Ajoute un menu admin pour éditer les variables .env de l'app

Nouvelle page "Configuration (.env)" réservée au rôle Administrateur :
- EnvFileManager lit/réécrit le .env ligne à ligne en préservant
  commentaires et mise en forme, avec écriture atomique (fichier
  temporaire + rename).
- Variables critiques (APP_KEY, DB_*, SESSION_DRIVER) en lecture seule
  pour éviter de casser la connexion base de données ou de bloquer
  l'accès admin — protection appliquée aussi côté serveur, pas
  seulement dans l'affichage.
- Valeurs sensibles (mots de passe, jetons, clés) masquées par défaut
  avec un bouton de révélation par champ.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/Services/EnvFileManager.php

@@ -0,0 +1,160 @@
+<?php
+
+namespace App\Services;
+
+use RuntimeException;
+
+/**
+ * Reads and rewrites the application's .env file line-by-line, preserving
+ * comments, blank lines, and formatting for anything it doesn't touch.
+ */
+class EnvFileManager
+{
+    /**
+     * Never editable from the admin UI: getting any of these wrong can break
+     * the database connection, invalidate encrypted sessions/cookies, or
+     * otherwise lock an administrator out of the app entirely. Change these
+     * via direct file/shell access instead.
+     */
+    public const PROTECTED_KEYS = [
+        'APP_KEY',
+        'DB_CONNECTION',
+        'DB_HOST',
+        'DB_PORT',
+        'DB_DATABASE',
+        'DB_USERNAME',
+        'DB_PASSWORD',
+        'SESSION_DRIVER',
+    ];
+
+    protected string $path;
+
+    public function __construct(?string $path = null)
+    {
+        $this->path = $path ?: base_path('.env');
+    }
+
+    /**
+     * @return array<int, array{type: 'comment', text: string}|array{type: 'blank'}|array{type: 'raw', raw: string}|array{type: 'var', key: string, value: string, protected: bool, sensitive: bool}>
+     */
+    public function read(): array
+    {
+        if (! is_file($this->path)) {
+            throw new RuntimeException('Le fichier .env est introuvable.');
+        }
+
+        $lines = preg_split('/\r\n|\r|\n/', file_get_contents($this->path));
+        $parsed = [];
+
+        foreach ($lines as $line) {
+            $trimmed = trim($line);
+
+            if ($trimmed === '') {
+                $parsed[] = ['type' => 'blank'];
+
+                continue;
+            }
+
+            if (str_starts_with($trimmed, '#')) {
+                $parsed[] = ['type' => 'comment', 'text' => ltrim(substr($trimmed, 1))];
+
+                continue;
+            }
+
+            if (! str_contains($trimmed, '=')) {
+                $parsed[] = ['type' => 'raw', 'raw' => $line];
+
+                continue;
+            }
+
+            [$key, $rawValue] = explode('=', $trimmed, 2);
+            $key = trim($key);
+
+            $parsed[] = [
+                'type' => 'var',
+                'key' => $key,
+                'value' => $this->unquote(trim($rawValue)),
+                'protected' => in_array($key, self::PROTECTED_KEYS, true),
+                'sensitive' => $this->isSensitive($key),
+            ];
+        }
+
+        return $parsed;
+    }
+
+    public function isSensitive(string $key): bool
+    {
+        return (bool) preg_match('/PASSWORD|SECRET|TOKEN|KEY/i', $key);
+    }
+
+    /**
+     * Rewrites only the given keys' values, leaving every other line (order,
+     * comments, blanks, untouched keys) exactly as-is. Protected keys are
+     * silently ignored even if present in $updates — never trust the form.
+     *
+     * @param  array<string, string>  $updates
+     */
+    public function update(array $updates): void
+    {
+        foreach ($updates as $key => $value) {
+            if (str_contains($value, "\n") || str_contains($value, "\r")) {
+                throw new RuntimeException("La valeur de {$key} ne peut pas contenir de retour à la ligne.");
+            }
+        }
+
+        if (! is_writable($this->path)) {
+            throw new RuntimeException("Le fichier .env n'est pas accessible en écriture par le serveur web.");
+        }
+
+        $lines = preg_split('/\r\n|\r|\n/', file_get_contents($this->path));
+        $output = [];
+
+        foreach ($lines as $line) {
+            $trimmed = trim($line);
+            $replaced = false;
+
+            if ($trimmed !== '' && ! str_starts_with($trimmed, '#') && str_contains($trimmed, '=')) {
+                [$key] = explode('=', $trimmed, 2);
+                $key = trim($key);
+
+                if (array_key_exists($key, $updates) && ! in_array($key, self::PROTECTED_KEYS, true)) {
+                    $output[] = $key.'='.$this->quote($updates[$key]);
+                    $replaced = true;
+                }
+            }
+
+            if (! $replaced) {
+                $output[] = $line;
+            }
+        }
+
+        // Write to a temp file in the same directory first, then rename —
+        // rename() is atomic, so a request reading .env mid-save never sees
+        // a half-written file.
+        $tmpPath = $this->path.'.tmp-'.bin2hex(random_bytes(4));
+        file_put_contents($tmpPath, implode(PHP_EOL, $output));
+        rename($tmpPath, $this->path);
+    }
+
+    protected function unquote(string $value): string
+    {
+        if (strlen($value) >= 2 && $value[0] === '"' && str_ends_with($value, '"')) {
+            return stripcslashes(substr($value, 1, -1));
+        }
+
+        if (strlen($value) >= 2 && $value[0] === "'" && str_ends_with($value, "'")) {
+            return substr($value, 1, -1);
+        }
+
+        return $value;
+    }
+
+    protected function quote(string $value): string
+    {
+        if ($value === '' || preg_match('/[\s#"]/', $value)) {
+            return '"'.addcslashes($value, '"\\').'"';
+        }
+
+        return $value;
+    }
+}

resources/views/components/layouts/app.blade.php

@@ -131,6 +131,10 @@
                            class="block rounded px-3 py-2 hover:bg-slate-800 {{ request()->routeIs('users.*') ? 'bg-slate-800 text-white' : '' }}">
                             Utilisateurs
                         </a>
+                        <a href="{{ route('settings.env') }}"
+                           class="block rounded px-3 py-2 hover:bg-slate-800 {{ request()->routeIs('settings.env') ? 'bg-slate-800 text-white' : '' }}">
+                            Configuration (.env)
+                        </a>
                     </div>
                 @endrole
             </nav>

resources/views/components/settings/⚡env.blade.php

@@ -0,0 +1,134 @@
+<?php
+
+use App\Services\EnvFileManager;
+use Livewire\Component;
+
+new class extends Component
+{
+    /** @var array<int, array<string, mixed>> */
+    public array $lines = [];
+
+    /** @var array<string, string> */
+    public array $values = [];
+
+    public function mount(): void
+    {
+        $this->loadLines();
+    }
+
+    public function save(): void
+    {
+        foreach ($this->values as $key => $value) {
+            if (str_contains($value, "\n") || str_contains($value, "\r")) {
+                $this->addError('values', "La valeur de {$key} ne peut pas contenir de retour à la ligne.");
+
+                return;
+            }
+        }
+
+        try {
+            app(EnvFileManager::class)->update($this->values);
+        } catch (\Throwable $e) {
+            session()->flash('error', $e->getMessage());
+
+            return;
+        }
+
+        session()->flash('status', 'Configuration enregistrée. Les nouvelles valeurs seront actives dès la prochaine requête.');
+
+        $this->loadLines();
+    }
+
+    protected function loadLines(): void
+    {
+        $this->lines = app(EnvFileManager::class)->read();
+        $this->values = [];
+
+        foreach ($this->lines as $line) {
+            if ($line['type'] === 'var' && ! $line['protected']) {
+                $this->values[$line['key']] = $line['value'];
+            }
+        }
+    }
+};
+?>
+
+<div class="max-w-3xl">
+    <h1 class="mb-2 text-2xl font-semibold text-slate-900">Configuration (.env)</h1>
+    <p class="mb-6 text-sm text-slate-500">
+        Modifie directement les variables d'environnement de l'application. Les changements
+        prennent effet à la prochaine requête — aucun redémarrage n'est nécessaire.
+    </p>
+
+    @if (session('status'))
+        <div class="mb-4 rounded border border-emerald-200 bg-emerald-50 px-4 py-2 text-sm text-emerald-700">
+            {{ session('status') }}
+        </div>
+    @endif
+
+    @if (session('error'))
+        <div class="mb-4 rounded border border-red-200 bg-red-50 px-4 py-2 text-sm text-red-700">
+            {{ session('error') }}
+        </div>
+    @endif
+
+    @error('values')
+        <div class="mb-4 rounded border border-red-200 bg-red-50 px-4 py-2 text-sm text-red-700">
+            {{ $message }}
+        </div>
+    @enderror
+
+    <form wire:submit="save" class="space-y-1 rounded border border-slate-200 bg-white p-6">
+        @foreach ($lines as $line)
+            @if ($line['type'] === 'comment')
+                @if ($line['text'] !== '')
+                    <p class="mb-1 mt-5 text-xs font-semibold uppercase tracking-wide text-slate-400 first:mt-0">
+                        {{ $line['text'] }}
+                    </p>
+                @endif
+            @elseif ($line['type'] === 'var')
+                <div class="flex items-center gap-3 py-1.5">
+                    <label for="env-{{ $line['key'] }}" class="w-56 shrink-0 truncate font-mono text-xs text-slate-600" title="{{ $line['key'] }}">
+                        {{ $line['key'] }}
+                    </label>
+
+                    @if ($line['protected'])
+                        <div class="flex flex-1 items-center gap-2">
+                            <input type="text" value="{{ $line['sensitive'] ? '••••••••••••' : $line['value'] }}" disabled
+                                   class="w-full rounded border-slate-200 bg-slate-50 font-mono text-sm text-slate-400">
+                            <span class="shrink-0 rounded-full bg-slate-100 px-2 py-0.5 text-xs font-medium text-slate-500" title="Non modifiable ici — nécessite un accès direct au serveur">
+                                🔒 lecture seule
+                            </span>
+                        </div>
+                    @elseif ($line['sensitive'])
+                        <div x-data="{ show: false }" class="flex flex-1 items-center gap-2">
+                            <input :type="show ? 'text' : 'password'" id="env-{{ $line['key'] }}"
+                                   wire:model="values.{{ $line['key'] }}" autocomplete="off"
+                                   class="w-full rounded border-slate-300 font-mono text-sm shadow-sm focus:border-slate-500 focus:ring-slate-500">
+                            <button type="button" x-on:click="show = !show"
+                                    class="shrink-0 text-xs text-slate-500 hover:text-slate-900">
+                                <span x-text="show ? 'Masquer' : 'Révéler'"></span>
+                            </button>
+                        </div>
+                    @else
+                        <input type="text" id="env-{{ $line['key'] }}"
+                               wire:model="values.{{ $line['key'] }}"
+                               class="flex-1 rounded border-slate-300 font-mono text-sm shadow-sm focus:border-slate-500 focus:ring-slate-500">
+                    @endif
+                </div>
+            @endif
+        @endforeach
+
+        <div class="flex items-center gap-3 pt-5">
+            <button type="submit" wire:loading.attr="disabled" wire:target="save"
+                    class="inline-flex items-center gap-2 rounded bg-slate-900 px-4 py-2 text-sm font-medium text-white hover:bg-slate-700 disabled:cursor-not-allowed disabled:opacity-60">
+                <svg wire:loading wire:target="save" class="h-4 w-4 animate-spin" viewBox="0 0 24 24" fill="none">
+                    <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
+                    <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z"></path>
+                </svg>
+                <span wire:loading.remove wire:target="save">Enregistrer</span>
+                <span wire:loading wire:target="save">Enregistrement…</span>
+            </button>
+        </div>
+    </form>
+</div>

resources/views/settings/env.blade.php

@@ -0,0 +1,3 @@
+<x-layouts.app title="Configuration (.env)">
+    <livewire:settings.env />
+</x-layouts.app>

routes/web.php

@@ -116,6 +116,10 @@ Route::middleware(['auth'])->group(function () {
         Route::get('/{type}/edit', fn (FlexibleAssetType $type) => view('asset-types.edit', ['type' => $type]))->name('edit');
     });
 
+    Route::get('/settings/env', fn () => view('settings.env'))
+        ->name('settings.env')
+        ->middleware('role:Administrateur');
+
     Route::get('/organizations/{organization}/assets', function (Organization $organization) {
         return view('assets.picker', [
             'organization' => $organization,