refactor(visibility): route is_owner through the shared did_matches matcher (#153)

Author: Gravirei

crates/gitlawb-node/src/api/mod.rs

@@ -114,6 +114,12 @@ mod did_tests {
         assert!(!did_matches("did:key:zABC", "did:key:zXYZ"));
         assert!(!did_matches("zABC", "zXYZ"));
     }
+
+    #[test]
+    fn empty_did_matches() {
+        assert!(did_matches("", ""));
+        assert!(did_matches("", "did:key:"));
+    }
 }
 
 /// Drift guard (plan 002 §Gate-type table, Step 5). Every in-scope mutation

crates/gitlawb-node/src/visibility.rs

@@ -445,24 +445,12 @@ mod tests {
     fn cross_method_did_denied_with_bare_owner() {
         let rules = [rule("/", VisibilityMode::A, &[])];
         assert_eq!(
-            visibility_check(
-                &rules,
-                false,
-                "z6MkFoo",
-                Some("did:gitlawb:z6MkFoo"),
-                "/"
-            ),
+            visibility_check(&rules, false, "z6MkFoo", Some("did:gitlawb:z6MkFoo"), "/"),
             Decision::Deny,
             "cross-method DID must not match a bare did:key owner"
         );
         assert_eq!(
-            visibility_check(
-                &rules,
-                false,
-                "z6MkFoo",
-                Some("did:web:z6MkFoo"),
-                "/"
-            ),
+            visibility_check(&rules, false, "z6MkFoo", Some("did:web:z6MkFoo"), "/"),
             Decision::Deny,
             "did:web must not match a bare did:key owner"
         );