* feat(llama-cpp): add in-process text inference
* test(llama-cpp): narrow setup provider fixture
* fix(llama-cpp): trim public surface and refresh docs map
* fix(llama-cpp): import Context type in inference test
Delay public GitHub release publication until postpublish verification, dependency evidence upload, proof append, and required plugin publish gates pass.
Also updates release-maintainer instructions so newly publishable plugins are minted/prepublished through an owner-approved path without consuming the next auto-bumped beta version unless that path is the actual release publish.
