chore: update Effect to 4.0 RC - #35
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Feature-ID: 0010-typescript-effect-v4-runtime
Design spec and semantic claim
Refreshes the frozen TypeScript, Bun, and Effect v4 runtime contract to the reviewed Effect 4.0.0-rc.108, @effect/tsgo 0.36.4, and Alchemy beta.72 surfaces without broadening the semantic claim.
User-visible preview
Repository checks and the control-room build use the RC-compatible Effect API and the declared effect-tsgo executable.
Semantic diff
Resolves @effect/tsgo from its package bin contract, updates exact provider/compiler identities, replaces removed Schema.UnknownFromJsonString calls with Schema.fromJsonString(Schema.Unknown), and preserves strict typed boundaries.
Checks run on this exact PR head
nix develop -c bun run check passed project validation, generated-view checks, Oxfmt, Oxlint, TypeScript with Effect diagnostics, commit policy, and 908 tests with 1 skip.
Evidence categories and artifacts
Installed package metadata and declarations establish current API identity; TypeScript diagnostics establish source compatibility; the full repository check supplies executable regression evidence.
Assumptions and unsupported claims
The checks do not prove absence of defects in Effect, TypeScript, Alchemy, Bun, Nix, or provider services. No production deployment was attempted.
Independent reviewer / counterexamples considered
Migration review checked removed Schema constructors, the changed @effect/tsgo bin layout, stale exact version assertions, and duplicate Effect runtime resolutions.
Deviations and next uncertainty
Effect 4 remains an RC and future upgrades still require fresh compiler, provider, and acceptance evidence.
Cleanup
Regenerated the lockfile and derived guidance, removed stale version identities, and retained no compatibility shim.