fix: ignore changelog from oxfmt (#232)

* fix(rule): biome -> oxlint

* chore(oxfmt): ignore changelog

Author: ryoppippi

.claude/rules/pnpm-usage.md

@@ -19,8 +19,8 @@ This rule provides guidance on using pnpm in the StackOne SDK.
 
 ## Code Quality
 
-- `pnpm lint` - Run Biome linter
-- `pnpm format` - Format code with Biome
+- `pnpm lint` - Run oxfmt/oxlint/knip linter
+- `pnpm format` - Format code with oxfmt/oxlint/knip
 
 ## Command Execution
 

.oxfmtrc.jsonc

@@ -3,5 +3,5 @@
 	"useTabs": true,
 	"semi": true,
 	"singleQuote": true,
-	"ignorePatterns": [".claude/settings.local.json"],
+	"ignorePatterns": [".claude/settings.local.json", "CHANGELOG.md"],
 }