feat: list what the store holds for this repository

src/cli/link.rs

@@ -30,6 +30,12 @@ pub enum Link {
         store: Store,
     },
 
+    /// List what this repository keeps in the store
+    List {
+        #[command(flatten)]
+        store: Store,
+    },
+
     /// List untracked paths a sandbox would still see
     Check {
         /// Limit the listing to these paths