@hackage/shikumi-cache

CacheConfig, defaultCacheConfig, and cachedLLMWith for a shared policy layer across cache backends, including optional TTL-based entry expiry.
Shikumi.Cache.Backend.Effort for best-effort backend error handling and stripMessageTimestamps for canonical cache-key inspection.

Cache keys now include endpoint identity, default/per-call headers, provider compatibility settings, and omit message construction timestamps. This bumps currentKeyVersion to shikumi-cache/v2, invalidating old cache entries and old trace replay keys.
cachedLLM no longer stores in-band provider error responses, and persistent backend lookup/store failures degrade to cache misses or no-ops.
Refreshed the internal shikumi bound for the 0.3 series.

Refreshed the internal shikumi bound for the 0.2 series.
Updated SQLite backend internals to match the record-patterns conventions used across the package set.

Constrained the baikai dependency to the 0.2 series and refreshed internal shikumi bounds.

Initial Hackage release of provider-neutral response caching for shikumi.
Content-addressed cache keys, in-memory and SQLite cache backends, cached LLM interpretation, and response JSON support shared by backend packages.