F1 + F2 follow-ups: fail-closed demo mode, computed cost fallback, first tests, CI#2

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sgharlow merged 3 commits into

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followups/f1-f2-ci

Jul 18, 2026

Commits on Jul 18, 2026

F1+F2 follow-ups from PR #1 review, first tests, CI
sgharlow
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docker: node 18 -> 20 base (repaired dep tree requires >=20; octokit v14 EBADENGINE)
sgharlow
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docker: multi-stage build — the single-stage image installed --omit=dev then ran tsc (a devDependency); it could never build. Build stage compiles, runtime ships prod deps + dist
sgharlow
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