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>

server/node_modules/depd/lib/browser/index.js

@@ -0,0 +1,77 @@
+/*!
+ * depd
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = depd
+
+/**
+ * Create deprecate for namespace in caller.
+ */
+
+function depd (namespace) {
+  if (!namespace) {
+    throw new TypeError('argument namespace is required')
+  }
+
+  function deprecate (message) {
+    // no-op in browser
+  }
+
+  deprecate._file = undefined
+  deprecate._ignored = true
+  deprecate._namespace = namespace
+  deprecate._traced = false
+  deprecate._warned = Object.create(null)
+
+  deprecate.function = wrapfunction
+  deprecate.property = wrapproperty
+
+  return deprecate
+}
+
+/**
+ * Return a wrapped function in a deprecation message.
+ *
+ * This is a no-op version of the wrapper, which does nothing but call
+ * validation.
+ */
+
+function wrapfunction (fn, message) {
+  if (typeof fn !== 'function') {
+    throw new TypeError('argument fn must be a function')
+  }
+
+  return fn
+}
+
+/**
+ * Wrap property in a deprecation message.
+ *
+ * This is a no-op version of the wrapper, which does nothing but call
+ * validation.
+ */
+
+function wrapproperty (obj, prop, message) {
+  if (!obj || (typeof obj !== 'object' && typeof obj !== 'function')) {
+    throw new TypeError('argument obj must be object')
+  }
+
+  var descriptor = Object.getOwnPropertyDescriptor(obj, prop)
+
+  if (!descriptor) {
+    throw new TypeError('must call property on owner object')
+  }
+
+  if (!descriptor.configurable) {
+    throw new TypeError('property must be configurable')
+  }
+}