feat: experimental markdown support (#658)

* feat: test button

* fix: enter

* fix: bing suggested

* fix: bing suggested

* fix: bing suggested

* fix: button under icqq

* fix: 删除suno心跳

* fix: add default md handler

* fix: duplicate this

* fix: add a button

* Update md.js

* Update md.js

* fix: api stream

* fix: claude.ai

* fix: md enhancement

* fix: optional buttons

* fix: mode name

* fix: ignore md while not enable md

apps/md.js

@@ -0,0 +1,40 @@
+import plugin from '../../../lib/plugins/plugin.js'
+import {Config} from '../utils/config.js'
+
+export class ChatGPTMarkdownHandler extends plugin {
+  constructor () {
+    super({
+      name: 'chatgptmd处理器',
+      priority: -100,
+      namespace: 'chatgpt-plugin',
+      handler: [{
+        key: 'chatgpt.markdown.convert',
+        fn: 'mdHandler'
+      }]
+    })
+  }
+
+  async mdHandler (e, options, reject) {
+    const { content, prompt, use } = options
+    if (Config.enableMd) {
+      let mode = transUse(use)
+      return `> ${prompt}\n\n---\n${content}\n\n---\n*当前模式：${mode}*`
+    } else {
+      return content
+    }
+  }
+}
+
+function transUse (use) {
+  let useMap = {
+    api: Config.model,
+    bing: '必应(Copilot)' + Config.toneStyle,
+    gemini: Config.geminiModel,
+    xh: '讯飞星火 ' + Config.xhmode,
+    qwen: '通义千问 ' + Config.qwenModel,
+    claude2: 'Claude 3 Sonnet',
+    glm4: 'ChatGLM4',
+    chat3: 'ChatGPT官网'
+  }
+  return useMap[use] || use
+}