Code review of stateful Renderer and DisplayInterface: all 10 review
criteria pass with no code changes required. Add two deferred items for
WaveshareDisplay NotImplementedError stub (wired in 2-7) and pixel-space
trail staleness on re-provisioning. Mark story done in story file and
sprint-status.yaml.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Implements story 2-6: Renderer class with per-aircraft trail history
(deque capped at TRAIL_MAX_DOTS=5), NullDisplay with DEBUG logging,
WaveshareDisplay stub, and end-to-end pipeline smoke test. All 96
tests pass; ruff check and format clean.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>