Reload not working when new module is created inside a folder

[klopyrev]

What happened?

Every time I create a module inside a new folder, reloading of that module doesn't work until I restart AppDaemon. Then, reloading for that module starts working.

Version

4.5.13

Installation type

Home Assistant add-on

Relevant log output

2026-05-17 22:01:11.692305 ERROR Error: =====  'balcony_light_fix' instantiation  =================================
2026-05-17 22:01:11.693266 ERROR Error: AppInstantiationError: Failed to create object for 'balcony_light_fix'
2026-05-17 22:01:11.696907 ERROR Error:   MissingAppClass: balcony_light_fix does not have a class named 'BalconyLightFix'
2026-05-17 22:01:11.698060 ERROR Error:     Module path: apps/balcony_light_fix

Relevant code in the app or config file that caused the issue

Anything else?

Here's the analysis from Claude Code:

_process_import_paths only runs during INIT

• When creating a new app in a new subdirectory at runtime, AppDaemon detects the config and attempts to start the app, but fails with MissingAppClass because the new subdirectory was never added to sys.path
• _process_import_paths() in app_management.py only runs during UpdateMode.INIT (line ~957), so directories created after startup are never added to the Python import path
• A restart resolves the issue because INIT re-scans all directories
• This contradicts the documentation which states "The system is also capable of detecting if a new App has been added... starting the new App immediately"
• The fix would be to re-run import path processing (or a targeted subset of it) when new Python files are discovered in check_app_python_files