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/@esbuild/win32-x64/README.md

@@ -0,0 +1,3 @@
+# esbuild
+
+This is the Windows 64-bit binary for esbuild, a JavaScript bundler and minifier. See https://github.com/evanw/esbuild for details.

client/node_modules/@esbuild/win32-x64/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "@esbuild/win32-x64",
+  "version": "0.21.5",
+  "description": "The Windows 64-bit binary for esbuild, a JavaScript bundler.",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/evanw/esbuild.git"
+  },
+  "license": "MIT",
+  "preferUnplugged": true,
+  "engines": {
+    "node": ">=12"
+  },
+  "os": [
+    "win32"
+  ],
+  "cpu": [
+    "x64"
+  ]
+}