Add self-hosted auth, admin API, and owner web dashboard

- Replace Clerk with self-hosted JWT auth (register/login/verify, bcrypt
  passwords, Gmail OTP with console fallback)
- Add lib/db.ts pg pool + transaction helpers; seed script migrates legacy
  Clerk-era schema (drop clerk_id, enforce UUID ids and unique email)
- Add owner-gated admin API: stats, users, drivers CRUD, rides
- Add dashboard/ Vite React owner dashboard (login, overview, users,
  fleet, rides) with dev-server proxy to avoid Expo CORS middleware
- Add scripts/set-owner.mjs for role management

dashboard/vite.config.ts

@@ -0,0 +1,25 @@
+import { defineConfig, type ProxyOptions } from 'vite'
+import react from '@vitejs/plugin-react'
+
+const API_TARGET = process.env.API_PROXY_TARGET ?? 'http://localhost:8081'
+
+// Proxy API calls through the dev server so the dashboard is same-origin.
+// Expo's dev-server CORS middleware rejects foreign Origin headers, so
+// the proxy strips them before forwarding.
+const proxy: Record<string, ProxyOptions> = {}
+for (const path of ['/auth', '/user', '/ride', '/driver', '/admin']) {
+  proxy[path] = {
+    target: API_TARGET,
+    changeOrigin: true,
+    configure: (p) => {
+      p.on('proxyReq', (req) => {
+        req.removeHeader('origin')
+      })
+    },
+  }
+}
+
+export default defineConfig({
+  plugins: [react()],
+  server: { proxy },
+})