Critical bug fix: Collectors were appending to Vecs instead of replacing them,
causing duplicate entries with each collection cycle.
Fixed by adding .clear() calls before populating:
- Memory collector: tmpfs Vec (was showing 11+ duplicates)
- Disk collector: drives and pools Vecs
- Systemd collector: services Vec
- Network collector: Already correct (assigns new Vec)
This prevents the exponential growth of duplicate entries in the dashboard UI.
Christoffer Martinsson
14618c59c6