🎯 #1963 Skill Compat-Floor Check

Toggle WARN vs STRICT mode to see how the new check in tests/manifests/test-cc-version-floor.sh behaves on the current skill set.
Mode:
111
Total skills
19
Missing field
89
Below floor
3
At or above

Floor distribution

Simulated test output

Sourced from PR #1967 spec. Implements issue #1963 filed under GH#152 (CC 2.1.148 adoption). Default WARN mode prevents this PR from breaking CI; follow-up adoption-sweep PR brings 89 skills to SoT, then strict mode flips on.