Fix lint tooling and isolate type-aware config

[richardjoo]

What does this PR do?

Restores the workspace lint/type-aware tooling path by isolating oxlint's type-aware config and avoiding a failing tsgo path in @emdash-cms/registry-client.

Closes #

• Adds a dedicated tsconfig.oxlint.json for type-aware oxlint runs.
• Updates root lint scripts to use that dedicated tsconfig.
• Switches @emdash-cms/registry-client typecheck to tsc --noEmit.
• Simplifies one redundant type annotation in packages/plugin-cli/src/commands/info.ts.
• Removes the crashing @e18e/eslint-plugin JS-plugin integration from oxlint config.

Type of change

• Bug fix
• Feature (requires maintainer-approved Discussion)
• Refactor (no behavior change)
• Translation
• Documentation
• Performance improvement
• Tests
• Chore (dependencies, CI, tooling)

Checklist

• I have read CONTRIBUTING.md
• pnpm typecheck passes
• pnpm lint passes
• pnpm test passes (or targeted tests for my change)
• pnpm format has been run
• I have added/updated tests for my changes (if applicable)
• User-visible strings in the admin UI are wrapped for translation (if applicable). Do not include messages.po changes except in translation PRs — a workflow extracts catalogs on merge to main.
• I have added a changeset (if this PR changes a published package)
• New features link to an approved Discussion: https://github.com/emdash-cms/emdash/discussions/...

AI-generated code disclosure

• This PR includes AI-generated code — model/tool: GPT-5.4 / OpenCode

Screenshots / test output

• pnpm lint passes with 0 errors on this branch.
• pnpm format:check passes.
• pnpm --filter @emdash-cms/registry-client typecheck passes.
• Note: full pnpm typecheck currently hits an unrelated @emdash-cms/auth-atproto import-resolution failure present on top of current upstream and not touched by this PR.

[changeset-bot]

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[Copilot]

Pull request overview

This PR restores/steadies the workspace lint + type-aware tooling by isolating Oxlint’s type-aware TypeScript configuration, removing a crashing JS-plugin integration, and adjusting @emdash-cms/registry-client’s typecheck flow to avoid the failing tsgo path.

Changes:

• Add a dedicated tsconfig.oxlint.json and update root lint scripts to use it for type-aware Oxlint runs.
• Remove @e18e/eslint-plugin integration + rules from .oxlintrc.json.
• Switch @emdash-cms/registry-client’s typecheck to tsc --noEmit and tweak its TS lib settings; simplify a redundant type annotation in plugin CLI.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tsconfig.oxlint.json	Introduces a dedicated TS config for type-aware Oxlint runs with targeted excludes.
package.json	Points lint/lint:json/lint:fix at the dedicated oxlint tsconfig.
.oxlintrc.json	Removes the crashing jsPlugins integration and associated e18e/* rule configuration.
packages/registry-client/package.json	Changes typecheck to use tsc --noEmit instead of tsgo.
packages/registry-client/tsconfig.json	Drops esnext.typedarrays from lib.
packages/plugin-cli/src/commands/info.ts	Removes a redundant type annotation (keeps inferred type).

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[richardjoo]

After removing the jsPlugins integration from .oxlintrc.json, @e18e/eslint-plugin was no longer used anywhere in the repo.

I removed it from package.json and updated the lockfile so the branch no longer installs an unused dependency.

[github-actions]

Overlapping PRs

This PR modifies files that are also changed by other open PRs:

• Add plugin-defined MCP tools #988 (3 shared files)

This may cause merge conflicts or duplicated work. A maintainer will coordinate.

[ascorbic]

Can you explain what this was fixing? I wasn't aware of it failing.

[richardjoo]

Can you explain what this was fixing? I wasn't aware of it failing.

This wasn't me fixing an already-red main/CI failure so much as cleaning up a tooling path I tripped over locally while working on lint setup.

The concrete break I could point to was the oxlint config still referencing @e18e/eslint-plugin via jsPlugins after removing that dependency. In that state, type-aware oxlint crashed immediately with:
Failed to parse oxlint configuration file.
Failed to load JS plugin: @e18e/eslint-plugin
Cannot find module '@e18e/eslint-plugin'

So the .oxlintrc + dependency cleanup part was the real fix.

The tsconfig.oxlint.json part was me making the type-aware oxlint path explicit and narrower instead of pointing it at the generic root TS config, and the registry-client tsc swap was me trying to avoid a tsgo path I hit locally while iterating.

If that reads broader than warranted, I'm happy to trim the PR down to just the minimal oxlint/config consistency fix.