# Schema Migration Delta Log — 2026-03-25

Date: 2026-03-25

## Delta Summary

- Normalized `recipes` table: removed JSON columns for ingredients and instructions
- Added `ingredients` table (with position/order, FK to recipe)
- Added `steps` table (with position/order, FK to recipe)
- Removed `notes` and `last_cooked_at` columns from recipes
- Changed timestamp columns to DATETIME for better SQLite compatibility
- Removed color from tags table
- Added index on `ingredients(item)`
- Confirmed/completed indexes per spec

See [../migrations/2026-03-25-schema-migration.md](../migrations/2026-03-25-schema-migration.md) for the detailed migration plan and SQL changes.

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## Action Items
- [ ] Implement migration logic (split JSON columns)
- [ ] Update `src/backend/db/schema.sql` with normalized tables
- [ ] Write data migration script for live DBs (extract and insert ingredient/step records)
- [ ] Run DB migration
- [ ] Update test cases and data fixtures