Fix syntax error - remove extra closing brace

Removed extra closing brace on line 862 that was causing parse error.
The try/catch/finally/foreach structure now has correct brace matching.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: claude

public/Invoke-AITool.ps1

@@ -859,7 +859,6 @@ function Invoke-AITool {
                     Pop-Location
                     Write-PSFMessage -Level Verbose -Message "Restored location after processing file"
                 }
-                }
             }
         } # End of foreach ($singleFile in $filesToProcess)