Rebrand to Waseel, swap Stripe for Areeba, add phone-ready auth and DB seed

- Rename app: Waseel (name, slug, scheme waseel://, com.waseel.app ids, splash)
- Payments: replace Stripe with Areeba hosted checkout (create/verify API routes,
  lib/areeba.ts, WebBrowser-based payment flow)
- Maps: migrate address autocomplete to Places API (New), drop legacy library
- Web support: map stub for web (native maps are iOS/Android only)
- Auth: keep email + Google OAuth; fix OAuth redirect for Expo Go
- Add scripts/seed-db.mjs (schema + Lebanese driver seed)
- Pin Expo SDK 51 compatible package versions

app/(auth)/sign-up.tsx

@@ -114,7 +114,7 @@ const SignUp = () => {
         <View className="p-5">
           <InputField
             label="Name"
-            placeholder="John Doe"
+            placeholder="Karim Haddad"
             icon={icons.person}
             value={form.name}
             onChangeText={(value) =>
@@ -128,7 +128,7 @@ const SignUp = () => {
 
           <InputField
             label="Email"
-            placeholder="john.doe@email.com"
+            placeholder="karim@email.com"
             icon={icons.email}
             value={form.email}
             onChangeText={(value) =>