/cleanup

Run qmd cleanup. This performs 4 steps sequentially:

1. Delete all LLM cache entries from the llm_cache table (cached query expansion and reranking results from previous searches) — reports count cleared
2. Remove orphaned vectors (embeddings with no corresponding document reference — vectors for deleted or changed documents) — reports count removed or "No orphaned embeddings to remove"
3. Delete inactive documents (records with active=0, soft-deleted during indexing when files are removed or modified) — reports count removed if > 0
4. Run SQLite VACUUM to reclaim disk space from deleted records — reports "Database vacuumed"

Each step shows a green checkmark on completion. Note that searches will be slower after cleanup until the LLM cache rebuilds through natural query usage.