Enhanced Tool Permission System

• New permission checking functions for file operations:
• d_() - Validates read permissions before file access, providing clear error messages when permissions haven't been granted
• Vg() - Validates write permissions before file modifications, ensuring proper access control

These functions improve security by checking if Claude has been granted the necessary permissions before attempting file operations. Users will see messages like:

• "Claude requested permissions to read from [path], but you haven't granted it yet."
• "Claude requested permissions to write to [path], but you haven't granted it yet."