fix(llama-cpp): explain cleanup failure recovery

extensions/llama-cpp/src/inference-provider.test.ts

@@ -869,7 +869,7 @@ describe("llama.cpp inference provider", () => {
     const disposing = inferenceRuntime.dispose();
     rejectCleanup(new Error("context cleanup failed"));
     await expect(unavailable.result()).resolves.toMatchObject({
-      errorMessage: "llama.cpp runtime stopped after cleanup failed",
+      errorMessage: expect.stringContaining("openclaw gateway restart"),
     });
     await expect(disposing).rejects.toThrow("context cleanup failed");
     expectDisposeCalls(2, 1, 0);

extensions/llama-cpp/src/inference-provider.ts

@@ -95,7 +95,7 @@ function runtimeUnavailableMessage(
     content: [],
     stopReason: "error",
     errorMessage: state.cleanupFailure
-      ? "llama.cpp runtime stopped after cleanup failed"
+      ? "llama.cpp runtime stopped after cleanup failed. Run `openclaw gateway restart` to recover."
       : "llama.cpp runtime is stopping",
   });
 }