Kujo Skills v0.4.1

Patch release

• Retains the new kujo-ecosystem-launch coordinator introduced in v0.4.0.
• Fixes the Kujo tool-artifact guard for one-commit and shallow release checkouts.
• Adds a regression test for the single-commit release-gate path.

Verification

• 95-skill release-readiness gate passed.
• Clean-checkout installation passed.
• Loop Engineering gates passed.
• ShipCheck gate passed with 14/16 checks and two non-blocking distribution-repository warnings.
• The shallow/single-commit artifact-guard regression test passed.