Add tool ranker fallback policy tests

src/model/ai-capability-info.ts

@@ -1,4 +1,4 @@
-import {AiProvider} from "./ai-provider";
+import {AiProvider} from "./ai-provider.js";
 
 export type AiEndpointInfo = {
     provider?: AiProvider;

src/model/ai-model-capabilities.ts

@@ -1,4 +1,4 @@
-import {AiCapabilityInfo} from "./ai-capability-info";
+import {AiCapabilityInfo} from "./ai-capability-info.js";
 
 export class AiModelCapabilities {
     chat: AiCapabilityInfo | undefined;