When the crew cannot finish a green first change, the person is told plainly and offered Land it as it is #11565

Part of #11541. A green one-page pull sat at "builder · green — ready for a look" with nobody looking, then "Changes were asked… Next: builder" with no builder able to run.

Done looks like:

• [ ] Requested changes on a pull start the builder's follow-up ahead of any paused run.
• [ ] When the crew cannot continue (credit spent, no key, a limit), the pull and the app page say so in one sentence and offer two actions: Land it as it is (the preview link beside it) and add a key.
• [ ] Land it as it is lands the green pull and the app's own address serves the change; the same action is reachable through MCP with the same words.
• [ ] A test where credit runs out after a green pull shows the sentence and the button, and pressing it lands the pull. A person runs the production probe from #11541 after release.