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/blueprints/config_bp.py

@@ -469,21 +469,12 @@ _ALLOWED_PART_BRANDS = [
 @config_bp.route('/available-brands', methods=['GET'])
 @require_auth()
 def get_available_brands():
-    """Return whitelisted aftermarket manufacturer names from master DB."""
-    from tenant_db import get_master_conn
-    conn = get_master_conn()
-    cur = conn.cursor()
-    cur.execute("""
-        SELECT DISTINCT m.name_manufacture
-        FROM manufacturers m
-        JOIN aftermarket_parts ap ON ap.manufacturer_id = m.id_manufacture
-        WHERE m.name_manufacture IS NOT NULL AND m.name_manufacture != ''
-          AND LOWER(m.name_manufacture) = ANY(%s)
-        ORDER BY m.name_manufacture ASC
-    """, ([b.lower() for b in _ALLOWED_PART_BRANDS],))
-    brands = [r[0] for r in cur.fetchall()]
-    cur.close()
-    conn.close()
+    """Return the whitelisted part manufacturer names.
+
+    The master DB manufacturers/aftermarket_parts tables were removed with
+    TecDoc, so we return the curated whitelist directly.
+    """
+    brands = sorted({b.strip() for b in _ALLOWED_PART_BRANDS if b and b.strip()})
     return jsonify({'brands': brands})