feat(pos): receipt VAT breakdown — per-line rate + subtotals by type

work/runtime-status.json

@@ -2,11 +2,11 @@
   "feature_id": "CHECKOUT-STOCK-RECHECK",
   "stage": "build",
   "agent": "implementer",
-  "action": "Add Pagination component to all admin list pages",
+  "action": "Implementar desglose IVA en backend + ReceiptModal",
   "state": "running",
   "next_agent": "reviewer",
   "waiting_for": "build",
-  "updated_at": "2026-08-26T20:49:22.330241Z",
+  "updated_at": "2026-08-26T20:57:05.300295Z",
   "timeline": [
     {
       "ts": "2026-08-26T17:21:37Z",
@@ -259,6 +259,20 @@
       "stage": "build",
       "state": "running",
       "message": "Add pagination to admin orders page"
+    },
+    {
+      "ts": "2026-08-26T20:56:56.601386Z",
+      "agent": "architect",
+      "stage": "design",
+      "state": "done",
+      "message": "Diseño: vatRate por línea + taxBreakdown por tipo en receipt"
+    },
+    {
+      "ts": "2026-08-26T20:56:56.601386Z",
+      "agent": "implementer",
+      "stage": "build",
+      "state": "running",
+      "message": "Implementar desglose IVA en backend + ReceiptModal"
     }
   ],
   "gates": {