Sistema multilingüe EN/ES: middleware SetLocale, LanguageSwitcher, campo locale en users, traducciones en dashboard/mapa/proyectos/gestores

app/Http/Middleware/SetLocale.php

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+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\App;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\Session;
+
+class SetLocale
+{
+    /**
+     * Handle an incoming request.
+     */
+    public function handle(Request $request, Closure $next)
+    {
+        $locale = null;
+
+        // 1. From authenticated user preference
+        if (Auth::check()) {
+            $userLocale = Auth::user()->locale;
+            if ($userLocale && in_array($userLocale, ['en', 'es'])) {
+                $locale = $userLocale;
+            }
+        }
+
+        // 2. From session
+        if (!$locale && Session::has('locale')) {
+            $sessionLocale = Session::get('locale');
+            if (in_array($sessionLocale, ['en', 'es'])) {
+                $locale = $sessionLocale;
+            }
+        }
+
+        // 3. From browser Accept-Language
+        if (!$locale) {
+            $browserLang = substr($request->server('HTTP_ACCEPT_LANGUAGE', 'en'), 0, 2);
+            if (in_array($browserLang, ['en', 'es'])) {
+                $locale = $browserLang;
+            }
+        }
+
+        // 4. Default to English
+        if (!$locale) {
+            $locale = 'en';
+        }
+
+        App::setLocale($locale);
+        Session::put('locale', $locale);
+
+        return $next($request);
+    }
+}

app/Livewire/LanguageSwitcher.php

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+<?php
+
+namespace App\Livewire;
+
+use Livewire\Component;
+use Illuminate\Support\Facades\App;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\Session;
+
+class LanguageSwitcher extends Component
+{
+    public $currentLocale;
+
+    public function mount()
+    {
+        $this->currentLocale = App::getLocale();
+    }
+
+    public function switchLanguage($locale)
+    {
+        if (!in_array($locale, ['en', 'es'])) {
+            return;
+        }
+
+        App::setLocale($locale);
+        Session::put('locale', $locale);
+
+        if (Auth::check()) {
+            $user = Auth::user();
+            $user->locale = $locale;
+            $user->save();
+        }
+
+        $this->currentLocale = $locale;
+        $this->dispatch('localeChanged', $locale);
+    }
+
+    public function render()
+    {
+        return view('livewire.language-switcher');
+    }
+}