Implement exact State Anchor mount and lease lifecycle

crates/lazaret-storage-catalog/tests/catalog.rs

@@ -174,6 +174,66 @@ fn shared_artifact_waits_for_every_lease() {
     );
 }
 
+#[test]
+fn release_evidence_is_checked_while_lease_remains_locked() {
+    let fixture = Fixture::new();
+    let artifact = fixture.publish(31);
+    let exact = lease(&artifact, 1, 3);
+    fixture.catalog.acquire_lease(&exact).unwrap();
+
+    let refused = fixture.catalog.release_lease_checked(&exact, || {
+        Err(CatalogError::Io(std::io::Error::other(
+            "injected release-evidence mismatch",
+        )))
+    });
+    assert!(matches!(refused, Err(CatalogError::Io(_))));
+    assert_eq!(
+        fixture.catalog.snapshot().unwrap().artifact_leases,
+        vec![exact]
+    );
+
+    fixture
+        .catalog
+        .release_lease_checked(&exact, || Ok(()))
+        .unwrap();
+    assert!(
+        fixture
+            .catalog
+            .snapshot()
+            .unwrap()
+            .artifact_leases
+            .is_empty()
+    );
+}
+
+#[test]
+fn lease_acquisition_binds_the_exact_artifact_row() {
+    let fixture = Fixture::new();
+    let artifact = fixture.publish(32);
+    let exact = lease(&artifact, 2, 4);
+    let mut forged = artifact.clone();
+    forged.inode = InodeId::new(9_999);
+
+    assert!(matches!(
+        fixture.catalog.acquire_lease_checked(&forged, &exact),
+        Err(CatalogError::OwnershipMismatch {
+            row: CatalogRow::PreparedArtifact
+        })
+    ));
+    assert!(
+        fixture
+            .catalog
+            .snapshot()
+            .unwrap()
+            .artifact_leases
+            .is_empty()
+    );
+    fixture
+        .catalog
+        .acquire_lease_checked(&artifact, &exact)
+        .unwrap();
+}
+
 #[test]
 fn one_domain_generation_cannot_bind_two_artifacts() {
     let fixture = Fixture::new();