feat(pricing): kit/pachet pricing with price list lookup, replace procent_pret

- Oracle PL/SQL: kit pricing logic with Mode A (distributed discount) and
  Mode B (separate discount line), dual policy support, PRETURI_CU_TVA flag
- Eliminate procent_pret from entire stack (Oracle, Python, JS, HTML)
- New settings: kit_pricing_mode, kit_discount_codmat, price_sync_enabled
- Settings UI: cards for Kit Pricing and Price Sync configuration
- Mappings UI: kit badges with lazy-loaded component prices from price list
- Price sync from orders: auto-update ROA prices when web prices differ
- Catalog price sync: new service to sync all GoMag product prices to ROA
- Kit component price validation: pre-check prices before import
- New endpoint GET /api/mappings/{sku}/prices for component price display
- New endpoints POST /api/price-sync/start, GET status, GET history
- DDL script 07_drop_procent_pret.sql (run after deploy confirmation)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/app/services/import_service.py

@@ -342,6 +342,12 @@ def import_single_order(order, id_pol: int = None, id_sectie: int = None, app_se
                 # Convert list[int] to CSV string for Oracle VARCHAR2 param
                 id_gestiune_csv = ",".join(str(g) for g in id_gestiuni) if id_gestiuni else None
 
+                # Kit pricing parameters from settings
+                kit_mode = (app_settings or {}).get("kit_pricing_mode") or None
+                kit_id_pol_prod = int((app_settings or {}).get("id_pol_productie") or 0) or None
+                kit_discount_codmat = (app_settings or {}).get("kit_discount_codmat") or None
+                kit_discount_id_pol = int((app_settings or {}).get("kit_discount_id_pol") or 0) or None
+
                 cur.callproc("PACK_IMPORT_COMENZI.importa_comanda", [
                     order_number,           # p_nr_comanda_ext
                     order_date,             # p_data_comanda
@@ -352,7 +358,11 @@ def import_single_order(order, id_pol: int = None, id_sectie: int = None, app_se
                     id_pol,                 # p_id_pol
                     id_sectie,              # p_id_sectie
                     id_gestiune_csv,        # p_id_gestiune (CSV string)
-                    id_comanda              # v_id_comanda (OUT)
+                    kit_mode,               # p_kit_mode
+                    kit_id_pol_prod,        # p_id_pol_productie
+                    kit_discount_codmat,    # p_kit_discount_codmat
+                    kit_discount_id_pol,    # p_kit_discount_id_pol
+                    id_comanda              # v_id_comanda (OUT) — MUST STAY LAST
                 ])
 
                 comanda_id = id_comanda.getvalue()