feat(catalog): supplier catalog cleanup, fuzzy matching, and navigation fixes

- Cleaned 137+ fake engine-displacement models from supplier imports
  (v3/v4 scripts: Chevrolet, Ford, Chrysler, Dodge, Jeep, Nissan, etc.)
- Removed 1,251+ corrupted models (INT. prefixes, year-suffix, torque specs,
  empty names, trailing-year variants)
- Migrated supplier tables to master DB (supplier_catalog,
  supplier_catalog_compat, supplier_catalog_interchange)
- Fixed _get_mye_ids_with_parts() to query supplier_catalog_compat from
  master DB so supplier-only vehicles appear for all tenants
- Added fuzzy model matcher with parenthesis stripping, noise suffix removal,
  compact matching, prefix/substring fallback, model aliases, and ±3 year
  proximity
- Matched compat rows: KEEP GREEN +14,152, KNADIAN +3,021, VAZLO +127,500,
  LUK +477, RAYBESTOS +1,743
- Added KNADIAN catalog importer with year-range expansion and future-year
  filtering
- Added VAZLO catalog importer with position parsing and SKU-in-model cleanup
- Added Keep Green, LUK, Yokomitsu, Raybestos catalog importers
- Cache clearing after cleanups (_classify_cache_*, nexus:mye_ids:*,
  nexus:brand_mye_counts:*)

Final match rates:
- KEEP GREEN: 90.3%
- VAZLO: 93.6%
- YOKOMITSU: 100.0%
- KNADIAN: 57.4%
- LUK: 51.0%
- RAYBESTOS: 55.9%

pos/services/pos_engine.py

@@ -447,6 +447,35 @@ def process_sale(conn, sale_data):
     except Exception:
         pass  # Learning errors never block sales
 
+    # Dropshipping webhook hook (non-blocking)
+    try:
+        from services import dropshipping_service as ds_svc
+        from services.webhook_service import dispatch_webhooks_bulk
+        webhook_urls = ds_svc.get_webhook_targets(conn, 'sale_made')
+        if webhook_urls:
+            payload_items = []
+            for item in enriched_items:
+                remaining = item['stock_before'] - item['quantity']
+                payload_items.append({
+                    'sku': item['part_number'],
+                    'name': item['name'],
+                    'quantity_sold': item['quantity'],
+                    'stock_remaining': remaining,
+                    'unit_price': item['unit_price'],
+                })
+            threading.Thread(
+                target=dispatch_webhooks_bulk,
+                args=(webhook_urls, 'sale_made', {
+                    'sale_id': sale_id,
+                    'items': payload_items,
+                    'total': totals['total'],
+                    'created_at': str(created_at),
+                }),
+                daemon=True
+            ).start()
+    except Exception:
+        pass  # Webhook errors never block sales
+
     return {
         'id': sale_id,
         'branch_id': branch_id,