feat(validate): accept any value in Boolean parameters

[e54-bot]

Fixes #285. Parent: #283. Decision: ADR-0014 (#284).

Summary

• Canonical validation now accepts any value in a parameter whose primary declared type is Boolean (Boolean or Boolean|Number). Identity, arity, enum-domain, and reference-category checks are unchanged.
• Number|Boolean positions are Number parameters with a Boolean alias and keep their type check; widening them has no evidence (OverPy's First Of wrapping is keyed on the Boolean parameter type).
• Docs: control-flow.md describes the rule; source-attribution/catalog.md records the ADR-0014 / OverPy evidence.

Tests

• New regression: non-Boolean call, literal, and variable accepted in a Boolean parameter; extra arity and an invalid inner call still rejected.
• Existing tests that used a Boolean position to assert rejection now use Teleport's Vector parameter; conformance no longer generates wrong-type cases for Boolean parameters.
• cargo test --workspace and cargo clippy --workspace --all-targets pass.

Not verified

The #283 probe cases depend on opy-rs emitting the reference structure.

[Teakowa]

LGTM