feat(pos): add plate lookup (#8), 326 translations (#12), bulk image import (#11)

- Plate lookup: new plate_vehicles table (v1.7 migration), plate_lookup
  service with Mexican plate validation, GET/POST endpoints on catalog_bp,
  plate search UI in catalog vehicle selector
- Translations: extend PART_TRANSLATIONS from ~80 to 326 entries covering
  brake, engine, fuel, cooling, electrical, drivetrain, suspension, steering,
  exhaust, A/C, lighting, body, interior, fluids, and category translations
- Bulk images: image_scraper service with download+resize+placeholder
  generation, bulk-images and auto-image endpoints on inventory_bp

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

pos/blueprints/inventory_bp.py

@@ -19,6 +19,17 @@ from services.audit import log_action
 inventory_bp = Blueprint('inventory', __name__, url_prefix='/pos/api/inventory')
 
 
+# ─── AI Classification ───────────────────────────
+
+@inventory_bp.route('/classify/<part_number>', methods=['GET'])
+@require_auth('inventory.create')
+def classify_part_endpoint(part_number):
+    """Ask AI to identify a part by its OEM number."""
+    from services.ai_chat import classify_part
+    result = classify_part(part_number)
+    return jsonify(result)
+
+
 # ─── Item CRUD ──────────────────────────────────
 
 @inventory_bp.route('/items', methods=['GET'])
@@ -457,6 +468,80 @@ def delete_image(item_id):
     return jsonify({'message': 'Image deleted'})
 
 
+# ─── Bulk Image Import ─────────────────────────
+
+@inventory_bp.route('/bulk-images', methods=['POST'])
+@require_auth('inventory.edit')
+def bulk_upload_images():
+    """Bulk import images from URLs for multiple inventory items.
+
+    Accepts JSON: {items: [{part_number, image_url}, ...]}
+    Downloads each image, resizes/optimizes, saves to disk, updates DB.
+    Returns {imported: N, errors: [...]}
+    """
+    data = request.get_json() or {}
+    items_list = data.get('items', [])
+
+    if not items_list:
+        return jsonify({'error': 'items array required'}), 400
+
+    if len(items_list) > 500:
+        return jsonify({'error': 'Maximum 500 items per request'}), 400
+
+    from services.image_scraper import bulk_import
+
+    conn = get_tenant_conn(g.tenant_id)
+    try:
+        result = bulk_import(conn, g.tenant_id, items_list)
+        log_action(conn, 'BULK_IMAGE_IMPORT', 'inventory', None,
+                   new_value={'imported': result['imported'], 'error_count': len(result['errors'])})
+        return jsonify(result)
+    except Exception as e:
+        return jsonify({'error': str(e)}), 500
+    finally:
+        conn.close()
+
+
+@inventory_bp.route('/items/<int:item_id>/auto-image', methods=['POST'])
+@require_auth('inventory.edit')
+def auto_image(item_id):
+    """Generate a placeholder image for an inventory item.
+
+    Creates a branded placeholder with the part number text.
+    Useful when no real product image is available.
+    """
+    conn = get_tenant_conn(g.tenant_id)
+    cur = conn.cursor()
+
+    cur.execute("SELECT part_number, name FROM inventory WHERE id = %s", (item_id,))
+    row = cur.fetchone()
+    if not row:
+        cur.close(); conn.close()
+        return jsonify({'error': 'Item not found'}), 404
+
+    part_number, name = row
+
+    try:
+        from services.image_scraper import generate_placeholder
+        rel_url = generate_placeholder(g.tenant_id, item_id, part_number, name or '')
+
+        cur.execute("UPDATE inventory SET image_url = %s WHERE id = %s", (rel_url, item_id))
+        conn.commit()
+
+        log_action(conn, 'AUTO_IMAGE_GENERATED', 'inventory', item_id,
+                   new_value={'image_url': rel_url})
+
+        cur.close(); conn.close()
+        return jsonify({
+            'image_url': rel_url,
+            'message': 'Placeholder image generated'
+        })
+    except Exception as e:
+        conn.rollback()
+        cur.close(); conn.close()
+        return jsonify({'error': str(e)}), 500
+
+
 # ─── Stock Operations ──────────────────────────
 
 @inventory_bp.route('/purchase', methods=['POST'])