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/.vite/deps/react-dom_client.js

@@ -0,0 +1,38 @@
+import {
+  require_react_dom
+} from "./chunk-XPR23Y44.js";
+import {
+  __commonJS
+} from "./chunk-I4MZPW7S.js";
+
+// node_modules/react-dom/client.js
+var require_client = __commonJS({
+  "node_modules/react-dom/client.js"(exports) {
+    var m = require_react_dom();
+    if (false) {
+      exports.createRoot = m.createRoot;
+      exports.hydrateRoot = m.hydrateRoot;
+    } else {
+      i = m.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;
+      exports.createRoot = function(c, o) {
+        i.usingClientEntryPoint = true;
+        try {
+          return m.createRoot(c, o);
+        } finally {
+          i.usingClientEntryPoint = false;
+        }
+      };
+      exports.hydrateRoot = function(c, h, o) {
+        i.usingClientEntryPoint = true;
+        try {
+          return m.hydrateRoot(c, h, o);
+        } finally {
+          i.usingClientEntryPoint = false;
+        }
+      };
+    }
+    var i;
+  }
+});
+export default require_client();
+//# sourceMappingURL=react-dom_client.js.map