test: expand roadmap smoke coverage

[jonathanperis]

Summary

• normalize level TOML line endings and enforce LF for levels/*.toml through .gitattributes plus roadmap-quality drift checks
• expand level prose screen-count parsing to cover compound number words and hundreds
• add tools/check_roadmap_quality.py to guard line endings, overlay snapshot docs, scripted-smoke wiring, and docs workflow path filters
• add docs/wiki/overlay-snapshots.md and wire it into the docs navigation
• add tools/run_scripted_smoke.py, make scripted-smoke, and Linux CI coverage for multi-seed level/editor smoke scenarios

Verification

• make validate-levels && make test CC=clang
• make smoke CC=clang SMOKE_FRAMES=5 SMOKE_SEED=1
• make scripted-smoke CC=clang SMOKE_FRAMES=5 SMOKE_SEEDS="1 7 23"
• make docs-drift
• docs bun run lint
• docs bun run build
• make web
• make sanitize CC=clang
• make sanitize-smoke CC=clang SMOKE_FRAMES=5 SMOKE_SEED=1
• git diff --check
• diff secret/sink scan
• independent review twice; final review found no blockers

Notes

• levels/02_lugio_02.toml is intentionally noisy in the diff because it was normalized from CRLF to LF; content is otherwise unchanged from the prior prose fix.

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📥 Commits

Reviewing files that changed from the base of the PR and between 15d70fb and d630ab7.

📒 Files selected for processing (15)

• .gitattributes
• .github/workflows/build.yml
• .github/workflows/docs.yml
• AGENTS.md
• CLAUDE.md
• Makefile
• docs/src/lib/docsSidebar.ts
• docs/src/pages/docs/[...slug].astro
• docs/wiki/build-system.md
• docs/wiki/index.md
• docs/wiki/overlay-snapshots.md
• levels/02_lugio_02.toml
• tools/check_docs_drift.py
• tools/check_roadmap_quality.py
• tools/run_scripted_smoke.py

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch test/roadmap-smoke-snapshots

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