Fixes#20870.
## Summary
The feature request template currently links users to the README
`#contributing` anchor, but that anchor does not exist. This can confuse
users who are trying to understand contribution expectations before
filing a request.
This updates `.github/ISSUE_TEMPLATE/5-feature-request.yml` to point
`Contributing` at `docs/contributing.md`, matching the repository's
existing contribution guidance.
Issue forms should only reference labels that exist in the repository so
new reports receive the intended automatic labels.
This updates the CLI issue form to stop applying the missing `needs
triage` label, and changes the documentation issue form from `docs` to
the existing `documentation` label.
Fixes#21158
Fixes#21270.
The CLI bug report template defined `description` twice for the terminal
emulator field. Because duplicate YAML keys are ambiguous and parsers
generally keep the later value, the form could drop the multiplexer
guidance.
This combines that guidance with the terminal examples under a single
block scalar in `.github/ISSUE_TEMPLATE/3-cli.yml`.
The current bug template uses CLI-specific instructions for getting the
version.
The current feature template doesn't ask the user to provide the Codex
variant (surface) they are using.
This PR addresses these problems.
