Function get_current_head_oid 

pub fn get_current_head_oid() -> Result<String>

Get the current HEAD commit OID.

Returns the full SHA-1 hash of the current HEAD commit.

Errors

Returns an error if:

• Not in a git repository
• HEAD cannot be resolved (e.g., unborn branch)
• HEAD is not a commit (e.g., symbolic ref to tag)

Note: This function uses the current working directory to discover the repo.