feat: include controller in app telemetry reports

Add the felhom-controller container as a special entry in the
app_telemetry array sent to the hub. This reuses all existing hub
infrastructure (storage, aggregation, UI) with zero hub-side changes.

The controller's memory/CPU metrics and log warnings/errors are now
collected alongside app telemetry, giving the hub visibility into
controller health, memory trends, and known issues.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

controller/internal/report/telemetry.go

@@ -9,8 +9,12 @@ import (
 	"gitea.dooplex.hu/admin/felhom-controller/internal/stacks"
 )
 
+// controllerContainerName is the Docker container name for the controller itself.
+const controllerContainerName = "felhom-controller"
+
 // buildAppTelemetrySection collects metrics telemetry and log scans for all
-// non-protected, deployed stacks and returns per-app telemetry data.
+// non-protected, deployed stacks plus the controller itself, and returns
+// per-app telemetry data.
 func buildAppTelemetrySection(stackMgr *stacks.Manager, metricsStore *metrics.MetricsStore, logger *log.Logger) []AppTelemetry {
 	allStacks := stackMgr.GetStacks()
 
@@ -35,11 +39,27 @@ func buildAppTelemetrySection(stackMgr *stacks.Manager, metricsStore *metrics.Me
 		}
 	}
 
-	// 3. Scan logs
+	// 3. Include controller container in log scan
+	containerNames = append(containerNames, controllerContainerName)
+
+	// 4. Scan logs (includes controller)
 	logs := metrics.ScanContainerLogs(containerNames, 15*time.Minute, logger)
 
-	// 4. Build per-app telemetry
-	return buildAppTelemetry(allStacks, telemetry, logs)
+	// 5. Build per-app telemetry (stacks only)
+	result := buildAppTelemetry(allStacks, telemetry, logs)
+
+	// 6. Append controller telemetry entry
+	if ctrl := buildControllerTelemetry(telemetry, logs); ctrl != nil {
+		result = append(result, *ctrl)
+		sort.Slice(result, func(i, j int) bool {
+			return result[i].AppName < result[j].AppName
+		})
+	}
+
+	if result == nil {
+		result = []AppTelemetry{}
+	}
+	return result
 }
 
 // buildAppTelemetry aggregates container-level telemetry and log data into per-stack AppTelemetry entries.
@@ -118,6 +138,48 @@ func buildAppTelemetry(allStacks []stacks.Stack, telemetry []metrics.ContainerTe
 	return result
 }
 
+// buildControllerTelemetry creates a telemetry entry for the controller container.
+// Returns nil if no metrics or log data is available.
+func buildControllerTelemetry(telemetry []metrics.ContainerTelemetry, logs []metrics.ContainerLogSummary) *AppTelemetry {
+	app := AppTelemetry{
+		AppName:     controllerContainerName,
+		DisplayName: "Felhom Controller",
+		Containers:  []string{controllerContainerName},
+	}
+
+	// Find metrics for the controller container
+	for _, ct := range telemetry {
+		if ct.ContainerName == controllerContainerName {
+			app.MemoryCurrentMB = ct.MemoryCurrentMB
+			app.MemoryAvgMB = ct.MemoryAvgMB
+			app.MemoryPeakMB = ct.MemoryPeakMB
+			app.CPUAvgPercent = ct.CPUAvgPercent
+			break
+		}
+	}
+
+	// Find log scan results for the controller container
+	for _, ls := range logs {
+		if ls.ContainerName == controllerContainerName {
+			app.LogErrors = ls.ErrorCount
+			app.LogWarnings = ls.WarnCount
+			issues := ls.RecentIssues
+			if len(issues) > 10 {
+				issues = issues[:10]
+			}
+			app.Issues = issues
+			break
+		}
+	}
+
+	// Only include if we have at least metrics or log data
+	if app.MemoryCurrentMB == 0 && app.MemoryAvgMB == 0 && app.LogErrors == 0 && app.LogWarnings == 0 {
+		return nil
+	}
+
+	return &app
+}
+
 // isStackRunning returns true if the stack has containers actively running
 // (running, starting, or unhealthy but still up). Stopped, exited, deploying
 // etc. are excluded to avoid sending zero-value telemetry to the hub.