Add ADR 0044 (Status: Proposed), the single self-hosted reference
deployment composed from pinned sources, and list it in the ADR index.
Correct CLAUDE.md, which described manifest v6; the contracts accept
only manifestVersion 7 (MODULE_MANIFEST_VERSION in
packages/contracts/src/module-manifest.ts).
No code changes.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
