Issue cashier booth tickets when financial gates block service.

Pay-before-service holds now create a billing queue ticket (via an open bill) so cashiers can Call next / Serve; clearance completes the ticket and releases the clinical line as before.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/Services/Care/Workflow/WorkflowEngine.php

@@ -174,6 +174,7 @@ class WorkflowEngine
 
         $this->gate->obligationFor($visit, $advance->stage);
         $satisfied = $this->gate->isSatisfied($visit, $advance->stage);
+        $becameBlocked = false;
 
         if ($advance->isBlocked() && $satisfied) {
             $advance->forceFill([
@@ -187,9 +188,17 @@ class WorkflowEngine
                 'blocked_reason' => $this->gate->blockedReason($visit, $advance->stage),
                 'cleared_at' => null,
             ])->save();
+            $becameBlocked = true;
         }
 
-        return $advance->fresh();
+        $fresh = $advance->fresh();
+        // Only enqueue when the gate newly blocks — not on every refresh — so
+        // CareQueueBridge::issueForBill → canRelease → refreshGate cannot recurse.
+        if ($becameBlocked && $fresh?->blocked_reason === 'awaiting_payment') {
+            $this->enqueueCashierBooth($visit);
+        }
+
+        return $fresh;
     }
 
     protected function enterStage(Visit $visit, FacilityWorkflow $workflow, WorkflowStage $stage): VisitStageAdvance
@@ -198,7 +207,7 @@ class WorkflowEngine
 
         $satisfied = $this->gate->isSatisfied($visit, $stage);
 
-        return VisitStageAdvance::create([
+        $advance = VisitStageAdvance::create([
             'owner_ref' => $visit->owner_ref,
             'visit_id' => $visit->id,
             'workflow_id' => $workflow->id,
@@ -209,6 +218,26 @@ class WorkflowEngine
             'entered_at' => now(),
             'cleared_at' => $satisfied ? now() : null,
         ]);
+
+        if ($advance->isBlocked() && $advance->blocked_reason === 'awaiting_payment') {
+            $this->enqueueCashierBooth($visit);
+        }
+
+        return $advance;
+    }
+
+    /**
+     * Resolve lazily to avoid a constructor cycle with WorkflowQueueReleaseService.
+     */
+    protected function enqueueCashierBooth(Visit $visit): void
+    {
+        $organization = $visit->organization
+            ?? \App\Models\Organization::query()->find($visit->organization_id);
+        if ($organization === null) {
+            return;
+        }
+
+        app(WorkflowQueueReleaseService::class)->enqueueCashier($organization, $visit);
     }
 
     protected function resolveTarget(Visit $visit, ?string $toCode, ?FacilityWorkflow $workflow = null): ?WorkflowStage