Rename `llm_model` → `model` and `llm_provider` → `provider` in stylesheet
properties, accessor methods, and all DOT/doc references. Add
ProviderInferenceTransform that automatically infers provider from the model
catalog, eliminating redundant provider declarations in stylesheets.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Port Kilroy's substack-spec-v01.dot as a full Arc example with:
- Debate planning (Opus + Gemini Flash independent plans)
- Six-stage verify chain (fmt, build, test, browser, artifacts, fidelity)
- Ensemble review with consensus (two providers)
- Postmortem repair loop with replan/toolchain routing
- Full Kilroy prompts adapted for Arc conventions
- Overview SVG with light/dark mode support
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
