Bone Flow Editor v1.0.37 Candidate

Scope
- Embedded #022 Runtime/CSS/HTML Class synchronized to formal BoneHoverBorderEffect 1.0.12.
- Removed legacy consumer five-effect/cross contract from embedded consumers.
- Realtime Preview embedded runtime checks required Public APIs instead of dependency patch versions.
- 127.0.0.1 in extension.js is intentional: VS Code extension-owned ephemeral local preview server. It is not a deployment URL and is not changed.

Status
- Static/package QA only. User-side VS Code verification required.
