feat: 新增租戶品牌客製化系統（Logo、主色系）、修正 hardcoded 顏色為 CSS 變數

app/Http/Controllers/Landlord/TenantController.php

@@ -92,6 +92,26 @@ class TenantController extends Controller
         ]);
     }
 
+    /**
+     * 顯示租戶樣式管理頁面
+     */
+    public function showBranding(Tenant $tenant)
+    {
+        $logoUrl = null;
+        if (isset($tenant->branding['logo_path'])) {
+            $logoUrl = \Storage::url($tenant->branding['logo_path']);
+        }
+
+        return Inertia::render('Landlord/Tenant/Branding', [
+            'tenant' => [
+                'id' => $tenant->id,
+                'name' => $tenant->name ?? $tenant->id,
+                'branding' => $tenant->branding ?? [],
+            ],
+            'logo_url' => $logoUrl,
+        ]);
+    }
+
     /**
      * 顯示編輯租戶表單
      */
@@ -171,4 +191,44 @@ class TenantController extends Controller
 
         return back()->with('success', "域名 {$domainName} 已移除！");
     }
+
+    /**
+     * 更新租戶品牌樣式設定
+     */
+    public function updateBranding(Request $request, Tenant $tenant)
+    {
+        $validated = $request->validate([
+            'logo' => 'nullable|image|max:2048',
+            'primary_color' => 'required|regex:/^#[0-9A-Fa-f]{6}$/',
+            'text_color' => 'nullable|regex:/^#[0-9A-Fa-f]{6}$/',
+        ]);
+
+        $branding = $tenant->branding ?? [];
+
+        // 處理 Logo 上傳
+        if ($request->hasFile('logo')) {
+            // 刪除舊 Logo
+            if (isset($branding['logo_path'])) {
+                \Storage::disk('public')->delete($branding['logo_path']);
+            }
+            
+            // 儲存新 Logo
+            $path = $request->file('logo')->store('tenant-logos', 'public');
+            $branding['logo_path'] = $path;
+        }
+
+        // 更新主色系
+        $branding['primary_color'] = $validated['primary_color'];
+        
+        // 如果有傳入字體顏色則更新，否則保留原值（或預設值）
+        if (isset($validated['text_color'])) {
+            $branding['text_color'] = $validated['text_color'];
+        } elseif (!isset($branding['text_color'])) {
+            $branding['text_color'] = '#1a1a1a';
+        }
+
+        $tenant->update(['branding' => $branding]);
+
+        return redirect()->back()->with('success', '樣式設定已更新');
+    }
 }

app/Http/Middleware/HandleInertiaRequests.php

@@ -55,6 +55,23 @@ class HandleInertiaRequests extends Middleware
                 'success' => $request->session()->get('success'),
                 'error' => $request->session()->get('error'),
             ],
+            'branding' => function () {
+                $tenant = tenancy()->tenant;
+                if (!$tenant) {
+                    return null;
+                }
+
+                $logoUrl = null;
+                if (isset($tenant->branding['logo_path'])) {
+                    $logoUrl = \Storage::url($tenant->branding['logo_path']);
+                }
+
+                return [
+                    'logo_url' => $logoUrl,
+                    'primary_color' => $tenant->branding['primary_color'] ?? '#01ab83',
+                    'text_color' => $tenant->branding['text_color'] ?? '#1a1a1a',
+                ];
+            },
         ];
     }
 }