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

components/oauth.tsx

@@ -1,10 +1,11 @@
-import { useOAuth } from "@clerk/clerk-expo";
+import * as Google from "expo-auth-session/providers/google";
 import { router } from "expo-router";
-import { useCallback } from "react";
+import { useCallback, useEffect } from "react";
 import { Image, Text, View, Alert } from "react-native";
 
 import { icons } from "@/constants";
-import { googleOAuth } from "@/lib/auth";
+import { googleAuth } from "@/lib/auth";
+import { useSession } from "@/lib/session";
 
 import { CustomButton } from "./custom-button";
 
@@ -13,23 +14,41 @@ type OAuthProps = {
 };
 
 export const OAuth = ({ title }: OAuthProps) => {
-  const { startOAuthFlow } = useOAuth({ strategy: "oauth_google" });
+  const { setSession } = useSession();
 
-  const handleGoogleOAuth = useCallback(async () => {
-    try {
-      const result = await googleOAuth(startOAuthFlow);
+  const [request, response, promptAsync] = Google.useIdTokenAuthRequest({
+    clientId: process.env.EXPO_PUBLIC_GOOGLE_AUTH_WEB_CLIENT_ID,
+    iosClientId: process.env.EXPO_PUBLIC_GOOGLE_AUTH_IOS_CLIENT_ID,
+    androidClientId: process.env.EXPO_PUBLIC_GOOGLE_AUTH_ANDROID_CLIENT_ID,
+  });
 
-      if (result?.code === "session_exists" || result?.code === "success") {
-        router.replace("/");
-      }
-    } catch (err: any) {
-      console.error("OAuth error", err);
-      Alert.alert(
-        "Google sign-in failed",
-        err?.errors?.[0]?.longMessage || err?.message || "Please try again.",
-      );
+  useEffect(() => {
+    if (response?.type !== "success") return;
+
+    const idToken = response.params?.id_token;
+
+    if (!idToken) {
+      Alert.alert("Google sign-in failed", "No token returned. Try again.");
+      return;
     }
-  }, [startOAuthFlow]);
+
+    void (async () => {
+      try {
+        await setSession(await googleAuth(idToken));
+        router.replace("/");
+      } catch (err: any) {
+        console.error("OAuth error", err);
+        Alert.alert(
+          "Google sign-in failed",
+          err?.message || "Please try again.",
+        );
+      }
+    })();
+  }, [response, setSession]);
+
+  const handleGoogleOAuth = useCallback(() => {
+    void promptAsync();
+  }, [promptAsync]);
 
   return (
     <View>
@@ -55,6 +74,7 @@ export const OAuth = ({ title }: OAuthProps) => {
         bgVariant="outline"
         textVariant="primary"
         onPress={handleGoogleOAuth}
+        disabled={!request}
       />
     </View>
   );