Fix regex syntax error in detectApprovalRequest

Fix unmatched ) in regular expression by properly escaping
backslashes in character class [?\s.]+$

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

public/claude-ide/ide.js

@@ -487,7 +487,7 @@ function detectApprovalRequest(content) {
             let command = match[1].trim();
 
             // Clean up the command
-            command = command.replace(/[?\s\.]+$/, '').trim();
+            command = command.replace(/[?\\s.]+$/, '').trim();
 
             // Extract explanation from the content
             let explanation = '';