Follow-up: DEED userscript submission profile #102

Deferred until after the TOML workflow and the Dhall follow-up. Explore an estate-aligned DEED submission profile without silently replacing the TOML contract. Resolve vocabulary/head and filename dispatch with the standards project, unknown extensions, source spans, and a lossless typed parser and profile validator. The pinned standards linter used in our local exploration checks grammar rather than submission semantics; at that revision its JSON AST drops UUID payloads and includes a following character in boolean tokens. Recheck upstream before implementation. This issue does not authorize DEED implementation in the current work.