feat(linter): add options.reportUnusedDisableDirectives to config file

[wagenet]

See #15972.

Summary

• Adds options.reportUnusedDisableDirectives to .oxlintrc.json, following the same pattern as typeAware (feat(linter): introduce typeAware as config options #19614) and typeCheck (feat(linter): introduce typeCheck config option #19764)
• Root-config-only — nested configs are rejected with a clear diagnostic error
• CLI --report-unused-disable-directives / --report-unused-disable-directives-severity take precedence over the config file value when both are set
• Schema (npm/oxlint/configuration_schema.json), TypeScript types (config.generated.ts), and website snapshots regenerated

Test plan

• Unit tests in oxlintrc.rs: deserialization, is_empty, merge
• Unit tests in config_store.rs: accessor returns value / None by default
• Unit tests in config_loader.rs: nested config rejection
• Integration tests in config_builder.rs: extends inheritance and override precedence
• cargo test -p oxc_linter && cargo test -p oxlint

Note on AI usage

This PR was implemented with Claude Code assistance and has been reviewed and tested by the contributor.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Adds a new root-only .oxlintrc.json option to configure reporting of unused disable directives, aligning CLI flags with config-file driven behavior and regenerating the public schema/type artifacts.

Changes:

• Introduces options.reportUnusedDisableDirectives (Allow/Warn/Deny) in Rust config types, schema, and generated TS types/docs.
• Enforces “root-config-only” by rejecting nested configs that set the option with a dedicated diagnostic.
• Wires config into the CLI runner so CLI flags take precedence over config values.

Reviewed changes

Copilot reviewed 12 out of 12 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
tasks/website_linter/src/snapshots/schema_markdown.snap	Updates rendered schema docs snapshot to include the new option.
tasks/website_linter/src/snapshots/schema_json.snap	Updates rendered schema JSON snapshot to include the new option.
npm/oxlint/configuration_schema.json	Adds schema property for options.reportUnusedDisableDirectives.
crates/oxc_linter/src/config/oxlintrc.rs	Adds the option to OxlintOptions, supports merge/is_empty, and adds unit tests for deserialization/merge.
crates/oxc_linter/src/config/config_store.rs	Adds a ConfigStore accessor for the new option plus unit tests.
crates/oxc_linter/src/config/config_builder.rs	Adds a ConfigStoreBuilder accessor and tests for extends/override behavior.
crates/oxc_linter/fixtures/extends_config/options/report_unused_disable_directives_warn.json	New fixture for extends testing (warn).
crates/oxc_linter/fixtures/extends_config/options/report_unused_disable_directives_error.json	New fixture for extends testing (error).
crates/oxc_linter/fixtures/extends_config/options/report_unused_disable_directives_allow.json	New fixture for extends testing (allow/off).
apps/oxlint/src/lint.rs	Uses config value as fallback when CLI flags aren’t set (CLI takes precedence).
apps/oxlint/src/config_loader.rs	Rejects nested configs that set options.reportUnusedDisableDirectives, with tests + diagnostic helper.
apps/oxlint/src-js/package/config.generated.ts	Regenerates TS config types to include reportUnusedDisableDirectives.

[codspeed-hq]

Merging this PR will not alter performance

✅ 4 untouched benchmarks
⏩ 52 skipped benchmarks¹

---

_{Comparing wagenet:unused-disables-flag (3ad58c1) with main (6c0e0b5)²}

Footnotes

1. 52 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. No successful run was found on main (6ea49a0) during the generation of this report, so 6c0e0b5 was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

[Mister-Hope]

I see the typecheck option was added in the latest version, which was released minutes ago.

When can this option be supported?

[camc314]

@Mister-Hope please bear with me - this was only opened on Friday.

[camc314]

Thank you!