feat(plating-jobs): state-aware sort + default Open filter on Plating Jobs

The Plating Jobs list was sorted priority-desc, deadline-asc, id-desc — which
mixed Done (closed) jobs in with Confirmed (open) jobs and made the list look
chaotic to managers. Done jobs from weeks ago surfaced above active work.

Two changes:

1. New stored compute fp.job.state_priority (Integer, indexed) ranks states
   by managerial relevance: in_progress=0, confirmed=1, draft=2, on_hold=3,
   done=4, cancelled=5. _order now leads with state_priority asc, then
   priority desc, then date_deadline asc, then id desc. Active work bubbles
   to the top automatically.

2. Plating Jobs action defaults to a new 'Open' filter
   (state not in done, cancelled). Managers see only active work by default;
   they untick the filter to see history. Added On Hold + Cancelled filters
   too for full state coverage.

Verified on entech: top 10 jobs are now all in_progress, sorted by deadline
ascending. Existing 26-row list goes from chaotic to focused.

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

fusion_plating/fusion_plating/__manifest__.py

@@ -5,7 +5,7 @@
 
 {
     'name': 'Fusion Plating',
-    'version': '19.0.18.7.3',
+    'version': '19.0.18.7.4',
     'category': 'Manufacturing/Plating',
     'summary': 'Core plating / metal finishing ERP: facilities, processes, tanks, baths, jobs, operators.',
     'description': """