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/safer-buffer/package.json

@@ -0,0 +1,34 @@
+{
+  "name": "safer-buffer",
+  "version": "2.1.2",
+  "description": "Modern Buffer API polyfill without footguns",
+  "main": "safer.js",
+  "scripts": {
+    "browserify-test": "browserify --external tape tests.js > browserify-tests.js && tape browserify-tests.js",
+    "test": "standard && tape tests.js"
+  },
+  "author": {
+    "name": "Nikita Skovoroda",
+    "email": "chalkerx@gmail.com",
+    "url": "https://github.com/ChALkeR"
+  },
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/ChALkeR/safer-buffer.git"
+  },
+  "bugs": {
+    "url": "https://github.com/ChALkeR/safer-buffer/issues"
+  },
+  "devDependencies": {
+    "standard": "^11.0.1",
+    "tape": "^4.9.0"
+  },
+  "files": [
+    "Porting-Buffer.md",
+    "Readme.md",
+    "tests.js",
+    "dangerous.js",
+    "safer.js"
+  ]
+}