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/models/schemas.py

@@ -1,5 +1,5 @@
 """Pydantic 模型 - 用于 API 请求/响应校验"""
-from pydantic import BaseModel, Field, field_validator
+from pydantic import BaseModel, Field, field_validator, ConfigDict
 from typing import Optional, List
 
 
@@ -25,6 +25,7 @@ class ProxyResponse(BaseModel):
     score: int
     response_time_ms: Optional[float] = None
     last_check: Optional[str] = None
+    validated: int = 0
 
 
 class PluginResponse(BaseModel):
@@ -39,13 +40,14 @@ class PluginResponse(BaseModel):
 
 
 class SettingsSchema(BaseModel):
-    crawl_timeout: int = Field(default=30, ge=5, le=120)
-    validation_timeout: int = Field(default=10, ge=3, le=60)
-    max_retries: int = Field(default=3, ge=0, le=10)
-    default_concurrency: int = Field(default=50, ge=10, le=200)
+    model_config = ConfigDict(extra="ignore")
+
+    validation_timeout: int = Field(default=6, ge=3, le=60)
+    default_concurrency: int = Field(default=120, ge=10, le=400)
     min_proxy_score: int = Field(default=0, ge=0, le=100)
     proxy_expiry_days: int = Field(default=7, ge=1, le=30)
     auto_validate: bool = True
+    auto_validate_after_crawl: bool = False
     validate_interval_minutes: int = Field(default=30, ge=5, le=1440)
     validation_targets: List[str] = Field(
         default=[
@@ -60,10 +62,14 @@ class SettingsSchema(BaseModel):
 
 
 class CrawlSummarySchema(BaseModel):
+    """单次爬取任务结果（与 CrawlJob 返回的 result 对齐）"""
+
     plugin_id: str
     proxy_count: int
-    valid_count: int
-    invalid_count: int = 0
+    crawl_failed: bool = False
+    error: Optional[str] = None
+    success_count: int = 0  # 与 proxy_count 相同，兼容旧前端
+    failure_count: int = 0
 
 
 class ProxyListRequest(BaseModel):
@@ -74,6 +80,20 @@ class ProxyListRequest(BaseModel):
     max_score: Optional[int] = Field(default=None, ge=0)
     sort_by: str = "last_check"
     sort_order: str = "DESC"
+    pool_filter: Optional[str] = Field(
+        default=None,
+        description="all 或不传=全部；pending=待验证；available=已验证且可用",
+    )
+
+    @field_validator("pool_filter")
+    @classmethod
+    def validate_pool_filter(cls, v: Optional[str]):
+        if v is None or v == "" or v == "all":
+            return None
+        allowed = ("pending", "available")
+        if v not in allowed:
+            raise ValueError(f"pool_filter 必须是 {allowed} 之一或 all")
+        return v
 
     @field_validator("protocol")
     @classmethod