refactor(log): refactor the whole project

format: {time:YYYY-MM-DD HH:mm:ss} [{level}] | {name} | {message}
{name} is:
- Uvicorn: log from uvicorn server (#228B22)
- Service: log from class of `app.service` (blue)
- Fetcher: log from fetchers (magenta)
- Task: log from `app.tasks` (#FFD700)
- System: log from `system_logger` (red)
- Normal: log from `log(name)` (#FFC1C1)
- Default: the module name of caller

if you are writing services or tasks, you can just call `logger.`, we will pack it with name `Service` or `Task`
if you want to print fetcher logs, system-related logs, or normal logs, use `logger = (fetcher_logger / system_logger / log)(name)`

app/helpers/geoip_helper.py

@@ -55,7 +55,7 @@ class GeoIPHelper:
         - 临时目录退出后自动清理
         """
         if not self.license_key:
-            raise ValueError("缺少 MaxMind License Key，请传入或设置环境变量 MAXMIND_LICENSE_KEY")
+            raise ValueError("MaxMind License Key is missing. Please configure it via env MAXMIND_LICENSE_KEY.")
 
         url = f"{BASE_URL}?edition_id={edition_id}&license_key={self.license_key}&suffix=tar.gz"