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/postcss/lib/parse.js

@@ -0,0 +1,42 @@
+'use strict'
+
+let Container = require('./container')
+let Input = require('./input')
+let Parser = require('./parser')
+
+function parse(css, opts) {
+  let input = new Input(css, opts)
+  let parser = new Parser(input)
+  try {
+    parser.parse()
+  } catch (e) {
+    if (process.env.NODE_ENV !== 'production') {
+      if (e.name === 'CssSyntaxError' && opts && opts.from) {
+        if (/\.scss$/i.test(opts.from)) {
+          e.message +=
+            '\nYou tried to parse SCSS with ' +
+            'the standard CSS parser; ' +
+            'try again with the postcss-scss parser'
+        } else if (/\.sass/i.test(opts.from)) {
+          e.message +=
+            '\nYou tried to parse Sass with ' +
+            'the standard CSS parser; ' +
+            'try again with the postcss-sass parser'
+        } else if (/\.less$/i.test(opts.from)) {
+          e.message +=
+            '\nYou tried to parse Less with ' +
+            'the standard CSS parser; ' +
+            'try again with the postcss-less parser'
+        }
+      }
+    }
+    throw e
+  }
+
+  return parser.root
+}
+
+module.exports = parse
+parse.default = parse
+
+Container.registerParse(parse)