fix: fix the formatter is not applied on log file

[acelyc111]

Summary

Fixes #12744.

In #11599, the patch removed the formatter from basicConfig and added it only to the stdout, however, the log file requires formatter as well. This patch adds the formatter back.

Tip

Close issue syntax: Fixes #<issue number> or Resolves #<issue number>, see documentation for more details.

Screenshots

In log files:

Before:

INFO:root:Loaded ext_storage (364.46 ms)
INFO:root:Loaded ext_celery (1.46 ms)
INFO:root:Loaded ext_login (0.01 ms)
INFO:root:Skipped ext_mail
INFO:root:Loaded ext_hosting_provider (0.0 ms)
INFO:root:Loaded ext_sentry (0.0 ms)
INFO:root:Loaded ext_proxy_fix (0.0 ms)
INFO:root:Loaded ext_blueprints (373.1 ms)
INFO:root:Loaded ext_commands (1.6 ms)
INFO:root:Finished create_app (11808.69 ms)
INFO:werkzeug:�[31m�[1mWARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.�[0m
 * Running on all addresses (0.0.0.0)
 * Running on http://127.0.0.1:5001
 * Running on http://x.x.x.x:5001
INFO:werkzeug:�[33mPress CTRL+C to quit�[0m

After:

2025-01-14 23:45:21,637.637 INFO [MainThread] [app_factory.py:90] - Loaded ext_celery (2.81 ms)
2025-01-14 23:45:21,637.637 INFO [MainThread] [app_factory.py:90] - Loaded ext_login (0.02 ms)
2025-01-14 23:45:21,637.637 INFO [MainThread] [app_factory.py:83] - Skipped ext_mail
2025-01-14 23:45:21,637.637 INFO [MainThread] [app_factory.py:90] - Loaded ext_hosting_provider (0.01 ms)
2025-01-14 23:45:21,637.637 INFO [MainThread] [app_factory.py:90] - Loaded ext_sentry (0.0 ms)
2025-01-14 23:45:21,637.637 INFO [MainThread] [app_factory.py:90] - Loaded ext_proxy_fix (0.0 ms)
2025-01-14 23:45:22,001.001 INFO [MainThread] [app_factory.py:90] - Loaded ext_blueprints (364.07 ms)
2025-01-14 23:45:22,003.003 INFO [MainThread] [app_factory.py:90] - Loaded ext_commands (1.27 ms)
2025-01-14 23:45:22,003.003 INFO [MainThread] [app_factory.py:28] - Finished create_app (6042.56 ms)
2025-01-14 23:45:22,008.008 INFO [MainThread] [_internal.py:97] - �[31m�[1mWARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.�[0m
 * Running on all addresses (0.0.0.0)
 * Running on http://127.0.0.1:5001
 * Running on http://x.x.x.x:5001
2025-01-14 23:45:22,008.008 INFO [MainThread] [_internal.py:97] - �[33mPress CTRL+C to quit�[0m

Checklist

Important

Please review the checklist below before submitting your pull request.

• This change requires a documentation update, included: Dify Document
• I understand that this PR may be closed in case there was no previous discussion or issues. (This doesn't apply to typos!)
• I've added a test for each change that was introduced, and I tried as much as possible to make a single atomic change.
• I've updated the documentation accordingly.
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods

[crazywoola]

Hello please link an existing issue or open a new issue.

[acelyc111]

Hello please link an existing issue or open a new issue.

Done

[crazywoola]

@luckylhb90 Thoughts?