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

tests/integration/test_plugins_api.py

@@ -1,6 +1,8 @@
 """插件 API 集成测试 - 测试 /api/plugins/* 所有接口"""
 import pytest
 
+from tests.task_utils import poll_task_until_terminal
+
 
 class TestPluginsAPI:
     """测试插件相关 API"""
@@ -116,10 +118,11 @@ class TestPluginsAPI:
         data = response.json()
         assert data["code"] == 200
 
+    @pytest.mark.network
+    @pytest.mark.slow
     @pytest.mark.asyncio
     async def test_crawl_plugin(self, client):
         """测试 POST /api/plugins/{id}/crawl - 异步任务模式"""
-        import asyncio
         response = await client.get("/api/plugins")
         plugins = response.json()["data"]["plugins"]
         if not plugins:
@@ -133,18 +136,11 @@ class TestPluginsAPI:
         assert "task_id" in data["data"]
         
         task_id = data["data"]["task_id"]
-        # 轮询任务状态
-        task_data = None
-        for _ in range(10):
-            await asyncio.sleep(0.3)
-            res = await client.get(f"/api/tasks/{task_id}")
-            assert res.status_code == 200
-            task_data = res.json()["data"]
-            if task_data["status"] in ("completed", "failed", "cancelled"):
-                break
-        
+        task_data = await poll_task_until_terminal(
+            client, task_id, max_rounds=140, interval=0.5
+        )
         assert task_data is not None
-        assert task_data["status"] in ("completed", "cancelled")
+        assert task_data["status"] in ("completed", "failed", "cancelled")
 
     @pytest.mark.asyncio
     async def test_crawl_nonexistent_plugin(self, client):
@@ -152,10 +148,11 @@ class TestPluginsAPI:
         response = await client.post("/api/plugins/nonexistent_plugin/crawl")
         assert response.status_code == 404
 
+    @pytest.mark.network
+    @pytest.mark.slow
     @pytest.mark.asyncio
     async def test_crawl_all_plugins(self, client):
         """测试 POST /api/plugins/crawl-all - 异步任务模式"""
-        import asyncio
         response = await client.post("/api/plugins/crawl-all")
         assert response.status_code == 200
         data = response.json()
@@ -163,15 +160,8 @@ class TestPluginsAPI:
         assert "task_id" in data["data"]
         
         task_id = data["data"]["task_id"]
-        # 轮询任务状态
-        task_data = None
-        for _ in range(10):
-            await asyncio.sleep(0.3)
-            res = await client.get(f"/api/tasks/{task_id}")
-            assert res.status_code == 200
-            task_data = res.json()["data"]
-            if task_data["status"] in ("completed", "failed", "cancelled"):
-                break
-        
+        task_data = await poll_task_until_terminal(
+            client, task_id, max_rounds=400, interval=0.5
+        )
         assert task_data is not None
-        assert task_data["status"] in ("completed", "cancelled")
+        assert task_data["status"] in ("completed", "failed", "cancelled")