Issue #3: User Preferences - export format default
- Add userPreferencesStore with localStorage persistence
- Create Settings page with export format dropdown and theme toggle
- SessionDetailPage now uses default export format from preferences
Issue #5: Step Categories - database table and seed data
- Migration 007: step_categories table with team scoping
- Seed 10 default global categories (Citrix/VDI, AD, M365, etc.)
- Full CRUD API at /api/v1/step-categories
Issue #6: Step Library - database schema
- Migration 008: step_library, step_ratings, step_usage_log tables
- Support for decision/action/solution step types
- Visibility levels: private, team, public
- Rating aggregates and usage tracking
Issue #7: Step Library - CRUD API endpoints
- Full CRUD at /api/v1/steps with visibility filtering
- Full-text search endpoint
- Popular tags endpoint
- Rating/review system with verified use tracking
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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