add a fix for redundant layer merges in effect provide

[tylergibbs1]

summary

Effect.provide already accepts an array of layers, but the language service does not flag a direct Layer.mergeAll call.

this adds a suggestion for both supported effect versions and leaves transformed or precomposed layers alone.

example

Effect.provide(Layer.mergeAll(foo, bar))
// becomes
Effect.provide([foo, bar])

validation

• pnpm codegen
• pnpm lint
• pnpm check
• pnpm test
• pnpm test:v4

closes #734

[changeset-bot]

🦋 Changeset detected

Latest commit: 19f3d37

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	Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[tylergibbs1]

Fixed the v4 CI crash in 79779a6. The diagnostic now uses the TypeScript API helpers/fields (ts.getTokenPosOfNode and node.end) instead of deprecated node instance methods, which are absent in the v4 harness. Validation: pnpm codegen, pnpm lint-fix, pnpm check, pnpm test, and pnpm test:v4 all pass (651 v3 tests and 653 v4 tests).

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 79779a63ef

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 8d1a33f751

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 10f1fc933d

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 280fbc70a2

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".