[FEAT] 完善個人檔案功能：新增頭像即時上傳、麵包屑導覽、版面寬度優化與日期格式統一

app/Http/Controllers/ProfileController.php

@@ -37,6 +37,22 @@ class ProfileController extends Controller
             $user->email_verified_at = null;
         }
 
+        $user->save();
+
+        return Redirect::route('profile.edit')->with('status', 'profile-updated');
+    }
+
+    /**
+     * Update the user's avatar via AJAX.
+     */
+    public function updateAvatar(Request $request): \Illuminate\Http\JsonResponse
+    {
+        $request->validate([
+            'avatar' => ['required', 'image', 'mimes:jpeg,png,jpg,gif', 'max:1024'],
+        ]);
+
+        $user = $request->user();
+
         if ($request->hasFile('avatar')) {
             // Delete old avatar if exists
             if ($user->avatar) {
@@ -45,31 +61,19 @@ class ProfileController extends Controller
 
             $path = $request->file('avatar')->store('avatars', 'public');
             $user->avatar = $path;
+            $user->save();
+
+            return response()->json([
+                'success' => true,
+                'avatar_url' => $user->avatar_url,
+                'message' => __('Avatar updated successfully.'),
+            ]);
         }
 
-        $user->save();
-
-        return Redirect::route('profile.edit')->with('status', 'profile-updated');
+        return response()->json([
+            'success' => false,
+            'message' => __('No file uploaded.'),
+        ], 400);
     }
 
-    /**
-     * Delete the user's account.
-     */
-    public function destroy(Request $request): RedirectResponse
-    {
-        $request->validateWithBag('userDeletion', [
-            'password' => ['required', 'current_password'],
-        ]);
-
-        $user = $request->user();
-
-        Auth::logout();
-
-        $user->delete();
-
-        $request->session()->invalidate();
-        $request->session()->regenerateToken();
-
-        return Redirect::to('/');
-    }
 }