fix: stabilize architecture sync and cloud batch tests

[Serhan-Asad]

Summary

• Reconcile architecture metadata with current prompt files and fix stale include/dependency references.
• Harden cloud batch submission against concurrent source tarball collisions and spot preemption retries.
• Preserve 4xx response details for cloud insufficient-credit errors and expose failed cloud-regression command output.

Test plan

• PDD_PATH=/private/tmp/pdd-sync-main-20260519-152000/pdd uv run pdd sync-architecture --dry-run
• PDD_PATH=/private/tmp/pdd-sync-main-20260519-152000/pdd uv run pdd checkup --validate-arch-includes --project-root .
• PDD_PATH=/private/tmp/pdd-sync-main-20260519-152000/pdd uv run --extra dev pytest tests/test_code_generator_main.py::test_full_gen_cloud_insufficient_credits_displays_balance tests/test_fix_main.py::test_fix_main_cloud_insufficient_credits_raises_error tests/test_fix_main.py::test_cloud_fix_errors_insufficient_credits tests/test_bug_main.py::test_bug_main_cloud_insufficient_credits_displays_balance tests/test_crash_main.py::test_crash_main_cloud_insufficient_credits_raises_error -q
• python -m json.tool ci/cloud-batch/job-template.json >/dev/null && python -m json.tool ci/cloud-batch/job-template-standard.json >/dev/null && bash -n ci/cloud-batch/entrypoint.sh && bash -n ci/cloud-batch/submit.sh && bash -n tests/cloud_regression.sh && git diff --check
• uv run --extra dev python -m build
• make cloud-test: 77 passed, 0 failed, 0 errors

[greptile-apps]

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