Feature: Tenant Short Name and Branding Implementation

- Added short_name to Tenant model and controller
- Updated Landlord/Tenant pages (Create, Edit, Show, Index)
- Implemented branding customization (Favicon, Login Copyright, Sidebar Title)
- Updated HandleInertiaRequests to share branding data

app/Http/Middleware/HandleInertiaRequests.php

@@ -64,25 +64,30 @@ class HandleInertiaRequests extends Middleware
             ],
             'branding' => function () {
                 $tenant = tenancy()->tenant;
-                if (!$tenant) {
-                    // 中央後台預設 Branding
-                    return [
-                        'logo_url' => \Storage::url('defaults/logo.png'), // 中央後台也使用預設 Logo
-                        'primary_color' => '#4F46E5',
-                        'text_color' => '#1a1a1a',
-                    ];
-                }
+                
+                // 決定名稱顯示邏輯
+                $fullName = $tenant ? ($tenant->name ?? 'Star ERP') : 'Star ERP 中央後台';
+                $shortName = $tenant ? ($tenant->short_name ?? $fullName) : 'Start ERP';
 
                 $logoUrl = null;
-                if (isset($tenant->branding['logo_path'])) {
+                if ($tenant && isset($tenant->branding['logo_path'])) {
                     $logoUrl = \Storage::url($tenant->branding['logo_path']);
+                } elseif (!$tenant) {
+                    $logoUrl = \Storage::url('defaults/logo.png');
                 }
 
-                return [
+                $brandingData = [
+                    'name' => $fullName,
+                    'short_name' => $shortName,
                     'logo_url' => $logoUrl,
-                    'primary_color' => $tenant->branding['primary_color'] ?? '#01ab83',
+                    'primary_color' => $tenant->branding['primary_color'] ?? ($tenant ? '#01ab83' : '#4F46E5'),
                     'text_color' => $tenant->branding['text_color'] ?? '#1a1a1a',
                 ];
+
+                // 同步分享給 Blade View (給 app.blade.php 使用 Favicon)
+                \Illuminate\Support\Facades\View::share('branding', $brandingData);
+
+                return $brandingData;
             },
         ];
     }