create-al-project

1. Invoke `verify-prerelease-altool`. 2. Create the project under `$env:RUNNER_TEMP`, never inside the repository checkout. 3. Write `app.json` with a new GUID, name, publisher, version, target, runtime, and the smallest ID range needed by the report. 4. Add `platform`, `application`, and dependencies only when the scenario needs them. 5. Add only the AL source and analyzer settings required by the reported steps. 6. If symbol references exist, invoke `download-al-symbols`. 7. Compile with `compile-al-app`. Do not launch VS Code or invoke `AL: Go!`.