fix: preserve optional unknown filters

src/application/BinarySessionRecords.ts

@@ -270,11 +270,13 @@ export abstract class BinarySessionRecords {
     return this.#evidence.updateUnknown(input, evidence);
   }
 
-  listUnknowns(filters: {
-    readonly status?: UnknownStatus;
-    readonly severity?: ResidualUnknown["severity"];
-    readonly domain?: string;
-  }): ResidualUnknown[] {
+  listUnknowns(
+    filters: {
+      readonly status?: UnknownStatus;
+      readonly severity?: ResidualUnknown["severity"];
+      readonly domain?: string;
+    } = {},
+  ): ResidualUnknown[] {
     return this.#evidence.listUnknowns(filters);
   }
 

tests/binarySession.test.ts

@@ -31,6 +31,7 @@ describe("binary session", () => {
     const [first] = await targets();
     const session = new BinarySession(cacheProvider([]));
     expect((await session.open(first)).ok).toBe(true);
+    expect(session.listUnknowns()).toEqual([]);
     const identity = session.providerIdentity();
     Reflect.set(identity, "id", "forged");
     expect(session.providerIdentity().id).toBe("fixture");