feat(packages): add standalone auth and payment

packages/payment/package.json

@@ -1,13 +1,17 @@
 {
   "name": "@marketplaces/payment",
   "version": "0.1.0",
-  "description": "Shared payment/finance client (FX, pricing, checkout gateways) for marketplaces projects. Thin by design — payment business logic stays server-side per Phase 1/7 backend contracts.",
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
+  "description": "Standalone Angular payment UI and central payment API client.",
+  "module": "dist/fesm2022/marketplaces-payment.mjs",
+  "typings": "dist/types/marketplaces-payment.d.ts",
   "files": ["dist"],
   "scripts": {
-    "build": "tsc -p tsconfig.json",
-    "test": "echo \"no tests yet\" && exit 0"
+    "build": "ng-packagr -p ng-package.json -c tsconfig.json",
+    "test": "node --test test/*.test.mjs"
+  },
+  "dependencies": {
+    "qrcode": "^1.5.4",
+    "tslib": "^2.8.0"
   },
   "peerDependencies": {
     "@angular/core": ">=22.0.0",