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

scripts/set-owner.mjs

@@ -0,0 +1,44 @@
+// Promotes (or demotes) a user's role. Usage:
+//   node scripts/set-owner.mjs owner@example.com owner
+//   node scripts/set-owner.mjs owner@example.com rider
+
+import pg from "pg";
+import { readFileSync } from "fs";
+
+const [email, role = "owner"] = process.argv.slice(2);
+
+if (!email) {
+  console.error("Usage: node scripts/set-owner.mjs <email> [role]");
+  console.error("Roles: owner | driver | rider");
+  process.exit(1);
+}
+
+const env = readFileSync(new URL("../.env", import.meta.url), "utf8");
+const databaseUrl = env
+  .split("\n")
+  .find((l) => l.startsWith("DATABASE_URL="))
+  ?.split("=")
+  .slice(1)
+  .join("=")
+  .trim()
+  .replace(/^"|"$/g, "");
+
+const pool = new pg.Pool({ connectionString: databaseUrl });
+
+try {
+  const { rows } = await pool.query(
+    `UPDATE users SET email_verified = TRUE, role = $2 WHERE email = $1 RETURNING id, email, role`,
+    [email.toLowerCase(), role],
+  );
+
+  if (!rows[0]) {
+    console.error(`No user found with email ${email}`);
+    process.exit(1);
+  }
+
+  console.log(
+    `Updated ${rows[0].email}: role=${rows[0].role}, email_verified=true`,
+  );
+} finally {
+  await pool.end();
+}