changes

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'),