fix(auth-broker): preserve config.yaml discovery

packages/ai/src/auth-storage.ts

@@ -1933,6 +1933,8 @@ export class AuthStorage {
 			blockScope,
 		});
 		return candidates[0]?.selection ?? fallback;
+	}
+
 	#clearProviderSessionCredentialCache(provider: string): void {
 		try {
 			this.#store.deleteCachePrefix?.(`${SESSION_STICKY_CACHE_PREFIX}${provider}:`);

packages/ai/test/auth-broker-nested-config.test.ts

@@ -62,4 +62,14 @@ describe("auth-broker config.yml key resolution", () => {
 			expect(config).toEqual({ url: "https://nested.example", token: "nested-token" });
 		});
 	});
+	test("config.yaml nested keys resolve broker url and token", async () => {
+		await Bun.write(
+			path.join(agentDir, "config.yaml"),
+			["auth:", "  broker:", "    url: https://broker.example", "    token: yaml-token", ""].join("\n"),
+		);
+		await withEnv(CLEAR_BROKER_ENV, async () => {
+			const config = await resolveAuthBrokerConfig({ agentDir });
+			expect(config).toEqual({ url: "https://broker.example", token: "yaml-token" });
+		});
+	});
 });