refactor(utils): enhance Markdown text cleaning for TTS compatibility

src/lib/utils/index.ts

@@ -552,7 +552,31 @@ export const removeEmojis = (str: string) => {
 };
 
 export const removeFormattings = (str: string) => {
-	return str.replace(/(\*)(.*?)\1/g, '').replace(/(```)(.*?)\1/gs, '');
+	return str
+        // Block elements (remove completely)
+        .replace(/(```[\s\S]*?```)/g, '')                    // Code blocks
+        .replace(/^\|.*\|$/gm, '')                          // Tables};
+		// Inline elements (preserve content)
+        .replace(/(?:\*\*|__)(.*?)(?:\*\*|__)/g, '$1')      // Bold
+        .replace(/(?:[*_])(.*?)(?:[*_])/g, '$1')            // Italic
+        .replace(/~~(.*?)~~/g, '$1')                        // Strikethrough
+        .replace(/`([^`]+)`/g, '$1')                        // Inline code
+        
+        // Links and images
+        .replace(/!?\[([^\]]*)\](?:\([^)]+\)|\[[^\]]*\])/g, '$1') // Links & images
+        .replace(/^\[[^\]]+\]:\s*.*$/gm, '')               // Reference definitions
+        
+        // Block formatting
+        .replace(/^#{1,6}\s+/gm, '')                       // Headers
+        .replace(/^\s*[-*+]\s+/gm, '')                     // Lists
+        .replace(/^\s*(?:\d+\.)\s+/gm, '')                 // Numbered lists
+        .replace(/^\s*>[> ]*/gm, '')                       // Blockquotes
+        .replace(/^\s*:\s+/gm, '')                         // Definition lists
+        
+        // Cleanup
+        .replace(/\[\^[^\]]*\]/g, '')                      // Footnotes
+        .replace(/[-*_~]/g, '')                            // Remaining markers
+        .replace(/\n{2,}/g, '\n')                          // Multiple newlines
 };
 
 export const cleanText = (content: string) => {