feat: add hint about astro add --yes flag

[ascorbic]

Changes

Coding agents can get confused by interactive prompts, so a pattern that is starting to be adopted is to log a hint saying to run the command with --yes to skip prompts. This PR adds that to astro add. It logs a subtle hint the first time askToContinue is run.

Here's what Claude Code thinks:

Testing

Currently investigating if we have any tests for astro add

Docs

[changeset-bot]

🦋 Changeset detected

Latest commit: cd4a9b5

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

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[codspeed-hq]

CodSpeed Performance Report

Merging #14810 will not alter performance

_{Comparing astro-add-yes-hint (cd4a9b5) with main (c29a785)¹}

Summary

✅ 6 untouched

Footnotes

1. No successful run was found on main (f42ff9b) during the generation of this report, so c29a785 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[florian-lefebvre]

Suggested change

	Add hint to use `--yes` flag with `astro add`
	Adds a hint to use the `--yes` flag with `astro add`

[ascorbic]

Gone for just a few weeks and my changeset standards have slipped!