changes

fusion_plating/fusion_plating/models/fp_job.py

@@ -248,6 +248,9 @@ class FpJob(models.Model):
                     "Job %s is in state '%s' - only draft jobs can be confirmed."
                 ) % (job.name, job.state))
             job.state = 'confirmed'
+        # Step auto-promote happens in the fusion_plating_jobs override
+        # AFTER _generate_steps_from_recipe runs — at this point step_ids
+        # is empty for any newly-confirmed job.
         return True
 
     def action_cancel(self):

fusion_plating/fusion_plating/models/fp_job_step.py

@@ -132,6 +132,12 @@ class FpJobStep(models.Model):
         related='recipe_node_id.customer_visible',
         store=True,
     )
+    requires_predecessor_done = fields.Boolean(
+        related='recipe_node_id.requires_predecessor_done',
+        store=True,
+        help='If True, button_start blocks until every earlier-sequence '
+             'step in this job is done/skipped/cancelled.',
+    )
 
     # ------------------------------------------------------------------
     # Cost rollup (Task 1.6)

fusion_plating/fusion_plating/models/fp_process_node.py

@@ -170,6 +170,16 @@ class FpProcessNode(models.Model):
         default=False,
         help='Quality hold point — requires operator sign-off.',
     )
+    requires_predecessor_done = fields.Boolean(
+        string='Requires Predecessor Done',
+        default=False,
+        help='If checked, this step cannot start until ALL earlier-'
+             'sequence steps in the job are done / skipped / cancelled. '
+             'Use for serial-required operations (e.g. Plating must '
+             'follow Acid Etch with no time gap — passivation layer '
+             'forms in seconds). Leaving unchecked allows parallel '
+             'work across tanks (the default).',
+    )
     opt_in_out = fields.Selection(
         [
             ('disabled', 'Required'),