feat: Implement microphone monitoring feature; enhance text overflow handling and line height across components

src/app/components/RenderMessageContent.tsx

@@ -159,6 +159,24 @@ export function RenderMessageContent({
     </>
   );
 
+  // Check for custom renderer from plugins BEFORE standard type handling
+  // so plugins can intercept any msgtype including custom ones.
+  const customRendererEarly = pluginRegistry.getRenderer('message');
+  if (customRendererEarly) {
+    try {
+      const messageDataEarly = {
+        msgtype: msgType,
+        ...getContent(),
+      };
+      const customContentEarly = customRendererEarly(messageDataEarly, () => null);
+      if (customContentEarly) {
+        return customContentEarly as React.ReactElement;
+      }
+    } catch (error) {
+      console.error('[RenderMessageContent] Custom renderer error (early):', error);
+    }
+  }
+
   if (msgType === MsgType.Text) {
     return (
       <MText