[SaiFlyBy]

Post-merge update: Owner-only Actions policy 10761 is active. GitHub currently reports that workflows on this fork are paused due to Actions usage. The contributor-approval status described below was the earlier state.

Worktrunk worktrees need a direct way to carry Mission Control's workspace custody, independent verification, and evidence into a scope-at-a-time PR workflow. This adds the v16 template and a bridge that prepares and registers a worktree at the compiled base, reports and settles a scope, and publishes an independently accepted head as a draft PR.

The bridge preserves resource-claim admission and workspace reconciliation. When main advances after acceptance, its handoff creates a successor for reassessment and allows still-valid evidence to be reused; it does not require a local aggregate branch or automatically squash, rebase, merge, or delete worktrees. Publication binds the verified origin destination, retains origin hook and transport semantics, and creates a new branch only when the remote ref is absent. The bounded scope report adapts P-stack's decision-projection idea; source versions, licenses, and the decision not to activate unavailable forge-admission machinery are recorded in INTEGRATION_PROVENANCE.md.

The fork CI no longer uploads test results or coverage to Codecov, runs the inherited Tend workflows, or publishes benchmark results to the upstream bot's gist. GitHub Actions artifacts, source tests, and bridge tests remain. Upstream-owned SignPath and package-publishing jobs were removed; version-tag releases still create GitHub releases and can use Sigstore through packslip. Windows release binaries are unsigned. The standalone release archives do not include Mission Control's Python/template files, so the bridge currently needs a matching source checkout.

The checked-in PR jobs admit same-repository heads and skip unchanged external-head workflows; independently controlled GitHub approval settings are required to enforce this against an external PR that edits its own workflow. The fork's setting currently requires approval only for first-time contributors, so the requested all-external-contributor boundary is not yet enforced. Skipped jobs are not test evidence. The current repository-scoped GitHub Apps list contains neither pre-commit.ci nor Codecov; no app settings were changed.

Validation and limits:

• On ac5805026f5f943c8658073be4c58c8f8a1773dd, eight CI policy tests, 64 own/external/deleted-fork/push/dispatch expression cases using GitHub's expression library, actionlint, 19 template-coherence tests, offline Cargo metadata, and the pinned cargo-dist release plan passed. Tend 0.3.23's normal generator emitted no workflows. The planner generated fork-owned release URLs and no unconfigured Homebrew installer.
• On the same head, hosted Linux, Windows and macOS full source suites, both Linux and Windows bridge jobs, coverage, lint, feature checks, fast checks, docs checks, MSRV and release planning passed. Nightly's macOS full suite also passed on macos-26 with the same test command and setup. Other longer nightly jobs are still running. The inherited pull_request_target Tend review fails because the base workflow requires an unavailable bot token; the candidate removes it after merge.
• The current Rust coverage artifact is retained as a GitHub Actions artifact. This PR changes no Rust source files, so there is no Rust patch-coverage result; that report does not measure the Python integration. On 4ed759cefa331e130e5055b670a5796988877388, 25 bridge tests and 19 template-coherence tests passed locally; the cleanup does not change bridge or Rust source, but does change Cargo repository metadata and CI definitions.
• The handoff-to-closure scenario passed using a previously built wt cbc4b8afb binary. This is not a complete retained-template qualification for the new head. Bridge publication tests use local Git remotes and a simulated forge; they do not exercise a live HTTP proxy or GitHub push. Independent acceptance and the repository-level external-contributor approval setting remain outstanding.