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

environment.d.ts

@@ -4,12 +4,27 @@ export {};
 declare global {
   namespace NodeJS {
     interface ProcessEnv {
-      // clerk publishable key
-      EXPO_PUBLIC_CLERK_PUBLISHABLE_KEY: string;
+      // self-hosted auth
+      AUTH_JWT_SECRET: string;
+      GOOGLE_OAUTH_CLIENT_ID: string;
 
-      // postgres db url (neon db)
+      // postgres db url (self-hosted)
       DATABASE_URL: string;
 
+      // expo api server url
+      EXPO_PUBLIC_SERVER_URL: string;
+
+      // google oauth client ids
+      EXPO_PUBLIC_GOOGLE_AUTH_WEB_CLIENT_ID: string;
+      EXPO_PUBLIC_GOOGLE_AUTH_IOS_CLIENT_ID: string;
+      EXPO_PUBLIC_GOOGLE_AUTH_ANDROID_CLIENT_ID: string;
+
+      // gmail api
+      GMAIL_CLIENT_ID: string;
+      GMAIL_CLIENT_SECRET: string;
+      GMAIL_REFRESH_TOKEN: string;
+      GMAIL_FROM: string;
+
       // geoapify api key
       EXPO_PUBLIC_GEOAPIFY_API_KEY: string;