- Add MerchantCorrection model: upsert by merchantName, Category enum
- Check corrections DB first in suggestCategoryForMerchant (source: "learned",
no confirmation required); falls through to rules then Ollama if no match
- Inject recent corrections as few-shot examples in the Ollama prompt so the
model improves even for merchants not yet explicitly corrected
- Add POST /categories/correct route to persist corrections
- Detect category override on form save (suggestedCategory !== chosen category)
and silently fire a correction — no extra UX required
- Fix test isolation: beforeEach re-applies vi.fn() defaults after restoreAllMocks
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
