v0.54.0 Release Recap

v0.54.0 is a non-breaking durability release that adds opt-in KV hot-key sampling to contextdb doctor.

What Changed

Area	New in v0.54.0	Why it matters
Doctor KV check	contextdb doctor --kv-key KEY	Lets operators verify expected hot cache keys
Repeated keys	Multiple --kv-key flags	Supports focused sampling for critical namespace cache entries
Refresh candidates	kv_consistency report	Missing keys are reported without mutating the cache
Feature metadata	doctor-kv-consistency	Lets live deployments advertise KV hot-key sampling support

Compatibility

This release adds a read-only doctor check. Existing doctor checks, REST APIs, storage behavior, and cache contents are unchanged.

Operator Flow

CONTEXTDB_DATA_DIR=/var/lib/contextdb \
  contextdb doctor --kv-key context:my-app:active --kv-key context:my-app:summary

The check reports sampled keys, present keys, missing keys, and refresh candidates. It only calls KVStore.Get for configured keys.

Verification

Release gates for this slice:

Gate	Status
go test -count=1 ./...	Passed
npm run docs:build	Passed
git diff --check	Passed