litellm-dedup.sh: removes duplicate model DB entries (idempotent, supports
--dry-run). Root cause of duplicates was litellm-init running multiple times
before the DB was populated, causing all entries to be inserted concurrently.
litellm-health-check.sh: runs every 6 hours via systemd user timer; checks
liveness (auto-restarts container if unresponsive) and duplicate entries
(auto-dedups when DEDUP=1). Logs to litellm-maintenance.log.
Systemd units: litellm-health-check.{service,timer} installed under
~/.config/systemd/user/.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>