CineThread v0.2.4

End-to-end local Skill handoff validation

• Adds validate-skill-integration to cross-check a metadata-only local Skill adapter against a project workflow.
• Verifies stage ownership, Skill labels, output contracts, evidence semantics, required producers, and action-request routing.
• Rejects high-confidence public leaks such as credential-bearing fields and values, email addresses, and absolute local or network paths without echoing detected values.
• Adds the integrated handoff to the Python 3.10-3.13 CI matrix and verify-examples.

Validated

• 54 unit tests passed.
• Public example verification passed 13 of 13 checks.
• Ordinary package installation, installed CLI commands, compile checks, and dependency checks passed.

Boundary

A passing result still requires manual privacy review. This release does not copy or execute local Skills, render or generate media, inspect artifacts, perform final video QC, or demonstrate community adoption.