chore: ruff 代码检查与修复

130 issues auto-fixed (import ordering, UP045/UP006 type annotations),
33 issues manually fixed (E712/E501/E402/E722 + N818 rename + per-file
wechat ignore for N8xx naming conventions). All 33 tests pass.

app/crawler/parsers.py

@@ -1,18 +1,18 @@
 import hashlib
 from datetime import datetime
-from typing import Any, Dict, List
+from typing import Any
 from urllib.parse import urljoin
 
 from bs4 import BeautifulSoup
 
 
 def parse_gxgp_api_response(
-    response_data: Dict[str, Any],
+    response_data: dict[str, Any],
     source_code: str,
     source_name: str,
     crawled_at: datetime,
     category_id: int,
-) -> List[Dict[str, Any]]:
+) -> list[dict[str, Any]]:
     if not response_data.get("success"):
         return []
     data = response_data.get("result", {}).get("data", {})
@@ -62,7 +62,7 @@ def parse_gxgp_api_response(
     return results
 
 
-def extract_pagination(response_data: Dict[str, Any]) -> Dict[str, Any]:
+def extract_pagination(response_data: dict[str, Any]) -> dict[str, Any]:
     data = response_data.get("result", {}).get("data", {})
     return {
         "total": data.get("total", 0),
@@ -75,7 +75,7 @@ def extract_pagination(response_data: Dict[str, Any]) -> Dict[str, Any]:
     }
 
 
-def parse_dahuagov_html(html: str, crawled_at: datetime) -> List[Dict[str, Any]]:
+def parse_dahuagov_html(html: str, crawled_at: datetime) -> list[dict[str, Any]]:
     soup = BeautifulSoup(html, "html.parser")
     lists = soup.find_all("ul", class_="more-list")
     if not lists:
@@ -131,7 +131,7 @@ def parse_dahuagov_html(html: str, crawled_at: datetime) -> List[Dict[str, Any]]
     return results
 
 
-def _generate_hash(ann: Dict[str, Any]) -> str:
+def _generate_hash(ann: dict[str, Any]) -> str:
     content = (
         f"{ann['title']}|{ann['publish_date'].strftime('%Y-%m-%d')}"
         f"|{ann['purchase_name']}|{ann['content_url']}|{ann['source_code']}"