feat(mcp-server): add HackMD mcp server (#2260)

plugins/wasm-go/mcp-servers/mcp-hackmd/README.md

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+# HackMD MCP Server
+
+The MCP server implementation based on the HackMD API interacts with the HackMD platform through the MCP protocol. HackMD is a real-time, cross-platform collaborative Markdown knowledge base that allows users to co-edit documents with others on desktop, tablet, or mobile devices.
+
+## Features
+
+HackMD MCP Server provides the following features:
+
+- **User Data**: Retrieve user profile information and related configurations.
+    - `get_me`: Retrieve user data.
+
+- **Note Management**: Create, read, update, and delete personal notes.
+    - `get_notes`: Retrieve the user's note list.
+    - `post_notes`: Create a new note.
+    - `get_notes_noteId`: Retrieve a specific note by its ID.
+    - `patch_notes_noteId`: Update the content of a note.
+    - `delete_notes_noteId`: Delete a note.
+
+- **Team Collaboration**: Manage team-related notes.
+    - `get_teams`: Retrieve the list of teams the user participates in.
+    - `get_teams_teamPath_notes`: Retrieve the list of notes in a team.
+    - `patch_teams_teamPath_notes_noteId`: Update the content of a note within a team.
+    - `delete_teams_teamPath_notes_noteId`: Delete a note from a team.
+
+- **Browsing History**: View the user's browsing history.
+    - `get_history`: Retrieve the user's browsing history.
+
+## Usage Guide
+
+### Get AccessToken
+
+参考 [HackMD API 文档](https://hackmd.io/@hackmd-api/developer-portal/https%3A%2F%2Fhackmd.io%2F%40hackmd-api%2FrkoVeBXkq) 获取 AccessToken。
+
+### Generate SSE URL
+
+On the MCP Server interface, log in and enter the AccessToken to generate the URL.
+
+### Configure MCP Client
+
+On the user's MCP Client interface, add the generated SSE URL to the MCP Server list.
+
+``` json
+"mcpServers": {
+    "hackmd": {
+      "url": "https://mcp.higress.ai/mcp-hackmd/{generate_key}",
+    }
+}
+```