feat: enhance project configuration and improve data export functionality

- Updated `.gitignore` to streamline ignored files and added logging for common sites.
- Expanded `config.py` with new configurations for Weixin and Redis, and improved database connection settings.
- Refined `README.md` to clarify project structure and usage instructions.
- Enhanced `requirements.txt` with additional dependencies for MongoDB and Redis support.
- Refactored multiple spider scripts to utilize a session-based approach for HTTP requests, improving error handling and proxy management.
- Updated `export_lawyers_excel.py` to include a default timestamp for data exports.

common_sites/export_lawyers_excel.py

@@ -19,6 +19,9 @@ if project_root not in sys.path:
 from Db import Db
 
 
+DEFAULT_EXPORT_START_TS = 1772932103
+
+
 def parse_args() -> argparse.Namespace:
     parser = argparse.ArgumentParser(description="导出律师数据到 Excel")
     parser.add_argument(
@@ -30,7 +33,10 @@ def parse_args() -> argparse.Namespace:
         "--start-ts",
         type=int,
         default=None,
-        help="create_time 起始时间戳（含），不传时默认取最近7天",
+        help=(
+            "create_time 起始时间戳（含），"
+            f"不传时默认取 {DEFAULT_EXPORT_START_TS} 之后的数据"
+        ),
     )
     parser.add_argument(
         "--end-ts",
@@ -83,9 +89,9 @@ def parse_args() -> argparse.Namespace:
 
 
 def apply_default_time_filter(args: argparse.Namespace) -> None:
-    # 未显式传时间范围时，默认导出最近7天的数据
+    # 未显式传时间范围时，默认导出指定时间戳之后的数据
     if args.start_ts is None and args.end_ts is None:
-        args.start_ts = int(time.time()) - 7 * 24 * 3600
+        args.start_ts = DEFAULT_EXPORT_START_TS
         args.end_ts = 0
         return
     if args.start_ts is None:
@@ -211,11 +217,10 @@ def export_to_excel(
     ws = wb.active
     ws.title = "lawyers"
 
-    headers = ["手机号", "姓名", "律所", "省份", "市区", "站点名称", "domain"]
+    headers = ["手机号", "姓名", "律所", "省份", "市区", "站点名称", "domain", "URL"]
     if include_extra:
         headers.extend(
             [
-                "URL",
                 "站点",
                 "create_time",
                 "create_time_text",
@@ -270,12 +275,12 @@ def export_to_excel(
             row.get("city", "") or "",
             site_name,
             row.get("domain", "") or "",
+            row.get("url", "") or "",
         ]
 
         if include_extra:
             line.extend(
                 [
-                    row.get("url", "") or "",
                     row.get("domain", "") or "",
                     row.get("create_time", "") or "",
                     ts_to_text(row.get("create_time")),