Build driver app, Uber-style dispatch, POI suggestions; fix map tiles

Driver side (was a stub):
- In-app driver onboarding: a driver-role user creates their own linked
  drivers profile (driver/profile+api GET/POST/PATCH).
- Driver dashboard: online/offline toggle, today's earnings, incoming
  request cards (accept/decline), active ride panel (start/complete trip).
  Polls /driver/rides every 4s while online.
- Location heartbeat (use-driver-location): watchPositionAsync pings
  /driver/location every ~5s; restarts the watch on app foreground so a
  backgrounded driver doesn't go permanently stale and miss requests.

Dispatch (auto-match nearest, Uber-style):
- Ride state machine: requested -> accepted -> en_route -> completed/cancelled
  with a nullable driver_id until matched (lib/dispatch.matchNextDriver).
- matchNextDriver locks the ride (SELECT FOR UPDATE), expires 15s-stale
  offers, picks the nearest eligible driver of the matching service by
  haversine, offers one at a time. Called from ride/create, ride/[id] GET
  (lazy match on the rider's poll), and ride/[id]/respond (on decline).
- ride/create is now a request endpoint (driver_id NULL, status=requested,
  service); drops the pre-match driver_id payment reconciliation.
- ride/[id] GET returns status/service/nullable driver; PATCH handles rider
  cancel + driver en_route/completed. ride/list backs the history tabs.

Rider flow (best experience):
- confirm-ride is now a request screen: single trip fare + nearest-driver
  ETA + cash/card + Request Ride -> live status. Periodically polls online
  drivers of the selected service and disables Request when none are
  online (prevents the "stuck searching forever" state).
- book-ride is the live ride-status screen (searching -> accepted ->
  en_route -> completed/cancelled + Cancel), polling every 3s.
- lib/request-ride unifies the Areeba card flow + cash path.
- Map reads /driver/nearby (real positions, service-filtered); lib/map
  adds calculateTripFare + service-aware fares.

POI suggestions:
- lib/places (Google Nearby Search) + nearby-suggestions chips for
  mall/hospital/pharmacy/restaurant on the home screen.

Service categories now drive both matching and a per-service fare
multiplier (car 1.0 / moto 0.7 / courier 0.85 / chauffeur 1.5).

Map tiles: react-native-maps rendered blank on Android because no Google
Maps key was set. Switched app.json -> app.config.js so
android.config.googleMaps.apiKey is injected from
EXPO_PUBLIC_GOOGLE_API_KEY at build time (keeps the key out of git).
Requires a native rebuild (expo run:android) to take effect.

Also includes the prior payment/auth hardening (server-authoritative
payment_orders ledger with double-spend guards, peppered OTP, register
TOCTOU fix, stats cents fix) that was left uncommitted.

Co-Authored-By: Claude <noreply@anthropic.com>

types/type.d.ts

@@ -1,13 +1,20 @@
 import { TextInputProps, TouchableOpacityProps } from "react-native";
 
 declare interface Driver {
-  driver_id: number;
+  id: number;
   first_name: string;
   last_name: string;
   profile_image_url: string;
   car_image_url: string;
   car_seats: number;
   rating: number;
+  service: string;
+  online?: boolean;
+  latitude?: number | null;
+  longitude?: number | null;
+  user_id?: string | null;
+  car_model?: string | null;
+  last_seen?: string | null;
 }
 
 declare interface MarkerData {
@@ -21,6 +28,9 @@ declare interface MarkerData {
   rating: number;
   first_name: string;
   last_name: string;
+  service?: string;
+  online?: boolean;
+  car_model?: string | null;
   time?: number;
   price?: string;
 }
@@ -34,6 +44,7 @@ declare interface MapProps {
 }
 
 declare interface Ride {
+  ride_id?: number;
   origin_address: string;
   destination_address: string;
   origin_latitude: number;
@@ -43,16 +54,46 @@ declare interface Ride {
   ride_time: number;
   fare_price: number;
   payment_status: string;
-  driver_id: number;
-  user_email: string;
+  status: string;
+  service: string;
+  driver_id: number | null;
+  user_id?: string;
+  payment_order_id?: string | null;
   created_at: string;
+  completed_at?: string | null;
+  cancelled_at?: string | null;
   driver: {
-    first_name: string;
-    last_name: string;
-    car_seats: number;
+    id: number | null;
+    first_name: string | null;
+    last_name: string | null;
+    car_seats: number | null;
+    profile_image_url: string | null;
+    car_image_url: string | null;
+    rating: number | null;
+    service: string | null;
+    car_model: string | null;
   };
 }
 
+declare interface RideOffer {
+  id: number;
+  ride_id: number;
+  driver_id: number;
+  status: string;
+  offered_at: string;
+  responded_at: string | null;
+  ride?: Ride;
+}
+
+declare interface NearbyPlace {
+  name: string;
+  address: string;
+  latitude: number;
+  longitude: number;
+  distanceMeters?: number;
+  category?: string;
+}
+
 declare interface ButtonProps extends TouchableOpacityProps {
   title: string;
   bgVariant?: "primary" | "secondary" | "danger" | "outline" | "success";