fix(jobs): make "In Progress" workflow milestone fire reliably

Two coupled fixes so the workflow bar shows "In Progress" when work
is actually underway, even on recipes without kind tagging:

  B. Auto-promote fp.job.state on first step start.
     fp.job.step.write hook detects step transitions to in_progress
     and promotes parent job state from 'confirmed' → 'in_progress'.
     Without this, fp.job.state never reached 'in_progress' anywhere
     in the codebase, so the trigger_on_job_state='in_progress'
     path was dead code.

  C. Smarter trigger_first_step_started for untagged recipes.
     For tagged recipes (any step has kind in wet/bake/mask/rack),
     keep the strict kind-based check. For untagged recipes (all
     steps kind='other' or similar), fall back to "any step in
     in_progress/paused/done" so the milestone fires regardless of
     recipe authoring quality.

Verified end-to-end on entech with untagged steps:
  - confirmed → in_progress when first step starts
  - workflow bar tracks at in_progress through the work
  - workflow bar advances to done when all steps done/skipped

Recipe authoring still encouraged for full Received / Inspected
intermediate states (those keep their default_kind triggers).

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

fusion_plating/fusion_plating_jobs/models/fp_job_step.py

@@ -174,6 +174,18 @@ class FpJobStep(models.Model):
                 '(state=%s) by %s.'
             )) % (step.name, old_name, new_name, step.state,
                   self.env.user.name))
+
+        # Auto-promote parent job: confirmed → in_progress on first
+        # step start. Without this, fp.job.state never reaches
+        # 'in_progress' anywhere in the codebase, so the In Progress
+        # workflow milestone (trigger_on_job_state='in_progress')
+        # never fires.
+        if vals.get('state') == 'in_progress':
+            jobs_to_promote = self.mapped('job_id').filtered(
+                lambda j: j.state == 'confirmed'
+            )
+            if jobs_to_promote:
+                jobs_to_promote.write({'state': 'in_progress'})
         return result
 
     @api.model