Fixed issue when cached schools will hang initialization.

[schizza]

⚠️ PR směřujte do dev. Do main jen release/* nebo hotfix/*.

[Copilot]

Pull request overview

This PR fixes a critical bug where the initialization process would hang when schools were loaded from cache. The original code incorrectly returned False even when schools were successfully loaded from cache, preventing the configuration flow from completing.

Changes:

• Fixed _load_schools() to properly return True when schools are loaded from cache
• Added error tracking and retry mechanism for failed school loading attempts
• Added exception handling for unexpected errors during school loading

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
custom_components/bakalari/translations/cs.json	Added "unknown" error message translation for unexpected errors
custom_components/bakalari/config_flow.py	Fixed critical bug where cache-loaded schools returned False instead of True; added error tracking, retry mechanism, and proper task completion checking

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