fix(jobs): header Finish & Next propagates button_start's action

Bug: action_finish_current_step (the header-level Finish & Next
button on the job form) called button_start() without capturing its
return value. So when button_start returned an action (e.g. the new
QA-005 redirect for contract_review steps from 21e42e7), the header
method threw it away and returned True. Result: operator clicked
Finish & Next, the step started, but no navigation. They had to
click again — the second click found the in_progress step, called
action_finish_and_advance, which returned the QA-005 action.

Two clicks instead of one to land on QA-005.

Fix: capture button_start's return value. If it's a dict (= an
action), return it. Otherwise return True (the normal case).

User reproduction (WH/JOB/00341):
  Header > Finish & Next (1st click) → step starts + QA-005 opens
  Sign / dismiss QA-005 → back to job
  Header > Finish & Next (2nd click) → step finishes + next starts

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

fusion_plating/fusion_plating_jobs/__manifest__.py

@@ -3,7 +3,7 @@
 # License OPL-1 (Odoo Proprietary License v1.0)
 {
     'name': 'Fusion Plating — Native Jobs',
-    'version': '19.0.8.17.1',
+    'version': '19.0.8.17.2',
     'category': 'Manufacturing/Plating',
     'summary': 'Native plating job model — replaces mrp.production / mrp.workorder bridge.',
     'author': 'Nexa Systems Inc.',

fusion_plating/fusion_plating_jobs/models/fp_job.py

@@ -263,6 +263,11 @@ class FpJob(models.Model):
         nothing is running yet, start the lowest-sequence pending step
         instead — operator's first click on a fresh job just begins
         the line.
+
+        Sub 12e v4 — when button_start returns an action (e.g. the
+        QA-005 redirect for contract_review steps), propagate it so
+        the operator lands on the right page in ONE click instead of
+        two.
         """
         self.ensure_one()
         running = self.step_ids.filtered(lambda s: s.state == 'in_progress')[:1]
@@ -277,10 +282,17 @@ class FpJob(models.Model):
                 'No runnable step found on this job — either every step '
                 'is done or the job is still in draft.'
             ))
-        first.with_context(fp_skip_predecessor_check=True).button_start()
+        result = first.with_context(
+            fp_skip_predecessor_check=True,
+        ).button_start()
         self.message_post(body=_(
             'Started first step "%s".'
         ) % first.name)
+        # Propagate any action returned by button_start (e.g. the
+        # QA-005 redirect on a contract_review step). If it's just
+        # True/False (the normal case), fall back to True.
+        if isinstance(result, dict):
+            return result
         return True
 
     def action_open_move_wizard(self):