The backend uses cache_tokens=-1 as a sentinel for endpoints that don't
report cache stats (embeddings, vLLM). The activity table correctly
renders these as "-", but the totals widget summed the sentinels
directly, so each such request subtracted 1 from the displayed total.
- clamp cache_tokens with Math.max(0, ...) when reducing
krzychdre
b2fcc2daa1