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/dotenv/lib/env-options.js

@@ -0,0 +1,28 @@
+// ../config.js accepts options via environment variables
+const options = {}
+
+if (process.env.DOTENV_CONFIG_ENCODING != null) {
+  options.encoding = process.env.DOTENV_CONFIG_ENCODING
+}
+
+if (process.env.DOTENV_CONFIG_PATH != null) {
+  options.path = process.env.DOTENV_CONFIG_PATH
+}
+
+if (process.env.DOTENV_CONFIG_QUIET != null) {
+  options.quiet = process.env.DOTENV_CONFIG_QUIET
+}
+
+if (process.env.DOTENV_CONFIG_DEBUG != null) {
+  options.debug = process.env.DOTENV_CONFIG_DEBUG
+}
+
+if (process.env.DOTENV_CONFIG_OVERRIDE != null) {
+  options.override = process.env.DOTENV_CONFIG_OVERRIDE
+}
+
+if (process.env.DOTENV_CONFIG_DOTENV_KEY != null) {
+  options.DOTENV_KEY = process.env.DOTENV_CONFIG_DOTENV_KEY
+}
+
+module.exports = options