The shipped headless profile is base + headless (the direct-core front
door), and its installation-owned migration rewrites the old three-bundle
tuple down to that template, so a one-shot run composes no preset roster.
The runner's optional preset composition was compensating in the wrong
direction: it re-added roster reads the shipped profile never satisfies,
and its golden pinned a header field only a roster-bearing deployment
produces. The runner, the headless bundle manifest, and the dsh-run golden
return to the direct shape; skills in a direct run flow through the base
host rows' global layer, which is what the repository-plugin e2e proves.
The roots are an assembly fact (the shipped set beside this app's config,
the user's own under $DSH_HOME) but only `dsh web` patched them in, so the
merged `dsh run` booted the roster with no roots and failed resolving
`standard`. The shared profile boot now owns the patch for every launcher;
the one-shot transcript header consequently records its composing preset,
and master's interrupt_agent tool joins the standard composition's exact
catalog.
