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.paul/changelog/2026-05-05.md

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+# 2026-05-05
+
+## Co zrobiono
+
+- [09-unit-pricing, Plan 01] Wdrozono obsluge unit pricing w adsPRO (DB + API + feed + dokumentacja).
+- Dodano endpointy: `product_unit_pricing_set`, `product_unit_pricing_get`, `products_get_missing_unit_pricing`.
+- Dodano walidacje formatu i zgodnosci jednostek oraz aktualizacje `unit_pricing_changed_at` + wpisy do `products_comments`.
+- Rozszerzono supplemental feed TSV o `unit_pricing_measure` i `unit_pricing_base_measure`.
+
+## Zmienione pliki
+
+- `api.php`
+- `autoload/services/class.SupplementalFeed.php`
+- `migrations/030_products_unit_pricing.sql`
+- `docs/api-public-product-management.md`
+- `docs/database.sql`
+- `.paul/phases/09-unit-pricing/09-01-PLAN.md`
+- `.paul/phases/09-unit-pricing/09-01-SUMMARY.md`
+- `.paul/STATE.md`