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23fd3fad35
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feat(06-01): add migration 006 uniqueness constraints with safe deduplication
- DELETE duplicate budgets keeping oldest per (user_id, start_date)
- ADD CONSTRAINT budgets_user_month_unique UNIQUE (user_id, start_date)
- DELETE duplicate categories keeping oldest per (user_id, name)
- ADD CONSTRAINT categories_user_name_unique UNIQUE (user_id, name)
- Wrapped in single BEGIN/COMMIT transaction for atomicity
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2026-04-20 17:48:13 +02:00 |
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