Native grep and ripgrep Support

What: Added native support for grep and rg (ripgrep) commands within Claude's secure sandbox How to use:

# Search for patterns in files
grep "TODO" src/*.js
rg "function.*async" --type js

Details:

• Both commands are treated as read-only operations
• Added to command descriptors and safe commands list
• Integrates with existing path restriction framework
• Eliminates need for shell execution for basic search operations