fix: 修复MCP工具定义与文档描述 (#51)

* docs: 更新README添加评论功能说明

- 新增第6个主要功能：发表评论到帖子
- 添加评论功能的视频演示
- 更新MCP工具列表，包含post_comment_to_feed
- 补充遗漏的get_feed_detail工具
- 更新工具总数从4个到6个

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* fix: 修复MCP工具定义与文档描述不一致问题

修复publish_content工具定义：
- 删除不存在的video参数
- 将images添加到required字段
- 更新标题描述添加字数限制说明
- 修正工具描述为"发布小红书图文内容"

更新README.md文档：
- 修正publish_content参数说明（images必需，不支持video）
- 确保文档与实际MCP工具定义一致

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <noreply@anthropic.com>

---------

Co-authored-by: Claude <noreply@anthropic.com>

streamable_http.go

@@ -166,13 +166,13 @@ func (s *AppServer) processToolsList(request *JSONRPCRequest) *JSONRPCResponse {
 		},
 		{
 			"name":        "publish_content",
-			"description": "发布小红书内容（支持图文或视频）",
+			"description": "发布小红书图文内容",
 			"inputSchema": map[string]interface{}{
 				"type": "object",
 				"properties": map[string]interface{}{
 					"title": map[string]interface{}{
 						"type":        "string",
-						"description": "内容标题",
+						"description": "内容标题（小红书限制：最多20个中文字或英文单词）",
 					},
 					"content": map[string]interface{}{
 						"type":        "string",
@@ -180,17 +180,14 @@ func (s *AppServer) processToolsList(request *JSONRPCRequest) *JSONRPCResponse {
 					},
 					"images": map[string]interface{}{
 						"type":        "array",
-						"description": "图片路径列表，支持本地路径或URL",
+						"description": "图片路径列表，支持本地路径或URL（至少需要1张图片）",
 						"items": map[string]interface{}{
 							"type": "string",
 						},
-					},
-					"video": map[string]interface{}{
-						"type":        "string",
-						"description": "视频文件路径（发布视频时使用）",
+						"minItems": 1,
 					},
 				},
-				"required": []string{"title", "content"},
+				"required": []string{"title", "content", "images"},
 			},
 		},
 		{