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/terminal-highlight.js

@@ -0,0 +1,70 @@
+'use strict'
+
+let pico = require('picocolors')
+
+let tokenizer = require('./tokenize')
+
+let Input
+
+function registerInput(dependant) {
+  Input = dependant
+}
+
+const HIGHLIGHT_THEME = {
+  ';': pico.yellow,
+  ':': pico.yellow,
+  '(': pico.cyan,
+  ')': pico.cyan,
+  '[': pico.yellow,
+  ']': pico.yellow,
+  '{': pico.yellow,
+  '}': pico.yellow,
+  'at-word': pico.cyan,
+  'brackets': pico.cyan,
+  'call': pico.cyan,
+  'class': pico.yellow,
+  'comment': pico.gray,
+  'hash': pico.magenta,
+  'string': pico.green
+}
+
+function getTokenType([type, value], processor) {
+  if (type === 'word') {
+    if (value[0] === '.') {
+      return 'class'
+    }
+    if (value[0] === '#') {
+      return 'hash'
+    }
+  }
+
+  if (!processor.endOfFile()) {
+    let next = processor.nextToken()
+    processor.back(next)
+    if (next[0] === 'brackets' || next[0] === '(') return 'call'
+  }
+
+  return type
+}
+
+function terminalHighlight(css) {
+  let processor = tokenizer(new Input(css), { ignoreErrors: true })
+  let result = ''
+  while (!processor.endOfFile()) {
+    let token = processor.nextToken()
+    let color = HIGHLIGHT_THEME[getTokenType(token, processor)]
+    if (color) {
+      result += token[1]
+        .split(/\r?\n/)
+        .map(i => color(i))
+        .join('\n')
+    } else {
+      result += token[1]
+    }
+  }
+  return result
+}
+
+terminalHighlight.registerInput = registerInput
+
+module.exports = terminalHighlight