#10241 docs(tui): describe manual nightly channel

Summary

• describe cmux-tui-nightly.yml as manual-dispatch only
• keep the package publication behavior documented for each manual dispatch
• add a contract test for the workflow trigger and nightly docs wording

Verification

• commit e33fa20894 adds the failing contract test (red)
• commit 3afd7ce263 updates the comment and docs (green)
• python3 -m unittest tests/test_tui_publish_workflow_security.py
• python3 -m py_compile tests/test_tui_publish_workflow_security.py
• PyYAML BaseLoader trigger check
• actionlint .github/workflows/cmux-tui-nightly.yml

No schedule, workflow dispatch, package publish, or build was run.

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Summary by cubic

Clarifies that the cmux-tui nightly channel is manual-dispatch only and enforces it with a contract test. Previously docs claimed a daily schedule; now docs and workflow comments state manual-only, so nightlies publish only when explicitly dispatched from main.

• .github/workflows/cmux-tui-nightly.yml has only workflow_dispatch and documents “manual-dispatch only.”
• cmux-tui/dist/RELEASING-TUI.md updates “Nightly channel” to manual-only, retaining per-dispatch publish behavior (builds and publishes a fresh run each time).
• tests/test_tui_publish_workflow_security.py asserts the trigger set is {"workflow_dispatch"} and that the docs reflect manual-only.

Summary by CodeRabbit

• Documentation

  • Clarified that TUI package nightlies run only through manual dispatch.
  • Documented that on-demand prereleases may be dispatched from the main branch.

• Tests

  • Added coverage to verify the nightly workflow remains manual-only and does not describe a daily schedule.