fix: 修复 YAML 块语法 body 匹配失败问题

- normalize_yaml_body 函数在解析 JSON 前添加 trim() 处理，解决 YAML `|` 和 `>` 语法产生的前导空格问题
- 修复 multiple_login.yaml 中 response body 格式错误（YAML 对象改为 JSON 字符串）

mocks/v1/user/avatar.yaml

@@ -0,0 +1,73 @@
+# 上传头像 - Multipart 格式（数组形式，只匹配字段名）
+- name: "user_upload_avatar_001"
+  request:
+    method: "POST"
+    path: "/v1/user/avatar"
+    headers:
+      Content-Type: "multipart/form-data"
+    body:
+      - "avatar1"
+      - "description1"
+  response:
+    status: 200
+    headers:
+      Content-Type: "application/json"
+    body: |
+      {
+        "code": 0,
+        "message": "头像上传成功",
+        "data": {
+          "url": "https://cdn.example.com/v1/avatars/10001.jpg",
+          "size": 204800,
+          "filename": "avatar.jpg"
+        }
+      }
+
+- name: "user_upload_avatar_002"
+  request:
+    method: "POST"
+    path: "/v1/user/avatar"
+    headers:
+      Content-Type: "multipart/form-data"
+    body:
+      avatar2: "avatar"
+      description2: "description"
+  response:
+    status: 200
+    headers:
+      Content-Type: "application/json"
+    body: |
+      {
+        "code": 0,
+        "message": "头像上传成功",
+        "data": {
+          "url": "https://cdn.example.com/v1/avatars/10002.jpg",
+          "size": 204800,
+          "filename": "avatar.jpg"
+        }
+      }
+- name: "user_upload_avatar_003"
+  request:
+    method: "POST"
+    path: "/v1/user/avatar"
+    headers:
+      Content-Type: "multipart/form-data"
+    body: >
+      {
+        "avatar3": "avatar"
+        "description3": "description"
+      }
+  response:
+    status: 200
+    headers:
+      Content-Type: "application/json"
+    body: |
+      {
+        "code": 0,
+        "message": "头像上传成功",
+        "data": {
+          "url": "https://cdn.example.com/v1/avatars/10003.jpg",
+          "size": 204800,
+          "filename": "avatar.jpg"
+        }
+      }

mocks/v1/user/download.yaml

@@ -0,0 +1,13 @@
+# 下载用户数据文件 - file:// 协议
+name: "user_download"
+request:
+  method: "GET"
+  path: "/v1/user/download"
+  query_params:
+    format: "json"
+response:
+  status: 200
+  headers:
+    Content-Type: "application/octet-stream"
+    Content-Disposition: "attachment; filename=user_data.json"
+  body: "file://./storage/v1/user_data.json"

mocks/v1/user/echo.yaml

@@ -0,0 +1,13 @@
+# 文本回显 - Text 格式
+name: "user_echo"
+request:
+  method: "POST"
+  path: "/v1/user/echo"
+  headers:
+    Content-Type: "text/plain"
+  body: "Hello V1 Mock Server"
+response:
+  status: 200
+  headers:
+    Content-Type: "text/plain"
+  body: "Echo from V1: Hello V1 Mock Server"

mocks/v1/user/login_form.yaml

@@ -0,0 +1,24 @@
+# 表单登录 - Form 格式
+name: "_user_login_form"
+request:
+  method: "POST"
+  path: "/v1/user/login/form"
+  headers:
+    Content-Type: "application/x-www-form-urlencoded"
+  body:
+    username: "formuser"
+    password: "formpass"
+response:
+  status: 200
+  headers:
+    Content-Type: "application/json"
+  body: |
+    {
+      "code": 0,
+      "message": "表单登录成功",
+      "data": {
+        "token": "v2_form_token_xyz",
+        "userId": 20001,
+        "username": "formuser"
+      }
+    }

mocks/v1/user/profile.yaml

@@ -0,0 +1,24 @@
+# 获取用户信息 - GET 无 Body，需要 Authorization Header
+name: "user_profile"
+request:
+  method: "GET"
+  path: "/v1/user/profile"
+  headers:
+    Authorization: "Bearer v1_test_token"
+response:
+  status: 200
+  headers:
+    Content-Type: "application/json"
+  body: |
+    {
+      "code": 0,
+      "message": "获取成功",
+      "data": {
+        "userId": 10001,
+        "username": "admin",
+        "email": "admin@example.com",
+        "nickname": "管理员",
+        "avatar": "https://example.com/avatars/admin.jpg",
+        "createdAt": "2025-01-01T00:00:00Z"
+      }
+    }

mocks/v1/user/search.yaml

@@ -1,11 +0,0 @@
-id: "user_search_admin"
-request:
-  method: "GET"
-  path: "/api/v1/users"
-  # 请求中必须包含 role=admin 且 status=active
-  query_params:
-    role: "admin"
-    status: "active"
-response:
-  status: 200
-  body: '{"users": [{"id": 1, "name": "SuperAdmin"}]}'