chore: update claude.md

Author: Miodec

CLAUDE.md

@@ -1,6 +1,8 @@
 Be extremely concise. Sacrifice grammar for concision.
 Frontend is partially migrated from vanilla JS to SolidJS — new components use `.tsx`, legacy code remains vanilla.
 Single test file: `pnpm vitest run path/to/test.ts`
+When running oxc lint, always use `--format agent`.
+For typechecking, use `oxc --type-aware --type-check` instead of `tsc`.
 For styling, use Tailwind CSS, class property, `cn` utility. Do not use classlist. Only colors available are those defined in Tailwind config.
 In legacy code, use `i` tags with FontAwesome classes. In new code, use `Fa` component.
 In plan mode, before writing up a plan, ask clarifying questions if needed. At the end of plan mode, give me a list of unresolved questions to answer, if any. Make them concise.