probe: fast report stamps last-seen; snapshot TTL 900ms (V2.0.3)

internal/web/controller/agent_fast_report_test.go

@@ -18,9 +18,10 @@ import (
 )
 
 // V2.0.1 probe batch, master side: the fast-report endpoint ingests
-// metrics without touching liveness (last-seen stays the
-// heartbeat's), and the config poll carries the cadence + the
-// node's counted-interface pin.
+// metrics, and the config poll carries the cadence + the node's
+// counted-interface pin. Since V2.0.3 the fast report also stamps
+// last-seen (the hub's themes gate batches on its freshness); it
+// originally did not — see the probeReport handler comment.
 func TestAgentFastReportAndConfigKeys(t *testing.T) {
 	gin.SetMode(gin.TestMode)
 	dbDir := t.TempDir()
@@ -71,6 +72,12 @@ func TestAgentFastReportAndConfigKeys(t *testing.T) {
 
 	metrics := `{"probeMetrics":{"bootId":"boot-f/0123456789abcdef","uptime":60,` +
 		`"memTotal":1000,"memUsed":400,"netRxTotal":10,"netTxTotal":20}}`
+	// Age the stamp first so the fast report's touch is observable
+	// even within the same millisecond as the heartbeat's.
+	stale := seenAfterHeartbeat - 120_000
+	if err := db.Model(&model.AgentNode{}).Where("id = ?", agent.Id).Update("last_seen", stale).Error; err != nil {
+		t.Fatalf("age last-seen: %v", err)
+	}
 	if code, body := call(http.MethodPost, "/panel/api/agent/probe-report", metrics); code != http.StatusOK {
 		t.Fatalf("probe-report: %d (%s)", code, body)
 	}
@@ -78,8 +85,8 @@ func TestAgentFastReportAndConfigKeys(t *testing.T) {
 	if row.ProbeMemUsed != 400 || row.ProbeAt == 0 {
 		t.Errorf("fast report metrics not stored: %+v", row)
 	}
-	if row.LastSeen != seenAfterHeartbeat {
-		t.Errorf("fast report moved last-seen: %d -> %d (liveness is the heartbeat's signal)", seenAfterHeartbeat, row.LastSeen)
+	if row.LastSeen <= stale {
+		t.Errorf("fast report did not stamp last-seen: %d -> %d (V2.0.3: themes gate on it)", stale, row.LastSeen)
 	}
 
 	// Unauthorized callers are refused.