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/bin/vite.js

@@ -0,0 +1,61 @@
+#!/usr/bin/env node
+import { performance } from 'node:perf_hooks'
+
+if (!import.meta.url.includes('node_modules')) {
+  try {
+    // only available as dev dependency
+    await import('source-map-support').then((r) => r.default.install())
+  } catch (e) {}
+}
+
+global.__vite_start_time = performance.now()
+
+// check debug mode first before requiring the CLI.
+const debugIndex = process.argv.findIndex((arg) => /^(?:-d|--debug)$/.test(arg))
+const filterIndex = process.argv.findIndex((arg) =>
+  /^(?:-f|--filter)$/.test(arg),
+)
+const profileIndex = process.argv.indexOf('--profile')
+
+if (debugIndex > 0) {
+  let value = process.argv[debugIndex + 1]
+  if (!value || value.startsWith('-')) {
+    value = 'vite:*'
+  } else {
+    // support debugging multiple flags with comma-separated list
+    value = value
+      .split(',')
+      .map((v) => `vite:${v}`)
+      .join(',')
+  }
+  process.env.DEBUG = `${
+    process.env.DEBUG ? process.env.DEBUG + ',' : ''
+  }${value}`
+
+  if (filterIndex > 0) {
+    const filter = process.argv[filterIndex + 1]
+    if (filter && !filter.startsWith('-')) {
+      process.env.VITE_DEBUG_FILTER = filter
+    }
+  }
+}
+
+function start() {
+  return import('../dist/node/cli.js')
+}
+
+if (profileIndex > 0) {
+  process.argv.splice(profileIndex, 1)
+  const next = process.argv[profileIndex]
+  if (next && !next.startsWith('-')) {
+    process.argv.splice(profileIndex, 1)
+  }
+  const inspector = await import('node:inspector').then((r) => r.default)
+  const session = (global.__vite_profile_session = new inspector.Session())
+  session.connect()
+  session.post('Profiler.enable', () => {
+    session.post('Profiler.start', start)
+  })
+} else {
+  start()
+}