Adding bootstrap --test-mode

--test-mode enables resilient bootstrap processing that continues building packages even when individual builds fail, instead of stopping at the first error.

When a package fails to build from source, it attempts to download a pre-built wheel as a fallback, and if both fail, records the failure and continues processing remaining packages.

At the end, it generates JSON reports (test-mode-failures.json and test-mode-summary.json) containing all failure details for automation and CI/CD integration.

Closes #713

Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com>

Author: LalatenduMohanty

.gitignore

@@ -35,3 +35,4 @@ __pycache__/
 /.mypy_cache/
 .skip-coverage
 .claude
+/.beads/