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/gensync/package.json

@@ -0,0 +1,37 @@
+{
+  "name": "gensync",
+  "version": "1.0.0-beta.2",
+  "license": "MIT",
+  "description": "Allows users to use generators in order to write common functions that can be both sync or async.",
+  "main": "index.js",
+  "author": "Logan Smyth <loganfsmyth@gmail.com>",
+  "homepage": "https://github.com/loganfsmyth/gensync",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/loganfsmyth/gensync.git"
+  },
+  "scripts": {
+    "test": "jest"
+  },
+  "engines": {
+    "node": ">=6.9.0"
+  },
+  "keywords": [
+    "async",
+    "sync",
+    "generators",
+    "async-await",
+    "callbacks"
+  ],
+  "devDependencies": {
+    "babel-core": "^6.26.3",
+    "babel-preset-env": "^1.6.1",
+    "eslint": "^4.19.1",
+    "eslint-config-prettier": "^2.9.0",
+    "eslint-plugin-node": "^6.0.1",
+    "eslint-plugin-prettier": "^2.6.0",
+    "flow-bin": "^0.71.0",
+    "jest": "^22.4.3",
+    "prettier": "^1.12.1"
+  }
+}