- Remove content preview from ID generation for stable structural IDs
- Implement database-first approach to check content existence before creation
- Add enhanced DOM path, semantic context, and precise sibling indexing
- Replace HTML attribute checking with reliable database lookups
- Add collision handling with increment counters for similar elements
Fixes:
✅ UNIQUE constraint errors eliminated (multiple enhancement runs work)
✅ Structural stability (same element keeps same ID regardless of content changes)
✅ Database-driven workflow (single source of truth for content existence)
✅ Enhanced collision resistance with detailed structural differentiation
Results: No more 'Failed to store content' errors, stable enhance workflow.