chore: durcit la configuration pour la production

- mobile: externalise l'URL d'API via EXPO_PUBLIC_API_URL (repli localhost en dev)
- backend: .env.example adapté au projet (PostgreSQL, JWT, FRONTEND_URL, Redis)
- frontend/mobile: ajoute .env.example (+ exception gitignore front)
- mobile: supprime les 4 `any` (helper getApiError, type Feed, glyphMap Ionicons)
- backend: normalise le style PSR-12 via Pint (13 fichiers)

Tests backend 15/15, mobile tsc 0, Pint pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

mobile/app/(tabs)/info/index.tsx

@@ -3,12 +3,13 @@ import { Ionicons } from '@expo/vector-icons';
 import { useRouter } from 'expo-router';
 import { useFeeds } from '@/hooks/useFeeds';
 import { Colors } from '@/lib/colors';
+import type { Feed } from '@/types';
 
 export default function InfoListScreen() {
   const { data: feeds, isLoading } = useFeeds();
   const router = useRouter();
 
-  const renderItem = ({ item }: { item: any }) => (
+  const renderItem = ({ item }: { item: Feed }) => (
     <TouchableOpacity
       style={styles.card}
       onPress={() => router.push(`/(tabs)/info/${item.slug}`)}

mobile/app/(tabs)/profile.tsx

@@ -67,10 +67,10 @@ export default function ProfileScreen() {
   );
 }
 
-function MenuItem({ icon, label }: { icon: string; label: string }) {
+function MenuItem({ icon, label }: { icon: keyof typeof Ionicons.glyphMap; label: string }) {
   return (
     <TouchableOpacity style={styles.menuItem}>
-      <Ionicons name={icon as any} size={20} color={Colors.gray[600]} />
+      <Ionicons name={icon} size={20} color={Colors.gray[600]} />
       <Text style={styles.menuLabel}>{label}</Text>
       <Ionicons name="chevron-forward" size={18} color={Colors.gray[300]} />
     </TouchableOpacity>

mobile/app/auth/login.tsx

@@ -2,6 +2,7 @@ import { useState } from 'react';
 import { View, Text, TextInput, TouchableOpacity, StyleSheet, Alert, KeyboardAvoidingView, Platform, ScrollView } from 'react-native';
 import { Link, useRouter } from 'expo-router';
 import { useAuthStore } from '@/lib/auth-store';
+import { getApiError } from '@/lib/api';
 import { Colors } from '@/lib/colors';
 
 export default function LoginScreen() {
@@ -20,8 +21,8 @@ export default function LoginScreen() {
     try {
       await login(email, password);
       router.replace('/(tabs)');
-    } catch (error: any) {
-      Alert.alert('Erreur', error.response?.data?.message || 'Identifiants incorrects');
+    } catch (error) {
+      Alert.alert('Erreur', getApiError(error).message || 'Identifiants incorrects');
     } finally {
       setLoading(false);
     }

mobile/app/auth/register.tsx

@@ -3,6 +3,7 @@ import { View, Text, TextInput, TouchableOpacity, StyleSheet, Alert, KeyboardAvo
 import { Link, useRouter } from 'expo-router';
 import { Ionicons } from '@expo/vector-icons';
 import { useAuthStore } from '@/lib/auth-store';
+import { getApiError } from '@/lib/api';
 import { Colors } from '@/lib/colors';
 
 const EMAIL_REGEX = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
@@ -43,9 +44,10 @@ export default function RegisterScreen() {
         consentement_rgpd: consentement,
       });
       router.replace('/(tabs)');
-    } catch (error: any) {
-      const msg = error.response?.data?.message || 'Erreur lors de l\'inscription';
-      const apiErrors = error.response?.data?.errors;
+    } catch (error) {
+      const data = getApiError(error);
+      const msg = data.message || 'Erreur lors de l\'inscription';
+      const apiErrors = data.errors;
       if (apiErrors) {
         const mapped: Record<string, string> = {};
         Object.entries(apiErrors).forEach(([k, v]) => { mapped[k] = Array.isArray(v) ? v[0] as string : String(v); });