Add operational telemetry with safe diagnostics and passive monitoring

config/telemetry.example.toml

@@ -0,0 +1,12 @@
+[telemetry]
+heartbeat_seconds = 5
+heartbeat_stale_seconds = 30
+snapshot_interval_seconds = 1
+progress_warning_seconds = 300
+inventory_interval_seconds = 60
+inventory_stale_seconds = 180
+log_max_bytes = 5242880
+log_backups = 5
+max_cases = 1000
+max_frames = 40
+max_snapshot_bytes = 4194304