Update Effect v4 dependencies to beta.104

[mattiamanzati]

Summary

• pin the Effect v4 harness and language-service development dependencies to 4.0.0-beta.104
• update Schema class completions and fixtures for the renamed error constructors
• adapt LayerGraph and the v3-to-v4 migration database to beta.104 API changes
• normalize beta.104 Option type references emitted by the toggle type annotation refactor

Schema API changes

Before:

class MyError extends Schema.ErrorClass<MyError>("MyError")({}) {}
class Tagged extends Schema.TaggedErrorClass<Tagged>()("Tagged", {}) {}

After:

class MyError extends Schema.Error<MyError>("MyError")({}) {}
class Tagged extends Schema.TaggedError<Tagged>()("Tagged", {}) {}

Verification

• pnpm codegen
• pnpm lint-fix
• pnpm check
• pnpm test (649 passed, 2 skipped)
• pnpm test:v4 (651 passed, 3 skipped)

[changeset-bot]

🦋 Changeset detected

Latest commit: 60d0968

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@effect/language-service	Patch

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