fix: remove unused import and suppress deprecation warning

- Remove unused `CodeownersEntry` import from common.rs
- Add #[allow(deprecated)] to suppress cargo_bin deprecation in tests

Author: claude

ci/tests/test_cli.rs

@@ -4,6 +4,7 @@ use std::fs;
 use tempfile::TempDir;
 
 /// Get the CLI command for testing
+#[allow(deprecated)]
 fn ci() -> Command {
     Command::cargo_bin("ci").unwrap()
 }

codeinput/src/core/common.rs

@@ -4,8 +4,6 @@ use ignore::Walk;
 use sha2::{Digest, Sha256};
 use std::path::{Path, PathBuf};
 
-use super::types::CodeownersEntry;
-
 /// Maximum recursion depth for finding CODEOWNERS files (prevents stack overflow on deep structures)
 const MAX_RECURSION_DEPTH: usize = 100;