v0.2.7

Added

• doctor reports semantic readiness. memkeeper doctor now includes a semantic.models check: ok when the local embed model is present, a warning pointing at pull-models (and naming the resolved model dir) when a semantic-capable build has no models yet, or a note for lexical-only builds. Overall doctor status is unchanged — lexical still works — so it's guidance, not a failure.

Full changelog: https://github.com/teflon07/memkeeper/blob/main/CHANGELOG.md