fix(shopfloor): tablet tiles domain uses group_ids (Odoo 19 rename)

Same mistake as the original implementer wave — used the deprecated
groups_id field name on res.users in the search domain. Odoo 19 raises
ValueError: Invalid field res.users.groups_id. Should be group_ids.

CLAUDE.md rule 13l example also fixed so future-Claude doesn't copy
the bug from the documentation.

Module version: 19.0.32.0.12 -> 19.0.32.0.13

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

fusion_plating/fusion_plating_shopfloor/controllers/tablet_controller.py

@@ -242,8 +242,9 @@ class FpTabletController(http.Controller):
             return {'ok': False, 'error': 'shop-branch role groups missing'}
 
         Users = env['res.users'].sudo()
+        # Odoo 19 renamed res.users.groups_id -> group_ids (CLAUDE.md rule 13c).
         users = Users.search([
-            ('groups_id', 'in', group_ids),
+            ('group_ids', 'in', group_ids),
             ('share', '=', False),
             ('active', '=', True),
         ])