feat(fusion_plating_receiving): open Receiving menu to Technician + technician shipping ACLs

- Backend "Shipping & Receiving" menu lowered from Shop Manager to Technician
  (all higher roles inherit Technician, so none lose access).
- Technicians granted r/w/c on fp.outbound.package and the manual/generate
  label wizards — shipping parity with shop managers so they can generate
  outbound labels and manage packages in the backend.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

fusion_plating/fusion_plating_receiving/__manifest__.py

@@ -5,7 +5,7 @@
 
 {
     'name': 'Fusion Plating — Receiving & Inspection',
-    'version': '19.0.3.28.3',
+    'version': '19.0.3.28.5',
     'category': 'Manufacturing/Plating',
     'summary': 'Parts receiving, inspection, damage logging, and manufacturing gate.',
     'description': """