feat(note): add image upload functionality for notes

- Implemented a new endpoint in the Note controller to handle image uploads associated with notes.
- Added the `uploadImage` method in NoteService to manage image storage and return public URLs.
- Updated API routes to include the new image upload endpoint, enhancing note management capabilities.

app/note/controller/v1/Note.php

@@ -178,4 +178,27 @@ class Note extends BaseController
             return Response::error($e->getMessage(), $e->getCode() ?: 500);
         }
     }
+
+    /**
+     * 上传笔记图片
+     * POST /note/v1/item/image/:id
+     */
+    public function image(Request $request, int $id)
+    {
+        try {
+            if ($id <= 0) {
+                return Response::error('笔记 ID 不正确', 400);
+            }
+
+            $file = $request->file('image');
+            if (!$file) {
+                return Response::error('图片文件不能为空', 400);
+            }
+
+            $result = $this->noteService->uploadImage($this->getCurrentNoteUserId(), $id, $file);
+            return Response::success($result, '上传成功');
+        } catch (\Throwable $e) {
+            return Response::error($e->getMessage(), $e->getCode() ?: 500);
+        }
+    }
 }