fix(cli): surface keyboard controls on add-on multiselect prompt

[tannerlinsley]

Summary

Users reported not realizing the add-on selector during tanstack create is a checkbox list (Space toggles) that needs Enter to confirm. The existing keyboard hint was shown only once per session and could appear before single-select prompts where it didn't apply.

• Show the "Keyboard Shortcuts" note immediately above every multiselect prompt (no longer once-only, no longer before single-selects).
• Append (Space to toggle, Enter to confirm) directly to the multiselect message so the cue is inseparable from the prompt itself.

Result:

```
┌ Keyboard Shortcuts
│ Use ↑/↓ to navigate • Space to select/deselect • Enter to confirm
└

◆ What add-ons would you like for your project? (Space to toggle, Enter to confirm)
│ ◯ Clerk
│ ◯ Drizzle
│ ...
```

Test plan

• `vitest run tests/ui-prompts.test.ts` — 14/14 pass
• `tsc --noEmit` — clean
• Pre-commit hook (lint, type, unit, e2e blocking) — passed
• Manual smoke: `tanstack create my-app` and confirm the hint shows above the add-on prompt

Summary by CodeRabbit

• Bug Fixes
  • Keyboard shortcuts help text now displays consistently above every multiselect prompt instead of appearing only once
  • Added inline keyboard hint "(Space to toggle, Enter to confirm)" to multiselect prompts for clearer user guidance
  • Removed redundant keyboard shortcuts display from single-select prompts

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: cf40fb5b-7664-4113-9748-a913899852c6

📥 Commits

Reviewing files that changed from the base of the PR and between c37953e and 6b8e1ad.

📒 Files selected for processing (2)

• .changeset/multiselect-keyboard-hint.md
• packages/cli/src/ui-prompts.ts

---

📝 Walkthrough

Walkthrough

The changes introduce a patch release for the CLI package that enhances the multiselect prompt user experience. The "Keyboard Shortcuts" note is now displayed every time a multiselect prompt appears, and the multiselect message includes inline keyboard instructions specifying "(Space to toggle, Enter to confirm)".

Changes

Cohort / File(s)	Summary
Changeset Documentation .changeset/multiselect-keyboard-hint.md	Patch release metadata documenting the multiselect keyboard shortcut improvements.
CLI Prompt Updates packages/cli/src/ui-prompts.ts	Removes one-time keyboard shortcut tracking boolean; displays keyboard shortcuts note on every multiselect prompt invocation. Multiselect message updated with inline keyboard hint text.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Poem

🐰 A prompt so keen, with hints so bright,
Space and Enter, now in sight!
Keyboard secrets no more hidden,
Every select, with guidance bidden! ✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: fixing the CLI to surface keyboard controls on the multiselect prompt, which is the core objective of improving UX discoverability.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch taren/bold-wilbur-a6f1e3

---

_{Review rate limit: 4/5 reviews remaining, refill in 12 minutes.}

_{Comment @coderabbitai help to get the list of available commands and usage tips.}