Add Milestones 1 & 2: full-stack POS foundation with admin UI

- Node/Express/TypeScript API under /api/v1 with JWT auth (login, refresh, logout, /me)
- Prisma schema: vendors, users, roles, products, categories, taxes, transactions
- SQLite for local dev; Postgres via docker-compose for production
- Full CRUD routes for vendors, users, categories, taxes, products with Zod validation and RBAC
- Paginated list endpoints scoped per vendor; refresh token rotation
- React/TypeScript admin SPA (Vite): login, protected routing, sidebar layout
- Pages: Dashboard, Catalog (tabbed Products/Categories/Taxes), Users, Vendor Settings
- Shared UI: Table, Modal, FormField, Btn, PageHeader components
- Multi-stage Dockerfile; docker-compose with Postgres healthcheck
- Seed script with demo vendor and owner account
- INSTRUCTIONS.md, ROADMAP.md, .claude/launch.json for dev server config

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

client/node_modules/@babel/traverse/lib/path/inference/util.js

@@ -0,0 +1,28 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.createUnionType = createUnionType;
+var _t = require("@babel/types");
+const {
+  createFlowUnionType,
+  createTSUnionType,
+  createUnionTypeAnnotation,
+  isFlowType,
+  isTSType
+} = _t;
+function createUnionType(types) {
+  if (types.every(v => isFlowType(v))) {
+    if (createFlowUnionType) {
+      return createFlowUnionType(types);
+    }
+    return createUnionTypeAnnotation(types);
+  } else if (types.every(v => isTSType(v))) {
+    if (createTSUnionType) {
+      return createTSUnionType(types);
+    }
+  }
+}
+
+//# sourceMappingURL=util.js.map