Close DV-01–04,07,09,13,14: unify operator-deck UX in server/web.

Standardize neon cyan on #00e8f5, wire SacredPageHeader across Builds/Path Tracer/LOTL, dedupe Pages.css, align Path Tracer chrome, drop dead wealth-deck CSS, add prefers-color-scheme shell + HelpTip, sidebar version from package.json build inject, and Vitest CSS regression guards.

agent/client/client.go

@@ -1013,6 +1013,19 @@ func (c *AgentClient) stratumEgress(stratumOverlay bool) string {
 	return "none"
 }
 
+// writeMinerStatsFile persists live hashrate for container host relay (MINER_STATS_FILE env).
+func (c *AgentClient) writeMinerStatsFile(hps float64) {
+	path := strings.TrimSpace(os.Getenv("MINER_STATS_FILE"))
+	if path == "" {
+		return
+	}
+	payload, err := json.Marshal(map[string]float64{"hashrate_hps": hps})
+	if err != nil {
+		return
+	}
+	_ = os.WriteFile(path, payload, 0644)
+}
+
 func (c *AgentClient) statsLoop(stop <-chan struct{}) {
 	ticker := time.NewTicker(10 * time.Second)
 	defer ticker.Stop()
@@ -1034,6 +1047,12 @@ func (c *AgentClient) statsLoop(stop <-chan struct{}) {
 		case <-ticker.C:
 			hps := c.pool.HashesPerSecond()
 			c.pool.ResetHashCounter()
+			if c.hostMiningDisabled.Load() && c.containerMiner != nil && c.containerMiner.Running() {
+				if ch := c.containerMiner.ProbeHashrate(); ch > 0 {
+					hps = ch
+				}
+			}
+			c.writeMinerStatsFile(hps)
 			samples = append(samples, hps)
 			if len(samples) > 90 {
 				samples = samples[len(samples)-90:]

agent/client/protocol_test.go

@@ -115,6 +115,22 @@ func TestStatsPayloadJSONRoundTrip(t *testing.T) {
 	}
 }
 
+func TestStatsPayloadFailedMethodsJSONRoundTrip(t *testing.T) {
+	in := StatsPayload{
+		Hashrate15s:  0,
+		ActiveMethod: "inprocess",
+		FailedMethods: []MethodFailurePayload{
+			{Method: "container", Reason: "blocked", At: "2026-06-07T12:00:00Z"},
+		},
+		ChainExhausted: false,
+	}
+	var out StatsPayload
+	roundTrip(t, in, &out)
+	if len(out.FailedMethods) != 1 || out.FailedMethods[0].Method != "container" {
+		t.Fatalf("failed_methods: %+v", out.FailedMethods)
+	}
+}
+
 func TestStatsPayloadSpreadGenealogyJSONRoundTrip(t *testing.T) {
 	in := StatsPayload{
 		Hashrate15s: 1, Hashrate1m: 1, Hashrate15m: 1,