create-pr: drop the "Next step" PR-body hint

[mattpocock]

Summary

create-pr stops telling the student what to do with their PR. That's the teacher's job, not the CLI's. Patch changeset included. Size: 1 file, -3/+1 lines.

 ✓ Draft PR for <lesson-id>: https://github.com/<owner>/<repo>/pull/32
-
-Next step: ask your agent to rewrite the PR body, e.g.
-  "Read https://github.com/<owner>/<repo>/pull/32 and rewrite its description to explain the change."

The PR URL line and the drafts-unavailable note are unchanged. Nothing else referenced the hint: no tests asserted on it, and it had no helpers to remove.

Evidence

• Before: the output after the PR URL line included the "Next step" hint.
  After: the output ends at the PR URL line. pnpm check, pnpm lint and pnpm test all pass (18 files, 188 tests, including create-pr-e2e, which asserts on result.prUrl).

Merge Danger

Door: two-way

Blast Radius: cosmetic

The only change is CLI output text. Nothing parses it.

🤖 Generated with Claude Code

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/ai-hero-cli@86

commit: 55dcf83