F450 STATIC AND PRESENTATION CHECKS
Captured: 2026-08-25 UTC

py_compile=pass
All checks passed!
svg_xml=pass
svg_render=pass
git_diff_check=pass

Scope:
- Python bytecode compilation covered the checker, query-service wiring,
  mechanism oracle, focused tests, and delivery verifier.
- Ruff covered the same five Python files.
- The SVG was parsed as XML, checked for the canonical 1500 x 940 viewBox,
  rendered to a 1500 x 940 PNG with CairoSVG, and visually inspected for
  clipping, overlap, branch direction, and outcome labeling.
- git diff --check found no whitespace errors in tracked changes.