1. Check if a path ends with a slash (/)
2. If it does, treat it as a directory and read all files within it
3. For directories like .cursor/rules/, it will scan all files and include their content in the prompt
4. Each file from a directory will be prefixed with "# From filename" for clarity
Added nil check in GetPersistentShell before accessing
shellInstance.isAlive
to prevent panic when newPersistentShell returns nil due to shell
startup
errors. This resolves the "invalid memory address or nil pointer
dereference"
error that was occurring in the shell tool.