf, WS stats, test DB isolation

- Add Free_Proxy_Website-style fpw_* plugins and register them
- Per-plugin crawl timeout (crawl_timeout_seconds=120); remove global crawl_timeout setting
- Validator: fix connect vs total timeout on save; SOCKS session LRU cache; drop redundant semaphore
- Validation handler uses single DB connection; batch upsert after crawl; WorkerPool put_nowait
- Remove unused max_retries from settings API/UI; settings maintenance SQL + init_db cleanup of deprecated keys
- WebSocket dashboard stats; ProxyList pool_filter and API alignment
- POST /api/proxies/delete-one for IPv6-safe deletes; task poll stops on 404
- pytest uses PROXYPOOL_DB_PATH=db/proxies.test.sqlite so tests do not wipe production DB
- .gitignore: explicit proxies.test.sqlite patterns; fix plugin_service ValidationException import

Made-with: Cursor

app/api/routes/proxies.py

@@ -5,7 +5,8 @@ from fastapi.responses import StreamingResponse
 
 from app.services.proxy_service import ProxyService
 from app.services.scheduler_service import SchedulerService
-from app.models.schemas import ProxyListRequest, BatchDeleteRequest
+from app.services.dashboard_stats import get_dashboard_stats
+from app.models.schemas import ProxyListRequest, BatchDeleteRequest, ProxyDeleteItem
 from app.api.deps import get_proxy_service, get_scheduler_service
 from app.api.common import success_response, format_proxy
 from app.core.exceptions import ProxyPoolException, ProxyNotFoundException
@@ -15,11 +16,9 @@ router = APIRouter(prefix="/api/proxies", tags=["proxies"])
 
 @router.get("/stats")
 async def get_stats(
-    proxy_service: ProxyService = Depends(get_proxy_service),
     scheduler_service: SchedulerService = Depends(get_scheduler_service),
 ):
-    stats = await proxy_service.get_stats()
-    stats["scheduler_running"] = scheduler_service.running
+    stats = await get_dashboard_stats(scheduler_service.running)
     return success_response("获取统计信息成功", stats)
 
 
@@ -36,6 +35,7 @@ async def list_proxies(
         max_score=request.max_score,
         sort_by=request.sort_by,
         sort_order=request.sort_order,
+        pool_filter=request.pool_filter,
     )
     return success_response(
         "获取代理列表成功",
@@ -75,6 +75,16 @@ async def export_proxies(
     )
 
 
+@router.post("/delete-one")
+async def delete_proxy_one(
+    item: ProxyDeleteItem,
+    service: ProxyService = Depends(get_proxy_service),
+):
+    """JSON 删除（推荐）：IPv6 等含冒号 IP 不受路径分段影响。"""
+    await service.delete_proxy(item.ip, item.port)
+    return success_response("删除代理成功")
+
+
 @router.delete("/{ip}/{port}")
 async def delete_proxy(ip: str, port: int, service: ProxyService = Depends(get_proxy_service)):
     await service.delete_proxy(ip, port)