improve tracking of VM deletions

README.md

@@ -88,6 +88,8 @@ Snapshots:
 - `settings.daily_snapshot_max_age_months`: retention for daily tables
 - `settings.snapshot_cleanup_cron`: cron expression for cleanup job
 - `settings.reports_dir`: directory to store generated XLSX reports (default: `/var/lib/vctp/reports`)
+- `settings.hourly_snapshot_retry_seconds`: interval for retrying failed hourly snapshots (default: 300 seconds)
+- `settings.hourly_snapshot_max_retries`: maximum retry attempts per vCenter snapshot (default: 3)
 
 Filters/chargeback:
 - `settings.tenants_to_filter`: list of tenant name patterns to exclude
@@ -130,4 +132,4 @@ Run `swag init --exclude "pkg.mod,pkg.build,pkg.tools" -o server/router/docs`
   - Build step installs generators (`templ`, `sqlc`, `swag`), regenerates code/docs, runs project scripts, and produces the `vctp-linux-amd64` binary.
   - RPM step packages via `nfpm` using `vctp.yml`, emits RPMs into `./build/`.
   - Optional SFTP deploy step uploads build artifacts (e.g., `vctp*`) to a remote host.
-  - Cache rebuild step preserves Go caches across runs.
+  - Cache rebuild step preserves Go caches across runs.