feat(nav): FAQ shows all 8 sections + drag-drop reorder in Settings

FAQ sections were only 4 (service/crm/depozit/finante) even though
the sidebar has 8. Added the missing 4 to Hints::AREAS with proper
icons + accent colors:
  📊 Analiză (pink)   📣 Marketing (orange)
  🛒 Magazin (cyan)   ⚙️ Admin (slate)

Retagged 15 hints that were shoved into wrong areas as a workaround
(admin.*/marketing.*/shop.*/analytics.* now use the matching bucket).
FAQ blade reads accent color from the AREAS registry instead of a
hardcoded local map.

Also added per-tenant navigation group ordering:
- Settings → new "Ordine meniu lateral" section with a Filament
  Repeater that has reorderable buttons (drag/arrow buttons) but no
  add/delete (fixed list of 8 groups)
- Persisted to settings.nav_group_order as an array of keys
- New ConfigureNavGroups middleware (runs after ResolveTenant on
  the web stack) reads the current tenant's order and calls
  $panel->navigationGroups([...]) so the sidebar renders in that
  order per-request

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

app/Http/Middleware/ConfigureNavGroups.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Http\Middleware;
+
+use App\Tenancy\TenantManager;
+use Closure;
+use Filament\Facades\Filament;
+use Filament\Navigation\NavigationGroup;
+use Illuminate\Http\Request;
+
+/**
+ * Read the current tenant's preferred navigation group order from
+ * settings.nav_group_order and apply it to the tenant panel so the
+ * sidebar groups render in that order.
+ *
+ * Falls back to the built-in default order when the setting is empty.
+ */
+class ConfigureNavGroups
+{
+    /** Default order (matches the labels defined in lang/{ro,ru,en}/nav.php). */
+    public const DEFAULT_ORDER = [
+        'CRM',
+        'Service',
+        'Depozit',
+        'Finanțe',
+        'Analiză',
+        'Marketing',
+        'Magazin',
+        'Admin',
+    ];
+
+    public function handle(Request $request, Closure $next)
+    {
+        $tenant = app(TenantManager::class)->current();
+        if (! $tenant) return $next($request);
+
+        $order = (array) ($tenant->settings['nav_group_order'] ?? []);
+        if (empty($order)) $order = self::DEFAULT_ORDER;
+
+        // Only touch the tenant panel — bail if the current request isn't in it.
+        $panel = Filament::getCurrentPanel();
+        if (! $panel || $panel->getId() !== 'tenant') return $next($request);
+
+        $groups = array_map(
+            fn (string $key) => NavigationGroup::make(__('nav.group.' . $key)),
+            $order,
+        );
+        $panel->navigationGroups($groups);
+
+        return $next($request);
+    }
+}