feat(observability): report real prefix-cache query/hit counters in /metrics - #953

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1571859588 wants to merge 4 commits into

pegainfer-project:mainfrom

1571859588:feat/observability-prefix-cache-metrics

Commits on Sep 7, 2026

feat(observability): report real prefix-cache query/hit counters in /metrics
1571859588
committed
dc016af
fix(observability): report prefix-cache counters as token-granular per-send deltas
1571859588
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14fe247
feat(observability): attribute externally restored prefix hits separately
1571859588
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4ea90b8

Commits on Sep 8, 2026

test(observability): cover the metadata-only abort and collapse the delta notes
1571859588
committed
9b63cbe