Fixed resume matching to respect case insensitivity when using WSL mount points (#8000)

This fixes #7995

codex-rs/core/src/lib.rs

@@ -41,6 +41,7 @@ mod mcp_tool_call;
 mod message_history;
 mod model_provider_info;
 pub mod parse_command;
+pub mod path_utils;
 pub mod powershell;
 pub mod sandboxing;
 mod stream_events_utils;