Emit repository-root marketplaces for committed GitHub artifacts

[ScriptedAlchemy]

Agent Bundle currently emits native marketplaces only inside the artifact, so a source repository needs a handwritten root manifest or a custom rewrite to install its committed plugin from GitHub.

Add output.repositoryMarketplace: true to generate the selected hosts' root marketplaces from the same validated adapter plans, pointing at the artifact output. Generated root files are excluded from source identity, path checks reject output overlap and symlink destinations, and evaluation/development staging does not rewrite repository files. Includes English/Chinese documentation and regression coverage for repeat builds, output relocation, host source formats, and evaluation isolation.

Validation on a branch containing current origin/main:

• pnpm build, pnpm typecheck, pnpm lint, and pnpm docs:site:build passed.
• pnpm test:unit: 4,483 passed, six skipped. Corrected one pre-existing doctor test to include the already-existing read-only marketplace inventory query.
• pnpm test:integration:run: 1,183 passed, four skipped; final API/eval rerun: 53 passed.
• AGENT_BUNDLE_PACKAGE_PREBUILT=1 AGENT_BUNDLE_WORKBENCH_PREBUILT=1 pnpm exec rstest --config rstest.packed.config.ts packages/agent-bundle/tests/packed-install-bin.test.ts: two passed, including root marketplace emission from the installed CLI and source-deleted installer execution.
• Independent review cleared the final changes after regressions covered ancestor aliases, terminal artifact symlinks, and evaluation isolation.
• GitHub Actions published and verified the preview. plugin-library#17 consumes it; its full check and source-free committed-artifact install tests passed.

[changeset-bot]

🦋 Changeset detected

Latest commit: e5bdc7d

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
agent-bundle	Patch
create-agent-bundle	Patch

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[pkg-pr-new]

npm i https://pkg.pr.new/ScriptedAlchemy/agent-bundle@827

npm i https://pkg.pr.new/ScriptedAlchemy/agent-bundle/create-agent-bundle@827

npm i https://pkg.pr.new/ScriptedAlchemy/agent-bundle/rsc-markdown-stream@827

npm i https://pkg.pr.new/ScriptedAlchemy/agent-bundle/@agent-bundle/runtime@827

commit: e5bdc7d

[chatgpt-codex-connector]

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-18T22:35:19.571746Z	e5bdc7d	Draft marked ready

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[chatgpt-codex-connector]

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Reviewed commit: e5bdc7d25e

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