Function store_path 

fn store_path(app_support: &Path, config_dir: &Path) -> PathBuf

This config dir’s redb store: <app_support>/stores/<stable-key>.redb.

The key is stable across Rust releases (forge_sdk::config_dir_store_key), unlike the lock’s config_dir_hash: a nightly bump must not open a new empty store and orphan every row.