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/models/fp_job.py

@@ -52,7 +52,11 @@ class FpJob(models.Model):
         return dt.astimezone(tz).strftime(fmt)
     _description = 'Plating Job'
     _inherit = ['mail.thread', 'mail.activity.mixin']
-    _order = 'priority desc, date_deadline asc, id desc'
+    # Sub 12d — state-aware sort. Active work bubbles to the top
+    # (in_progress → confirmed/draft → on_hold → done → cancelled),
+    # then high-priority first within each state, then nearest deadline.
+    # state_priority is a small stored compute below.
+    _order = 'state_priority asc, priority desc, date_deadline asc, id desc'
     _rec_name = 'name'
 
     name = fields.Char(
@@ -76,6 +80,29 @@ class FpJob(models.Model):
         tracking=True,
         index=True,
     )
+    # Sub 12d — drives the default sort so active jobs surface above
+    # closed jobs. Lower number = sorted earlier. Stored + indexed so
+    # SQL ORDER BY hits an index and doesn't recompute per row.
+    state_priority = fields.Integer(
+        string='State Priority',
+        compute='_compute_state_priority',
+        store=True,
+        index=True,
+    )
+
+    _STATE_SORT_RANK = {
+        'in_progress': 0,
+        'confirmed':   1,
+        'draft':       2,
+        'on_hold':     3,
+        'done':        4,
+        'cancelled':   5,
+    }
+
+    @api.depends('state')
+    def _compute_state_priority(self):
+        for rec in self:
+            rec.state_priority = self._STATE_SORT_RANK.get(rec.state, 9)
     priority = fields.Selection(
         [
             ('low', 'Low'),