StillHammer 29bc112c0c Unify vocabulary persistence system - remove dual systems ... - Simplified loadPersistedVocabularyData() to use only VocabularyProgressManager - Updated calculateVocabularyProgress() to use unified data structure - Removed old system references from knowledge panel data loading - Fixed field names (drsDiscovered, drsMastered) for unified system - Knowledge panel now displays vocabulary progress correctly ✅ TESTED: Vocabulary Knowledge panel working with unified system 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>		2025-09-30 13:39:00 +08:00
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drs-progress-sbs-sbs-7-8.json	Unify vocabulary persistence system - remove dual systems	2025-09-30 13:39:00 +08:00