feat(mobile): backend sync auth + ban handling + scan push

Wires the React Native app to the vineye-admin backend so user accounts
and scans flow into the admin panel, and so a ban applied via the panel
takes effect on the device on the next app boot (or sooner on any
authenticated request).

Core
- Install expo-secure-store for storing the better-auth session token.
  Falls back to AsyncStorage on web/Expo Go where SecureStore is unavailable.
- New tokenStorage service with saveToken/getToken/removeToken and a
  stable per-install getDeviceId() (used to derive the deterministic
  password the backend signs sign-up/sign-in with).
- Extend the API client with apiPost(), automatic Bearer header attach,
  and a tiny pub/sub (authEvents) that emits 'unauthorized' on 401 and
  'banned' on 403 with banned: true. Handlers are global so any request
  can trigger logout or open the BannedModal.

Auth
- New services/api/auth.ts: syncUser (POST /auth/sync), fetchMe (GET
  /auth/me), signOutServer (POST /auth/sign-out, best-effort).
- types/auth.User now carries optional banned/bannedReason/role/xp/level
  hydrated from the backend.
- AuthContext.login is now async vs the backend; the server-side id
  replaces any locally-generated UUID so mobile and admin agree on the
  same User row. Hydration is optimistic from AsyncStorage (never blocks
  the splash on the network) and a background fetchMe picks up server
  ban changes. logout/resetAccount best-effort revoke the server session.
- AuthChoiceScreen surfaces sign-up failures through a toast instead of
  silently dropping the user into the app with no account.

Ban UX
- BannedModal: non-dismissible Tailwind modal with the bannedReason
  interpolated and a CTA that calls resetAccount. Mounted globally in
  RootNavigator and toggled by isBanned from AuthContext.
- Banned state is persisted alongside the User in AsyncStorage so the
  modal stays visible across restarts even when /auth/me is unreachable.

Scan sync
- New services/api/scans.pushScan() that maps the mobile ScanRecord to
  the backend body: confidence /100 (0-100 → 0-1 backend), diseaseSlug
  passthrough (server resolves to diseaseId), latitude/longitude direct,
  imageUrl always null (V1 keeps photos local-only), customName dropped
  (no column server-side, stays in AsyncStorage).
- useHistory.addScan now fires pushScan after the local save and ignores
  failures so the app stays usable offline.

i18n
- New keys auth.errors.network/signupFailed and auth.banned.{title,
  description,descriptionNoReason,cta}. The fr/en files also include
  scanner gallery placeholder keys from an adjacent feature WIP — not
  part of this commit's scope but bundled here to avoid splitting a
  small JSON.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

VinEye/package.json

@@ -28,12 +28,13 @@
     "expo-dev-client": "~6.0.21",
     "expo-haptics": "~15.0.8",
     "expo-image": "~3.0.11",
-    "expo-image-manipulator": "^55.0.15",
+    "expo-image-manipulator": "^14.0.8",
     "expo-linear-gradient": "~15.0.8",
     "expo-localization": "~17.0.8",
     "expo-location": "~19.0.8",
     "expo-navigation-bar": "~5.0.10",
     "expo-network": "~8.0.8",
+    "expo-secure-store": "^55.0.13",
     "expo-status-bar": "~3.0.9",
     "i18next": "^26.0.1",
     "jpeg-js": "^0.4.4",

VinEye/pnpm-lock.yaml

@@ -66,8 +66,8 @@ importers:
         specifier: ~3.0.11
         version: 3.0.11(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native-web@0.21.2(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)
       expo-image-manipulator:
-        specifier: ^55.0.15
-        version: 55.0.15(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))
+        specifier: ^14.0.8
+        version: 14.0.8(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))
       expo-linear-gradient:
         specifier: ~15.0.8
         version: 15.0.8(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)
@@ -83,6 +83,9 @@ importers:
       expo-network:
         specifier: ~8.0.8
         version: 8.0.8(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react@19.1.0)
+      expo-secure-store:
+        specifier: ^55.0.13
+        version: 55.0.13(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))
       expo-status-bar:
         specifier: ~3.0.9
         version: 3.0.9(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)
@@ -1784,13 +1787,13 @@ packages:
     peerDependencies:
       expo: '*'
 
-  expo-image-loader@55.0.0:
-    resolution: {integrity: sha512-NOjp56wDrfuA5aiNAybBIjqIn1IxKeGJ8CECWZncQ/GzjZfyTYAHTCyeApYkdKkMBLHINzI4BbTGSlbCa0fXXQ==}
+  expo-image-loader@6.0.0:
+    resolution: {integrity: sha512-nKs/xnOGw6ACb4g26xceBD57FKLFkSwEUTDXEDF3Gtcu3MqF3ZIYd3YM+sSb1/z9AKV1dYT7rMSGVNgsveXLIQ==}
     peerDependencies:
       expo: '*'
 
-  expo-image-manipulator@55.0.15:
-    resolution: {integrity: sha512-AbwC1PHhoJb7OeMlbb52RK/nsTZMAuJDz2RlbDHtrD6zFOKV1LcMomdJqVYCC5v7ILH5qLF01iygpZt54GlydQ==}
+  expo-image-manipulator@14.0.8:
+    resolution: {integrity: sha512-sXsXjm7rIxLWZe0j2A41J/Ph53PpFJRdyzJ3EQ/qetxLUvS2m3K1sP5xy37px43qCf0l79N/i6XgFgenFV36/Q==}
     peerDependencies:
       expo: '*'
 
@@ -1860,6 +1863,11 @@ packages:
       expo: '*'
       react: '*'
 
+  expo-secure-store@55.0.13:
+    resolution: {integrity: sha512-I6r0JNO1Fd4o0Gu7Ixiic7s89lqgdUHq17uBH9y1f/AntoyKn71TdtYJH82RgfsBbu5qNVzrwImmvlANyOlITQ==}
+    peerDependencies:
+      expo: '*'
+
   expo-server@1.0.5:
     resolution: {integrity: sha512-IGR++flYH70rhLyeXF0Phle56/k4cee87WeQ4mamS+MkVAVP+dDlOHf2nN06Z9Y2KhU0Gp1k+y61KkghF7HdhA==}
     engines: {node: '>=20.16.0'}
@@ -4863,9 +4871,7 @@ snapshots:
       metro-runtime: 0.83.5
     transitivePeerDependencies:
       - '@babel/core'
-      - bufferutil
       - supports-color
-      - utf-8-validate
     optional: true
 
   '@react-native/normalize-colors@0.74.89': {}
@@ -5681,14 +5687,14 @@ snapshots:
     dependencies:
       expo: 54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)
 
-  expo-image-loader@55.0.0(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)):
+  expo-image-loader@6.0.0(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)):
     dependencies:
       expo: 54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)
 
-  expo-image-manipulator@55.0.15(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)):
+  expo-image-manipulator@14.0.8(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)):
     dependencies:
       expo: 54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)
-      expo-image-loader: 55.0.0(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))
+      expo-image-loader: 6.0.0(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))
 
   expo-image@3.0.11(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native-web@0.21.2(react-dom@19.1.0(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0):
     dependencies:
@@ -5759,6 +5765,10 @@ snapshots:
       expo: 54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)
       react: 19.1.0
 
+  expo-secure-store@55.0.13(expo@54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)):
+    dependencies:
+      expo: 54.0.33(@babel/core@7.29.0)(react-native-webview@13.15.0(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0))(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0)
+
   expo-server@1.0.5: {}
 
   expo-status-bar@3.0.9(react-native@0.81.5(@babel/core@7.29.0)(@react-native/metro-config@0.84.1(@babel/core@7.29.0))(@types/react@19.1.17)(react@19.1.0))(react@19.1.0):

VinEye/src/components/auth/BannedModal.tsx

@@ -0,0 +1,52 @@
+import { Modal, View, Pressable } from 'react-native';
+import { useTranslation } from 'react-i18next';
+import { ShieldAlert } from 'lucide-react-native';
+
+import { Text } from '@/components/ui/text';
+import { useAuth } from '@/contexts/AuthContext';
+
+export function BannedModal() {
+  const { t } = useTranslation();
+  const { isBanned, bannedReason, resetAccount } = useAuth();
+
+  return (
+    <Modal
+      visible={isBanned}
+      transparent
+      animationType="fade"
+      statusBarTranslucent
+      onRequestClose={() => {
+        // Non-dismissible: ignore back button on Android.
+      }}
+    >
+      <View className="flex-1 items-center justify-center bg-black/70 px-6">
+        <View className="w-full max-w-[360px] rounded-3xl bg-white p-6 items-center">
+          <View className="w-16 h-16 rounded-full items-center justify-center bg-red-50 mb-4">
+            <ShieldAlert size={32} color="#DC2626" />
+          </View>
+
+          <Text className="text-xl font-bold text-[#1A1A1A] text-center">
+            {t('auth.banned.title')}
+          </Text>
+
+          <Text className="mt-3 text-sm text-[#475569] leading-5 text-center">
+            {bannedReason
+              ? t('auth.banned.description', { reason: bannedReason })
+              : t('auth.banned.descriptionNoReason')}
+          </Text>
+
+          <Pressable
+            onPress={() => {
+              void resetAccount();
+            }}
+            className="mt-6 w-full rounded-2xl bg-red-600 py-3.5 items-center active:opacity-80"
+          >
+            <Text className="text-base font-semibold text-white">
+              {t('auth.banned.cta')}
+            </Text>
+          </Pressable>
+        </View>
+      </View>
+    </Modal>
+  );
+}

VinEye/src/contexts/AuthContext.tsx

@@ -3,12 +3,25 @@ import {
   useCallback,
   useContext,
   useEffect,
+  useRef,
   useState,
 } from 'react';
-import * as Crypto from 'expo-crypto';
 
 import * as authStorage from '@/services/auth/authStorage';
 import { generateGuestUser } from '@/services/auth/randomUser';
+import {
+  getDeviceId,
+  getToken,
+  removeToken,
+  saveToken,
+} from '@/services/auth/tokenStorage';
+import {
+  fetchMe,
+  signOutServer,
+  syncUser,
+  type MobileServerUser,
+} from '@/services/api/auth';
+import { subscribeAuthEvents } from '@/services/api/authEvents';
 import type { User } from '@/types/auth';
 
 interface AuthContextValue {
@@ -17,6 +30,8 @@ interface AuthContextValue {
   isOnboardingComplete: boolean;
   hasAcceptedTerms: boolean;
   isLoading: boolean;
+  isBanned: boolean;
+  bannedReason: string | null;
   login: (name: string, email: string) => Promise<void>;
   loginAsGuest: () => Promise<void>;
   logout: () => Promise<void>;
@@ -27,13 +42,32 @@ interface AuthContextValue {
 
 const AuthContext = createContext<AuthContextValue | null>(null);
 
+function fromServerUser(server: MobileServerUser): User {
+  return {
+    id: server.id,
+    name: server.name,
+    email: server.email,
+    isGuest: false,
+    createdAt: server.createdAt,
+    role: server.role,
+    xp: server.xp,
+    level: server.level,
+    banned: server.banned,
+    bannedReason: server.bannedReason,
+  };
+}
+
 export function AuthProvider({ children }: { children: React.ReactNode }) {
   const [user, setUser] = useState<User | null>(null);
   const [isOnboardingComplete, setIsOnboardingComplete] = useState(false);
   const [hasAcceptedTerms, setHasAcceptedTerms] = useState(false);
   const [isLoading, setIsLoading] = useState(true);
+  const [isBanned, setIsBanned] = useState(false);
+  const [bannedReason, setBannedReason] = useState<string | null>(null);
+  const userRef = useRef<User | null>(null);
+  userRef.current = user;
 
-  // Hydrate from AsyncStorage on mount
+  // Optimistic hydration from AsyncStorage; never block the splash on the network.
   useEffect(() => {
     let alive = true;
     (async () => {
@@ -47,38 +81,118 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
         setUser(storedUser);
         setIsOnboardingComplete(onboarding);
         setHasAcceptedTerms(terms.accepted);
+        if (storedUser?.banned) {
+          setIsBanned(true);
+          setBannedReason(storedUser.bannedReason ?? null);
+        }
       } finally {
         if (alive) setIsLoading(false);
       }
     })();
+
+    // Background refresh: hit /auth/me to pick up server-side ban changes
+    // applied while the app was closed. Failures are silent (offline-friendly).
+    (async () => {
+      try {
+        const token = await getToken();
+        if (!token) return;
+        const res = await fetchMe();
+        if (!alive) return;
+        if (res.success) {
+          const fresh = fromServerUser(res.data.user);
+          setUser(fresh);
+          await authStorage.saveUser(fresh);
+          setIsBanned(fresh.banned ?? false);
+          setBannedReason(fresh.bannedReason ?? null);
+        }
+        // 401 → emitted by the client; subscribeAuthEvents handles logout
+        // 403 banned → also emitted by the client and handled below
+      } catch (err) {
+        if (__DEV__) console.warn('[Auth] fetchMe failed:', err);
+      }
+    })();
+
     return () => {
       alive = false;
     };
   }, []);
 
+  // React to 401/banned events emitted from anywhere in the app.
+  useEffect(() => {
+    const unsub = subscribeAuthEvents((event) => {
+      if (event.type === 'banned') {
+        setIsBanned(true);
+        setBannedReason(event.reason);
+        // Persist so the modal stays visible across restarts even if /auth/me
+        // is unreachable.
+        const current = userRef.current;
+        if (current) {
+          void authStorage.saveUser({
+            ...current,
+            banned: true,
+            bannedReason: event.reason,
+          });
+        }
+      } else if (event.type === 'unauthorized') {
+        // Token revoked or expired — wipe credentials and send the user
+        // back to the onboarding flow.
+        void (async () => {
+          await removeToken();
+          await authStorage.resetAuth();
+          setUser(null);
+          setIsOnboardingComplete(false);
+          setHasAcceptedTerms(false);
+          setIsBanned(false);
+          setBannedReason(null);
+        })();
+      }
+    });
+    return unsub;
+  }, []);
+
   const login = useCallback(async (name: string, email: string) => {
-    const newUser: User = {
-      id: Crypto.randomUUID(),
+    const deviceId = await getDeviceId();
+    const res = await syncUser({
       name: name.trim(),
       email: email.trim(),
-      isGuest: false,
-      createdAt: new Date().toISOString(),
-    };
-    await authStorage.saveUser(newUser);
-    setUser(newUser);
+      deviceId,
+    });
+    if (!res.success) {
+      // Surface the failure so the AuthChoiceScreen can show a toast and
+      // keep the user on the form instead of marking onboarding complete.
+      const msg = res.error.message || 'Network error';
+      throw new Error(msg);
+    }
+    const fresh = fromServerUser(res.data.user);
+    await saveToken(res.data.token);
+    await authStorage.saveUser(fresh);
+    setUser(fresh);
+    setIsBanned(fresh.banned ?? false);
+    setBannedReason(fresh.bannedReason ?? null);
   }, []);
 
   const loginAsGuest = useCallback(async () => {
     const newUser = generateGuestUser();
     await authStorage.saveUser(newUser);
     setUser(newUser);
+    setIsBanned(false);
+    setBannedReason(null);
   }, []);
 
   const logout = useCallback(async () => {
+    // Best-effort: revoke the server session, but never block the UI on it.
+    try {
+      await signOutServer();
+    } catch {
+      // ignored
+    }
+    await removeToken();
     await authStorage.resetAuth();
     setUser(null);
     setIsOnboardingComplete(false);
     setHasAcceptedTerms(false);
+    setIsBanned(false);
+    setBannedReason(null);
   }, []);
 
   const resetAccount = useCallback(async () => {
@@ -101,6 +215,8 @@ export function AuthProvider({ children }: { children: React.ReactNode }) {
     isOnboardingComplete,
     hasAcceptedTerms,
     isLoading,
+    isBanned,
+    bannedReason,
     login,
     loginAsGuest,
     logout,

VinEye/src/hooks/useHistory.ts

@@ -1,6 +1,7 @@
 import { useState, useEffect, useCallback } from 'react';
 import { storage } from '@/services/storage';
 import { buildMockScans } from '@/data/mockSeed';
+import { pushScan } from '@/services/api/scans';
 import type { ScanRecord } from '@/types/detection';
 
 export function useHistory() {
@@ -24,6 +25,10 @@ export function useHistory() {
       storage.set(storage.KEYS.SCAN_HISTORY, updated);
       return updated;
     });
+    // Best-effort sync to the backend so the scan shows up in the admin
+    // panel. Network errors are intentionally swallowed; the local state
+    // is the source of truth for the mobile UX.
+    void pushScan(record).catch(() => {});
   }, []);
 
   const deleteScan = useCallback(async (id: string) => {

VinEye/src/i18n/en.json

@@ -439,7 +439,10 @@
     "frontWarningTitle": "Front camera enabled",
     "frontWarningDescription": "For best results, use the rear camera.",
     "analyzingTitle": "Analyzing",
-    "analyzingSubtitle": "Identifying the plant…"
+    "analyzingSubtitle": "Identifying the plant…",
+    "pickFromGallery": "Pick from gallery",
+    "galleryComingSoonTitle": "Gallery coming soon",
+    "galleryComingSoonDescription": "This feature will be available in an upcoming update."
   },
   "result": {
     "vineDetected": "Vine detected!",
@@ -547,7 +550,15 @@
     "errors": {
       "nameTooShort": "Name must be at least 2 characters",
       "nameTooLong": "Name is too long (max 50 characters)",
-      "emailInvalid": "Invalid email"
+      "emailInvalid": "Invalid email",
+      "network": "No network connection",
+      "signupFailed": "Could not create account"
+    },
+    "banned": {
+      "title": "Account suspended",
+      "description": "Your account has been suspended: {{reason}}",
+      "descriptionNoReason": "Your account has been suspended. Please contact the administrator for more information.",
+      "cta": "Logout"
     }
   },
   "onboarding": {

VinEye/src/i18n/fr.json

@@ -439,7 +439,10 @@
     "frontWarningTitle": "Caméra avant activée",
     "frontWarningDescription": "Pour de meilleurs résultats, utilisez la caméra arrière.",
     "analyzingTitle": "Analyse en cours",
-    "analyzingSubtitle": "Identification de la plante…"
+    "analyzingSubtitle": "Identification de la plante…",
+    "pickFromGallery": "Choisir depuis la galerie",
+    "galleryComingSoonTitle": "Galerie bientôt disponible",
+    "galleryComingSoonDescription": "Cette fonctionnalité arrive dans une prochaine mise à jour."
   },
   "result": {
     "vineDetected": "Vigne détectée !",
@@ -547,7 +550,15 @@
     "errors": {
       "nameTooShort": "Le nom doit faire au moins 2 caractères",
       "nameTooLong": "Le nom est trop long (50 caractères max)",
-      "emailInvalid": "Email invalide"
+      "emailInvalid": "Email invalide",
+      "network": "Pas de connexion réseau",
+      "signupFailed": "Impossible de créer le compte"
+    },
+    "banned": {
+      "title": "Compte suspendu",
+      "description": "Votre compte a été suspendu : {{reason}}",
+      "descriptionNoReason": "Votre compte a été suspendu. Contactez l'administrateur pour plus d'informations.",
+      "cta": "Se déconnecter"
     }
   },
   "onboarding": {

VinEye/src/navigation/RootNavigator.tsx

@@ -2,6 +2,7 @@ import { ActivityIndicator, View } from 'react-native';
 import { createNativeStackNavigator } from '@react-navigation/native-stack';
 import { NavigationContainer } from '@react-navigation/native';
 
+import { BannedModal } from '@/components/auth/BannedModal';
 import SplashScreen from '@/screens/SplashScreen';
 import ResultScreen from '@/screens/ResultScreen';
 import SearchScreen from '@/screens/SearchScreen';
@@ -40,6 +41,7 @@ export default function RootNavigator() {
 
   return (
     <NavigationContainer linking={linking}>
+      <BannedModal />
       <Stack.Navigator
         initialRouteName={isOnboardingComplete ? 'Splash' : 'Onboarding'}
         screenOptions={{

VinEye/src/screens/onboarding/AuthChoiceScreen.tsx

@@ -6,6 +6,7 @@ import type { NativeStackNavigationProp } from '@react-navigation/native-stack';
 import { useTranslation } from 'react-i18next';
 import { ChevronLeft } from 'lucide-react-native';
 import Animated, { FadeIn } from 'react-native-reanimated';
+import { toast } from 'sonner-native';
 
 import { Text } from '@/components/ui/text';
 import { EmailNameForm } from '@/components/onboarding/EmailNameForm';
@@ -36,6 +37,10 @@ export default function AuthChoiceScreen() {
     try {
       await login(name, email);
       await completeOnboarding();
+    } catch (err) {
+      const message =
+        err instanceof Error ? err.message : t('auth.errors.network');
+      toast.error(t('auth.errors.signupFailed'), { description: message });
     } finally {
       setCreating(false);
     }

VinEye/src/services/api/auth.ts

@@ -0,0 +1,41 @@
+import { apiPost, apiGet } from "@/services/api/client";
+
+// Mirrors what /api/mobile/auth/* returns. Stays loose (Partial<>) so a
+// future schema bump on a single field does not crash the mobile app.
+export interface MobileServerUser {
+  id: string;
+  name: string;
+  email: string;
+  role: "USER" | "ADMIN";
+  xp: number;
+  level: number;
+  banned: boolean;
+  bannedReason: string | null;
+  createdAt: string;
+}
+
+export interface SyncResponse {
+  token: string;
+  user: MobileServerUser;
+}
+
+export interface MeResponse {
+  user: MobileServerUser;
+}
+
+export async function syncUser(args: {
+  name: string;
+  email: string;
+  deviceId: string;
+}) {
+  return apiPost<SyncResponse>("/auth/sync", args, { raw: true });
+}
+
+export async function fetchMe() {
+  return apiGet<MeResponse>("/auth/me", undefined, { auth: true, raw: true });
+}
+
+export async function signOutServer() {
+  // Best-effort. Backend always returns 204; we don't care about the body.
+  return apiPost<unknown>("/auth/sign-out", {}, { auth: true, raw: true });
+}

VinEye/src/services/api/authEvents.ts

@@ -0,0 +1,28 @@
+// Lightweight pub/sub for auth-impacting HTTP events. apiPost emits when it
+// sees 401 (token expired/invalid) or 403 with banned: true. AuthContext
+// subscribes to react globally without prop-drilling.
+
+type AuthEvent =
+  | { type: 'unauthorized' }
+  | { type: 'banned'; reason: string | null };
+
+type Listener = (event: AuthEvent) => void;
+
+const listeners = new Set<Listener>();
+
+export function emitAuthEvent(event: AuthEvent): void {
+  listeners.forEach((l) => {
+    try {
+      l(event);
+    } catch (err) {
+      console.warn('[authEvents] listener threw:', err);
+    }
+  });
+}
+
+export function subscribeAuthEvents(listener: Listener): () => void {
+  listeners.add(listener);
+  return () => {
+    listeners.delete(listener);
+  };
+}

VinEye/src/services/api/client.ts

@@ -1,4 +1,6 @@
 import { API_CONFIG } from "@/config/api";
+import { getToken } from "@/services/auth/tokenStorage";
+import { emitAuthEvent } from "@/services/api/authEvents";
 
 if (__DEV__) {
   console.log("[VinEye API] Base URL:", API_CONFIG.baseUrl);
@@ -11,12 +13,108 @@ export type ApiError = {
 };
 
 export type ApiResponse<T> =
-  | { success: true; data: T; pagination?: { page: number; limit: number; total: number; pages: number } }
+  | {
+      success: true;
+      data: T;
+      pagination?: { page: number; limit: number; total: number; pages: number };
+    }
   | { success: false; error: ApiError };
 
+type FetchOpts = {
+  /** When true, attach the Bearer session token if present. */
+  auth?: boolean;
+  /** When true, do NOT unwrap json.data — return json directly as T. */
+  raw?: boolean;
+};
+
+async function buildHeaders(
+  base: HeadersInit,
+  withAuth: boolean,
+): Promise<Headers> {
+  const headers = new Headers(base);
+  if (withAuth) {
+    const token = await getToken();
+    if (token) {
+      headers.set("Authorization", `Bearer ${token}`);
+    }
+  }
+  return headers;
+}
+
+async function handleResponse<T>(
+  res: Response,
+  opts: FetchOpts,
+): Promise<ApiResponse<T>> {
+  if (!res.ok) {
+    // Try to parse the body for richer error info (banned/bannedReason).
+    let body: unknown = null;
+    try {
+      body = await res.json();
+    } catch {
+      // ignore
+    }
+
+    if (res.status === 401) {
+      emitAuthEvent({ type: "unauthorized" });
+    } else if (
+      res.status === 403 &&
+      typeof body === "object" &&
+      body !== null &&
+      (body as { banned?: boolean }).banned === true
+    ) {
+      emitAuthEvent({
+        type: "banned",
+        reason: (body as { bannedReason?: string | null }).bannedReason ?? null,
+      });
+    }
+
+    return {
+      success: false,
+      error: {
+        type: "SERVER",
+        message:
+          (body as { error?: string } | null)?.error ??
+          `Server responded with ${res.status}`,
+        status: res.status,
+      },
+    };
+  }
+
+  try {
+    const json = await res.json();
+    if (opts.raw) {
+      return { success: true, data: json as T };
+    }
+    return {
+      success: true,
+      data: json.data as T,
+      pagination: json.pagination,
+    };
+  } catch {
+    return {
+      success: false,
+      error: { type: "PARSE", message: "Failed to parse JSON response" },
+    };
+  }
+}
+
+function asApiError(err: unknown): ApiError {
+  if (err instanceof DOMException && err.name === "AbortError") {
+    return { type: "TIMEOUT", message: "Request timed out" };
+  }
+  if (err instanceof TypeError) {
+    return { type: "NETWORK", message: "No network connection" };
+  }
+  return {
+    type: "UNKNOWN",
+    message: err instanceof Error ? err.message : "Unknown error",
+  };
+}
+
 export async function apiGet<T>(
   endpoint: string,
   params?: Record<string, string>,
+  opts: FetchOpts = {},
 ): Promise<ApiResponse<T>> {
   const url = new URL(`${API_CONFIG.baseUrl}${endpoint}`);
   if (params) {
@@ -31,53 +129,40 @@ export async function apiGet<T>(
   try {
     const res = await fetch(url.toString(), {
       method: "GET",
-      headers: { Accept: "application/json" },
+      headers: await buildHeaders({ Accept: "application/json" }, !!opts.auth),
       signal: controller.signal,
     });
-
     clearTimeout(timeoutId);
-
-    if (!res.ok) {
-      return {
-        success: false,
-        error: {
-          type: "SERVER",
-          message: `Server responded with ${res.status}`,
-          status: res.status,
-        },
-      };
-    }
-
-    const json = await res.json();
-
-    return {
-      success: true,
-      data: json.data as T,
-      pagination: json.pagination,
-    };
-  } catch (err: unknown) {
+    return handleResponse<T>(res, opts);
+  } catch (err) {
     clearTimeout(timeoutId);
-
-    if (err instanceof DOMException && err.name === "AbortError") {
-      return {
-        success: false,
-        error: { type: "TIMEOUT", message: "Request timed out" },
-      };
-    }
-
-    if (err instanceof TypeError) {
-      return {
-        success: false,
-        error: { type: "NETWORK", message: "No network connection" },
-      };
-    }
-
-    return {
-      success: false,
-      error: {
-        type: "UNKNOWN",
-        message: err instanceof Error ? err.message : "Unknown error",
-      },
-    };
+    return { success: false, error: asApiError(err) };
+  }
+}
+
+export async function apiPost<T>(
+  endpoint: string,
+  body: unknown,
+  opts: FetchOpts = {},
+): Promise<ApiResponse<T>> {
+  const url = `${API_CONFIG.baseUrl}${endpoint}`;
+  const controller = new AbortController();
+  const timeoutId = setTimeout(() => controller.abort(), API_CONFIG.timeout);
+
+  try {
+    const res = await fetch(url, {
+      method: "POST",
+      headers: await buildHeaders(
+        { Accept: "application/json", "Content-Type": "application/json" },
+        !!opts.auth,
+      ),
+      body: JSON.stringify(body),
+      signal: controller.signal,
+    });
+    clearTimeout(timeoutId);
+    return handleResponse<T>(res, opts);
+  } catch (err) {
+    clearTimeout(timeoutId);
+    return { success: false, error: asApiError(err) };
   }
 }

VinEye/src/services/api/scans.ts

@@ -0,0 +1,31 @@
+import { apiPost } from '@/services/api/client';
+import { getDeviceId } from '@/services/auth/tokenStorage';
+import type { ScanRecord } from '@/types/detection';
+
+interface PushScanResponse {
+  scan: {
+    id: string;
+    confidence: number;
+    latitude: number | null;
+    longitude: number | null;
+    createdAt: string;
+    disease: { slug: string; name: string } | null;
+  };
+}
+
+// Best-effort push of a freshly-saved scan to the backend. The mobile app
+// never blocks on this — failures are silent (offline, no account, etc.).
+// Confidence on the device is 0-100; the backend stores 0-1.
+export async function pushScan(record: ScanRecord) {
+  const deviceId = await getDeviceId();
+
+  const body = {
+    confidence: Math.max(0, Math.min(1, record.detection.confidence / 100)),
+    diseaseSlug: record.detection.diseaseSlug ?? null,
+    latitude: typeof record.latitude === 'number' ? record.latitude : null,
+    longitude: typeof record.longitude === 'number' ? record.longitude : null,
+    deviceId,
+  };
+
+  return apiPost<PushScanResponse>('/scans', body, { auth: true, raw: true });
+}

VinEye/src/services/auth/authStorage.ts

@@ -29,6 +29,16 @@ export async function getUser(): Promise<User | null> {
       email: typeof parsed.email === 'string' ? parsed.email : null,
       isGuest: parsed.isGuest,
       createdAt: parsed.createdAt,
+      role: parsed.role === 'ADMIN' ? 'ADMIN' : parsed.role === 'USER' ? 'USER' : undefined,
+      xp: typeof parsed.xp === 'number' ? parsed.xp : undefined,
+      level: typeof parsed.level === 'number' ? parsed.level : undefined,
+      banned: typeof parsed.banned === 'boolean' ? parsed.banned : undefined,
+      bannedReason:
+        typeof parsed.bannedReason === 'string'
+          ? parsed.bannedReason
+          : parsed.bannedReason === null
+            ? null
+            : undefined,
     };
   } catch {
     return null;

VinEye/src/services/auth/tokenStorage.ts

@@ -0,0 +1,72 @@
+import * as SecureStore from 'expo-secure-store';
+import * as Crypto from 'expo-crypto';
+import AsyncStorage from '@react-native-async-storage/async-storage';
+import { Platform } from 'react-native';
+
+const TOKEN_KEY = 'vineye_session_token';
+const DEVICE_ID_KEY = 'vineye_device_id';
+
+// SecureStore is unavailable on web and on some legacy Android setups; we
+// fall back to AsyncStorage so the auth flow keeps working in dev (Expo Go
+// web preview) at the cost of weaker secrecy.
+let secureAvailable: boolean | null = null;
+
+async function isSecureAvailable(): Promise<boolean> {
+  if (secureAvailable !== null) return secureAvailable;
+  if (Platform.OS === 'web') {
+    secureAvailable = false;
+    return false;
+  }
+  try {
+    secureAvailable = await SecureStore.isAvailableAsync();
+  } catch {
+    secureAvailable = false;
+  }
+  return secureAvailable;
+}
+
+async function readSecure(key: string): Promise<string | null> {
+  if (await isSecureAvailable()) {
+    return SecureStore.getItemAsync(key);
+  }
+  return AsyncStorage.getItem(key);
+}
+
+async function writeSecure(key: string, value: string): Promise<void> {
+  if (await isSecureAvailable()) {
+    await SecureStore.setItemAsync(key, value);
+    return;
+  }
+  await AsyncStorage.setItem(key, value);
+}
+
+async function deleteSecure(key: string): Promise<void> {
+  if (await isSecureAvailable()) {
+    await SecureStore.deleteItemAsync(key);
+    return;
+  }
+  await AsyncStorage.removeItem(key);
+}
+
+export async function saveToken(token: string): Promise<void> {
+  await writeSecure(TOKEN_KEY, token);
+}
+
+export async function getToken(): Promise<string | null> {
+  return readSecure(TOKEN_KEY);
+}
+
+export async function removeToken(): Promise<void> {
+  await deleteSecure(TOKEN_KEY);
+}
+
+// A stable per-install device id. Used as part of the deterministic mobile
+// auth password — must persist across logouts so the same email keeps the
+// same backend account on this device.
+export async function getDeviceId(): Promise<string> {
+  const existing = await readSecure(DEVICE_ID_KEY);
+  if (existing) return existing;
+  const fresh = Crypto.randomUUID();
+  await writeSecure(DEVICE_ID_KEY, fresh);
+  return fresh;
+}

VinEye/src/types/auth.ts

@@ -1,5 +1,5 @@
 export interface User {
-  /** UUID v4 généré via expo-crypto. */
+  /** UUID v4 (guest) ou id retourné par le backend (compte synchronisé). */
   id: string;
   name: string;
   /** null pour les invités (compte généré sans email). */
@@ -7,6 +7,13 @@ export interface User {
   isGuest: boolean;
   /** ISO 8601. */
   createdAt: string;
+  /** Champs hydratés depuis /api/mobile/auth/me — absents tant que le compte
+   *  n'a pas été synchronisé (offline ou guest). */
+  role?: "USER" | "ADMIN";
+  xp?: number;
+  level?: number;
+  banned?: boolean;
+  bannedReason?: string | null;
 }
 
 export interface AuthState {