v3.8.0 — PyPI publish + bundle sync

v3.8.0 — published to PyPI

`pip install -U simplicio-loop` now resolves 3.8.0 → https://pypi.org/project/simplicio-loop/3.8.0/

Changed

• Published to PyPI. Re-synced the shipped bundle (simplicio_loop/_bundle/hooks/simplicio_dashboard.py) so the pip artifact ships the current 10-runtime neon dashboard byte-for-byte (bundle ≡ source, audited by scripts/claims_audit.py).
• Fixed plugin manifest version drift: .claude-plugin/plugin.json was stuck at 3.3.0 while pyproject.toml advanced — both now synced at the release version.
• build/ (setuptools artifacts) is git-ignored.

Full diff: v3.7.0...v3.8.0