feat: 添加 JavaScript 渲染 PoC，支持通过 API 更新消息内容

README.md

@@ -60,10 +60,16 @@ This project is a collection of resources and does not require a Python environm
 
 ### Using Plugins
 
-1. Browse the `/plugins` directory and download the plugin file (`.py`) you need.
-2. Go to OpenWebUI **Admin Panel** -> **Settings** -> **Plugins**.
-3. Click the upload button and select the `.py` file you just downloaded.
-4. Once uploaded, refresh the page to enable the plugin in your chat settings or toolbar.
+1. **Install from OpenWebUI Community (Recommended)**:
+   - Visit my profile: [Fu-Jie's Profile](https://openwebui.com/u/Fu-Jie)
+   - Browse the plugins and select the one you like.
+   - Click "Get" to import it directly into your OpenWebUI instance.
+
+2. **Manual Installation**:
+   - Browse the `/plugins` directory and download the plugin file (`.py`) you need.
+   - Go to OpenWebUI **Admin Panel** -> **Settings** -> **Plugins**.
+   - Click the upload button and select the `.py` file you just downloaded.
+   - Once uploaded, refresh the page to enable the plugin in your chat settings or toolbar.
 
 ### Contributing
 

README_CN.md

@@ -87,10 +87,16 @@ OpenWebUI 增强功能集合。包含个人开发与收集的### 🧩 插件 (Pl
 
 ### 使用插件 (Plugins)
 
-1. 在 `/plugins` 目录中浏览并下载你需要的插件文件 (`.py`)。
-2. 打开 OpenWebUI 的 **管理员面板 (Admin Panel)** -> **设置 (Settings)** -> **插件 (Plugins)**。
-3. 点击上传按钮，选择刚才下载的 `.py` 文件。
-4. 上传成功后，刷新页面，你就可以在聊天设置或工具栏中启用该插件了。
+1. **从 OpenWebUI 社区安装 (推荐)**:
+   - 访问我的主页: [Fu-Jie's Profile](https://openwebui.com/u/Fu-Jie)
+   - 浏览插件列表，选择你喜欢的插件。
+   - 点击 "Get" 按钮，将其直接导入到你的 OpenWebUI 实例中。
+
+2. **手动安装**:
+   - 在 `/plugins` 目录中浏览并下载你需要的插件文件 (`.py`)。
+   - 打开 OpenWebUI 的 **管理员面板 (Admin Panel)** -> **设置 (Settings)** -> **插件 (Plugins)**。
+   - 点击上传按钮，选择刚才下载的 `.py` 文件。
+   - 上传成功后，刷新页面，你就可以在聊天设置或工具栏中启用该插件了。
 
 ### 贡献代码
 

docs/index.md

@@ -104,10 +104,16 @@ hide:
 
 ### Using Plugins
 
-1. Browse the [Plugin Center](plugins/index.md) and download the plugin file (`.py`)
-2. Open OpenWebUI **Admin Panel** → **Settings** → **Plugins**
-3. Click the upload button and select the `.py` file
-4. Refresh the page and enable the plugin in your chat settings
+1. **Install from OpenWebUI Community (Recommended)**:
+   - Visit my profile: [Fu-Jie's Profile](https://openwebui.com/u/Fu-Jie)
+   - Browse the plugins and select the one you like.
+   - Click "Get" to import it directly into your OpenWebUI instance.
+
+2. **Manual Installation**:
+   - Browse the [Plugin Center](plugins/index.md) and download the plugin file (`.py`)
+   - Open OpenWebUI **Admin Panel** → **Settings** → **Plugins**
+   - Click the upload button and select the `.py` file
+   - Refresh the page and enable the plugin in your chat settings
 
 ---
 

docs/index.zh.md

@@ -104,10 +104,16 @@ hide:
 
 ### 使用插件
 
-1. 浏览[插件中心](plugins/index.md)并下载插件文件（`.py`）
-2. 打开 OpenWebUI **管理面板** → **设置** → **插件**
-3. 点击上传按钮并选择 `.py` 文件
-4. 刷新页面并在聊天设置中启用插件
+1. **从 OpenWebUI 社区安装 (推荐)**:
+   - 访问我的主页: [Fu-Jie's Profile](https://openwebui.com/u/Fu-Jie)
+   - 浏览插件列表，选择你喜欢的插件。
+   - 点击 "Get" 按钮，将其直接导入到你的 OpenWebUI 实例中。
+
+2. **手动安装**:
+   - 浏览[插件中心](plugins/index.md)并下载插件文件（`.py`）
+   - 打开 OpenWebUI **管理面板** → **设置** → **插件**
+   - 点击上传按钮并选择 `.py` 文件
+   - 刷新页面并在聊天设置中启用插件
 
 ---
 

docs/js-visualization-guide.md

@@ -0,0 +1,290 @@
+# 使用 JavaScript 生成可视化内容的技术方案
+
+## 概述
+
+本文档描述了在 OpenWebUI Action 插件中使用浏览器端 JavaScript 代码生成可视化内容（如思维导图、信息图等）并将结果保存到消息中的技术方案。
+
+## 核心架构
+
+```mermaid
+sequenceDiagram
+    participant Plugin as Python 插件
+    participant EventCall as __event_call__
+    participant Browser as 浏览器 (JS)
+    participant API as OpenWebUI API
+    participant DB as 数据库
+
+    Plugin->>EventCall: 1. 发送 execute 事件 (含 JS 代码)
+    EventCall->>Browser: 2. 执行 JS 代码
+    Browser->>Browser: 3. 加载可视化库 (D3/Markmap/AntV)
+    Browser->>Browser: 4. 渲染可视化内容
+    Browser->>Browser: 5. 转换为 Base64 Data URI
+    Browser->>API: 6. GET 获取当前消息内容
+    API-->>Browser: 7. 返回消息数据
+    Browser->>API: 8. POST 追加 Markdown 图片到消息
+    API->>DB: 9. 保存更新后的消息
+```
+
+## 关键步骤
+
+### 1. Python 端通过 `__event_call__` 执行 JS
+
+Python 插件**不直接修改 `body["messages"]`**，而是通过 `__event_call__` 发送 JS 代码让浏览器执行：
+
+```python
+async def action(
+    self,
+    body: dict,
+    __user__: dict = None,
+    __event_emitter__=None,
+    __event_call__: Optional[Callable[[Any], Awaitable[None]]] = None,
+    __metadata__: Optional[dict] = None,
+    __request__: Request = None,
+) -> dict:
+    # 从 body 获取 chat_id 和 message_id
+    chat_id = body.get("chat_id", "")
+    message_id = body.get("id", "")  # 注意：body["id"] 是 message_id
+    
+    # 通过 __event_call__ 执行 JS 代码
+    if __event_call__:
+        await __event_call__({
+            "type": "execute",
+            "data": {
+                "code": f"""
+(async function() {{
+    const chatId = "{chat_id}";
+    const messageId = "{message_id}";
+    // ... JS 渲染和 API 更新逻辑 ...
+}})();
+                """
+            },
+        })
+    
+    # 不修改 body，直接返回
+    return body
+```
+
+### 2. JavaScript 加载可视化库
+
+在浏览器端动态加载所需的 JS 库：
+
+```javascript
+// 加载 D3.js
+if (!window.d3) {
+    await new Promise((resolve, reject) => {
+        const script = document.createElement('script');
+        script.src = 'https://cdn.jsdelivr.net/npm/d3@7';
+        script.onload = resolve;
+        script.onerror = reject;
+        document.head.appendChild(script);
+    });
+}
+
+// 加载 Markmap (思维导图)
+if (!window.markmap) {
+    await loadScript('https://cdn.jsdelivr.net/npm/markmap-lib@0.17');
+    await loadScript('https://cdn.jsdelivr.net/npm/markmap-view@0.17');
+}
+```
+
+### 3. 渲染并转换为 Data URI
+
+```javascript
+// 创建 SVG 元素
+const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
+svg.setAttribute('width', '800');
+svg.setAttribute('height', '600');
+svg.setAttribute('xmlns', 'http://www.w3.org/2000/svg');
+
+// ... 执行渲染逻辑 (添加图形元素) ...
+
+// 转换为 Base64 Data URI
+const svgData = new XMLSerializer().serializeToString(svg);
+const base64 = btoa(unescape(encodeURIComponent(svgData)));
+const dataUri = 'data:image/svg+xml;base64,' + base64;
+```
+
+### 4. 获取当前消息内容
+
+由于 Python 端不传递原始内容，JS 需要通过 API 获取：
+
+```javascript
+const token = localStorage.getItem('token');
+
+// 获取当前聊天数据
+const getResponse = await fetch(`/api/v1/chats/${chatId}`, {
+    method: 'GET',
+    headers: {
+        'Authorization': `Bearer ${token}`
+    }
+});
+
+const chatData = await getResponse.json();
+
+// 查找目标消息
+let originalContent = '';
+if (chatData.chat && chatData.chat.messages) {
+    const targetMsg = chatData.chat.messages.find(m => m.id === messageId);
+    if (targetMsg && targetMsg.content) {
+        originalContent = targetMsg.content;
+    }
+}
+```
+
+### 5. 调用 API 更新消息
+
+```javascript
+// 构造新内容：原始内容 + Markdown 图片
+const markdownImage = `![可视化图片](${dataUri})`;
+const newContent = originalContent + '\n\n' + markdownImage;
+
+// 调用 API 更新消息
+const response = await fetch(`/api/v1/chats/${chatId}/messages/${messageId}/event`, {
+    method: 'POST',
+    headers: {
+        'Content-Type': 'application/json',
+        'Authorization': `Bearer ${token}`
+    },
+    body: JSON.stringify({
+        type: 'chat:message',
+        data: { content: newContent }
+    })
+});
+
+if (response.ok) {
+    console.log('消息更新成功！');
+}
+```
+
+## 完整示例
+
+参考 [js_render_poc.py](../plugins/actions/js-render-poc/js_render_poc.py) 获取完整的 PoC 实现。
+
+## 事件类型
+
+| 类型 | 用途 |
+|------|------|
+| `chat:message:delta` | 增量更新（追加文本） |
+| `chat:message` | 完全替换消息内容 |
+
+```javascript
+// 增量更新
+{ type: "chat:message:delta", data: { content: "追加的内容" } }
+
+// 完全替换
+{ type: "chat:message", data: { content: "完整的新内容" } }
+```
+
+## 关键数据来源
+
+| 数据 | 来源 | 说明 |
+|------|------|------|
+| `chat_id` | `body["chat_id"]` | 聊天会话 ID |
+| `message_id` | `body["id"]` | ⚠️ 注意：是 `body["id"]`，不是 `body["message_id"]` |
+| `token` | `localStorage.getItem('token')` | 用户认证 Token |
+| `originalContent` | 通过 API `GET /api/v1/chats/{chatId}` 获取 | 当前消息内容 |
+
+## Python 端 API
+
+| 参数 | 类型 | 说明 |
+|------|------|------|
+| `__event_emitter__` | Callable | 发送状态/通知事件 |
+| `__event_call__` | Callable | 执行 JS 代码（用于可视化渲染） |
+| `__metadata__` | dict | 元数据（可能为 None） |
+| `body` | dict | 请求体，包含 messages、chat_id、id 等 |
+
+### body 结构示例
+
+```json
+{
+  "model": "gemini-3-flash-preview",
+  "messages": [...],
+  "chat_id": "ac2633a3-5731-4944-98e3-bf9b3f0ef0ab",
+  "id": "2e0bb7d4-dfc0-43d7-b028-fd9e06c6fdc8",
+  "session_id": "bX30sHI8r4_CKxCdAAAL"
+}
+```
+
+### 常用事件
+
+```python
+# 发送状态更新
+await __event_emitter__({
+    "type": "status",
+    "data": {"description": "正在渲染...", "done": False}
+})
+
+# 执行 JS 代码
+await __event_call__({
+    "type": "execute",
+    "data": {"code": "console.log('Hello from Python!')"}
+})
+
+# 发送通知
+await __event_emitter__({
+    "type": "notification",
+    "data": {"type": "success", "content": "渲染完成！"}
+})
+```
+
+## 适用场景
+
+- **思维导图** (Markmap)
+- **信息图** (AntV Infographic)
+- **流程图** (Mermaid)
+- **数据图表** (ECharts, Chart.js)
+- **任何需要 JS 渲染的可视化内容**
+
+## 注意事项
+
+### 1. 竞态条件问题
+
+⚠️ **多次快速点击会导致内容覆盖问题**
+
+由于 API 调用是异步的，如果用户快速多次触发 Action：
+- 第一次点击：获取原始内容 A → 渲染 → 更新为 A+图片1
+- 第二次点击：可能获取到旧内容 A（第一次还没保存完）→ 更新为 A+图片2
+
+结果：图片1 被覆盖丢失！
+
+**解决方案**：
+- 添加防抖（debounce）机制
+- 使用锁/标志位防止重复执行
+- 或使用 `chat:message:delta` 增量更新
+
+### 2. 不要直接修改 `body["messages"]`
+
+消息更新应由 JS 通过 API 完成，确保获取最新内容。
+
+### 3. f-string 限制
+
+Python f-string 内不能直接使用反斜杠，需要将转义字符串预先处理：
+
+```python
+# 转义 JSON 中的特殊字符
+body_json = json.dumps(data, ensure_ascii=False)
+escaped = body_json.replace("\\", "\\\\").replace("`", "\\`").replace("${", "\\${")
+```
+
+### 4. Data URI 大小限制
+
+Base64 编码会增加约 33% 的体积，复杂图片可能导致消息过大。
+
+### 5. 跨域问题
+
+确保 CDN 资源支持 CORS。
+
+### 6. API 权限
+
+确保用户 token 有权限访问和更新目标消息。
+
+## 与传统方式对比
+
+| 特性 | 传统方式 (修改 body) | 新方式 (__event_call__) |
+|------|---------------------|------------------------|
+| 消息更新 | Python 直接修改 | JS 通过 API 更新 |
+| 原始内容 | Python 传递给 JS | JS 通过 API 获取 |
+| 灵活性 | 低 | 高 |
+| 实时性 | 一次性 | 可多次更新 |
+| 复杂度 | 简单 | 中等 |
+| 竞态风险 | 低 | ⚠️ 需要处理 |

plugins/actions/ACTION_PLUGIN_TEMPLATE.py

@@ -315,7 +315,7 @@ class Action:
                     if role == "user"
                     else "Assistant" if role == "assistant" else role
                 )
-                aggregated_parts.append(f"[{role_label} Message {i}]\n{text_content}")
+                aggregated_parts.append(f"{text_content}")
 
         if not aggregated_parts:
             return body  # Or handle error

plugins/actions/ACTION_PLUGIN_TEMPLATE_CN.py

@@ -326,7 +326,7 @@ class Action:
                     if role == "user"
                     else "助手" if role == "assistant" else role
                 )
-                aggregated_parts.append(f"[{role_label} 消息 {i}]\n{text_content}")
+                aggregated_parts.append(f"{text_content}")
 
         if not aggregated_parts:
             return body  # 或者处理错误

plugins/actions/export_to_docx/README.md

@@ -75,6 +75,14 @@ All dependencies are declared in the plugin docstring.
 
 ## Changelog
 
+### v0.3.0
+
+- **Mermaid Diagrams**: Native support for rendering Mermaid diagrams as images in Word.
+- **Native Math**: Converts LaTeX equations to native Office MathML for editable equations.
+- **Citations**: Automatic bibliography generation and citation linking.
+- **Reasoning Removal**: Option to strip `<think>` blocks from the output.
+- **Table Enhancements**: Improved table formatting with smart column widths.
+
 ### v0.2.0
 - Added native math equation support (LaTeX → OMML)
 - Added Mermaid diagram rendering

plugins/actions/export_to_docx/README_CN.md

@@ -75,6 +75,14 @@
 
 ## 更新日志
 
+### v0.3.0
+
+- **Mermaid 图表**: 原生支持将 Mermaid 图表渲染为 Word 中的图片。
+- **原生公式**: 将 LaTeX 公式转换为原生 Office MathML，支持在 Word 中编辑。
+- **引用参考**: 自动生成参考文献列表并链接引用。
+- **移除推理**: 选项支持从输出中移除 `<think>` 推理块。
+- **表格增强**: 改进表格格式，支持智能列宽。
+
 ### v0.2.0
 - 新增原生数学公式支持（LaTeX → OMML）
 - 新增 Mermaid 图表渲染

plugins/actions/export_to_docx/export_to_word.py

@@ -3,7 +3,7 @@ title: Export to Word
 author: Fu-Jie
 author_url: https://github.com/Fu-Jie
 funding_url: https://github.com/Fu-Jie/awesome-openwebui
-version: 0.2.0
+version: 0.3.0
 icon_url: data:image/svg+xml;base64,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
 requirements: python-docx==1.1.2, latex2mathml, mathml2omml
 description: Export conversation to Word (.docx) with syntax highlighting, native math equations (LaTeX), Mermaid diagrams, citations, and enhanced table formatting.
@@ -158,6 +158,10 @@ class Action:
     ):
         logger.info(f"action:{__name__}")
 
+        # Reset counters for new request
+        self._mermaid_figure_counter = 0
+        self._bookmark_id_counter = 1
+
         # Parse user info
         if isinstance(__user__, (list, tuple)):
             user_language = (

plugins/actions/export_to_docx/export_to_word_cn.py

@@ -3,7 +3,7 @@ title: 导出为 Word
 author: Fu-Jie
 author_url: https://github.com/Fu-Jie
 funding_url: https://github.com/Fu-Jie/awesome-openwebui
-version: 0.2.0
+version: 0.3.0
 icon_url: data:image/svg+xml;base64,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
 requirements: python-docx==1.1.2, Pygments>=2.15.0, latex2mathml, mathml2omml
 description: 将对话导出为 Word (.docx)，支持代码高亮、原生数学公式 (LaTeX)、Mermaid 图表、引用参考和增强表格格式。
@@ -158,6 +158,10 @@ class Action:
     ):
         logger.info(f"action:{__name__}")
 
+        # Reset counters for new request
+        self._mermaid_figure_counter = 0
+        self._bookmark_id_counter = 1
+
         # 解析用户信息
         if isinstance(__user__, (list, tuple)):
             user_language = (

plugins/actions/js-render-poc/js_render_poc.py

@@ -0,0 +1,257 @@
+"""
+title: JS Render PoC
+author: Fu-Jie
+version: 0.6.0
+description: Proof of concept for JS rendering + API write-back pattern. JS renders SVG and updates message via API.
+"""
+
+import time
+import json
+import logging
+from typing import Optional, Callable, Awaitable, Any
+from pydantic import BaseModel, Field
+from fastapi import Request
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger(__name__)
+
+
+class Action:
+    class Valves(BaseModel):
+        pass
+
+    def __init__(self):
+        self.valves = self.Valves()
+
+    def _extract_chat_id(self, body: dict, metadata: Optional[dict]) -> str:
+        """Extract chat_id from body or metadata"""
+        if isinstance(body, dict):
+            # body["chat_id"] 是 chat_id
+            chat_id = body.get("chat_id")
+            if isinstance(chat_id, str) and chat_id.strip():
+                return chat_id.strip()
+
+            body_metadata = body.get("metadata", {})
+            if isinstance(body_metadata, dict):
+                chat_id = body_metadata.get("chat_id")
+                if isinstance(chat_id, str) and chat_id.strip():
+                    return chat_id.strip()
+
+        if isinstance(metadata, dict):
+            chat_id = metadata.get("chat_id")
+            if isinstance(chat_id, str) and chat_id.strip():
+                return chat_id.strip()
+
+        return ""
+
+    def _extract_message_id(self, body: dict, metadata: Optional[dict]) -> str:
+        """Extract message_id from body or metadata"""
+        if isinstance(body, dict):
+            # body["id"] 是 message_id
+            message_id = body.get("id")
+            if isinstance(message_id, str) and message_id.strip():
+                return message_id.strip()
+
+            body_metadata = body.get("metadata", {})
+            if isinstance(body_metadata, dict):
+                message_id = body_metadata.get("message_id")
+                if isinstance(message_id, str) and message_id.strip():
+                    return message_id.strip()
+
+        if isinstance(metadata, dict):
+            message_id = metadata.get("message_id")
+            if isinstance(message_id, str) and message_id.strip():
+                return message_id.strip()
+
+        return ""
+
+    async def action(
+        self,
+        body: dict,
+        __user__: dict = None,
+        __event_emitter__=None,
+        __event_call__: Optional[Callable[[Any], Awaitable[None]]] = None,
+        __metadata__: Optional[dict] = None,
+        __request__: Request = None,
+    ) -> dict:
+        """
+        PoC: Use __event_call__ to execute JS that renders SVG and updates message via API.
+        """
+        # 准备调试数据
+        body_for_log = {}
+        for k, v in body.items():
+            if k == "messages":
+                body_for_log[k] = f"[{len(v)} messages]"
+            else:
+                body_for_log[k] = v
+
+        body_json = json.dumps(body_for_log, ensure_ascii=False, default=str)
+        metadata_json = (
+            json.dumps(__metadata__, ensure_ascii=False, default=str)
+            if __metadata__
+            else "null"
+        )
+
+        # 转义 JSON 中的特殊字符以便嵌入 JS
+        body_json_escaped = (
+            body_json.replace("\\", "\\\\").replace("`", "\\`").replace("${", "\\${")
+        )
+        metadata_json_escaped = (
+            metadata_json.replace("\\", "\\\\")
+            .replace("`", "\\`")
+            .replace("${", "\\${")
+        )
+
+        chat_id = self._extract_chat_id(body, __metadata__)
+        message_id = self._extract_message_id(body, __metadata__)
+
+        unique_id = f"poc_{int(time.time() * 1000)}"
+
+        if __event_emitter__:
+            await __event_emitter__(
+                {
+                    "type": "status",
+                    "data": {"description": "🔄 正在渲染...", "done": False},
+                }
+            )
+
+        if __event_call__:
+            await __event_call__(
+                {
+                    "type": "execute",
+                    "data": {
+                        "code": f"""
+(async function() {{
+    const uniqueId = "{unique_id}";
+    const chatId = "{chat_id}";
+    const messageId = "{message_id}";
+    
+    // ===== DEBUG: 输出 Python 端的数据 =====
+    console.log("[JS Render PoC] ===== DEBUG INFO (from Python) =====");
+    console.log("[JS Render PoC] body:", `{body_json_escaped}`);
+    console.log("[JS Render PoC] __metadata__:", `{metadata_json_escaped}`);
+    console.log("[JS Render PoC] Extracted: chatId=", chatId, "messageId=", messageId);
+    console.log("[JS Render PoC] =========================================");
+    
+    try {{
+        console.log("[JS Render PoC] Starting SVG render...");
+        
+        // Create SVG
+        const svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
+        svg.setAttribute("width", "200");
+        svg.setAttribute("height", "200");
+        svg.setAttribute("viewBox", "0 0 200 200");
+        svg.setAttribute("xmlns", "http://www.w3.org/2000/svg");
+        
+        const defs = document.createElementNS("http://www.w3.org/2000/svg", "defs");
+        const gradient = document.createElementNS("http://www.w3.org/2000/svg", "linearGradient");
+        gradient.setAttribute("id", "grad-" + uniqueId);
+        gradient.innerHTML = `
+            <stop offset="0%" style="stop-color:#1e88e5;stop-opacity:1" />
+            <stop offset="100%" style="stop-color:#43a047;stop-opacity:1" />
+        `;
+        defs.appendChild(gradient);
+        svg.appendChild(defs);
+        
+        const circle = document.createElementNS("http://www.w3.org/2000/svg", "circle");
+        circle.setAttribute("cx", "100");
+        circle.setAttribute("cy", "100");
+        circle.setAttribute("r", "80");
+        circle.setAttribute("fill", `url(#grad-${{uniqueId}})`);
+        svg.appendChild(circle);
+        
+        const text = document.createElementNS("http://www.w3.org/2000/svg", "text");
+        text.setAttribute("x", "100");
+        text.setAttribute("y", "105");
+        text.setAttribute("text-anchor", "middle");
+        text.setAttribute("fill", "white");
+        text.setAttribute("font-size", "16");
+        text.setAttribute("font-weight", "bold");
+        text.textContent = "PoC Success!";
+        svg.appendChild(text);
+        
+        // Convert to Base64 Data URI
+        const svgData = new XMLSerializer().serializeToString(svg);
+        const base64 = btoa(unescape(encodeURIComponent(svgData)));
+        const dataUri = "data:image/svg+xml;base64," + base64;
+        
+        console.log("[JS Render PoC] SVG rendered, data URI length:", dataUri.length);
+        
+        // Call API - 完全替换方案（更稳定）
+        if (chatId && messageId) {{
+            const token = localStorage.getItem("token");
+            
+            // 1. 获取当前消息内容
+            const getResponse = await fetch(`/api/v1/chats/${{chatId}}`, {{
+                method: "GET",
+                headers: {{ "Authorization": `Bearer ${{token}}` }}
+            }});
+            
+            if (!getResponse.ok) {{
+                throw new Error("Failed to get chat data: " + getResponse.status);
+            }}
+            
+            const chatData = await getResponse.json();
+            console.log("[JS Render PoC] Got chat data");
+            
+            let originalContent = "";
+            if (chatData.chat && chatData.chat.messages) {{
+                const targetMsg = chatData.chat.messages.find(m => m.id === messageId);
+                if (targetMsg && targetMsg.content) {{
+                    originalContent = targetMsg.content;
+                    console.log("[JS Render PoC] Found original content, length:", originalContent.length);
+                }}
+            }}
+            
+            // 2. 移除已存在的 PoC 图片（如果有的话）
+            // 匹配 ![JS Render PoC 生成的 SVG](data:...) 格式
+            const pocImagePattern = /\\n*!\\[JS Render PoC[^\\]]*\\]\\(data:image\\/svg\\+xml;base64,[^)]+\\)/g;
+            let cleanedContent = originalContent.replace(pocImagePattern, "");
+            // 移除可能残留的多余空行
+            cleanedContent = cleanedContent.replace(/\\n{{3,}}/g, "\\n\\n").trim();
+            
+            if (cleanedContent !== originalContent) {{
+                console.log("[JS Render PoC] Removed existing PoC image(s)");
+            }}
+            
+            // 3. 添加新的 Markdown 图片
+            const markdownImage = `![JS Render PoC 生成的 SVG](${{dataUri}})`;
+            const newContent = cleanedContent + "\\n\\n" + markdownImage;
+            
+            // 3. 使用 chat:message 完全替换
+            const updateResponse = await fetch(`/api/v1/chats/${{chatId}}/messages/${{messageId}}/event`, {{
+                method: "POST",
+                headers: {{
+                    "Content-Type": "application/json",
+                    "Authorization": `Bearer ${{token}}`
+                }},
+                body: JSON.stringify({{
+                    type: "chat:message",
+                    data: {{ content: newContent }}
+                }})
+            }});
+            
+            if (updateResponse.ok) {{
+                console.log("[JS Render PoC] ✅ Message updated successfully!");
+            }} else {{
+                console.error("[JS Render PoC] API error:", updateResponse.status, await updateResponse.text());
+            }}
+        }} else {{
+            console.warn("[JS Render PoC] ⚠️ Missing chatId or messageId, cannot persist.");
+        }}
+        
+    }} catch (error) {{
+        console.error("[JS Render PoC] Error:", error);
+    }}
+}})();
+                        """
+                    },
+                }
+            )
+
+        if __event_emitter__:
+            await __event_emitter__(
+                {"type": "status", "data": {"description": "✅ 渲染完成", "done": True}}
+            )
+
+        return body