feat(tooling): Replace ESLint with Biome

.lintstagedrc.json

@@ -0,0 +1,6 @@
+{
+  "*.{ts,js,json,jsonc}": [
+    "pnpm biome format --write --no-errors-on-unmatched",
+    "pnpm biome lint --write --no-errors-on-unmatched"
+  ]
+}

.vscode/settings.json

@@ -0,0 +1,30 @@
+{
+  "[typescript]": {
+    "editor.defaultFormatter": "biomejs.biome",
+    "editor.formatOnSave": true,
+    "editor.codeActionsOnSave": {
+      "quickfix.biome": "explicit"
+    }
+  },
+  "[javascript]": {
+    "editor.defaultFormatter": "biomejs.biome",
+    "editor.formatOnSave": true,
+    "editor.codeActionsOnSave": {
+      "quickfix.biome": "explicit"
+    }
+  },
+  "[jsonc]": {
+    "editor.defaultFormatter": "biomejs.biome",
+    "editor.formatOnSave": true,
+    "editor.codeActionsOnSave": {
+      "quickfix.biome": "explicit"
+    }
+  },
+  "[json]": {
+    "editor.defaultFormatter": "biomejs.biome",
+    "editor.formatOnSave": true,
+    "editor.codeActionsOnSave": {
+      "quickfix.biome": "explicit"
+    }
+  }
+}

ava.config.js

@@ -6,7 +6,5 @@ export default {
   extensions: {
     ts: "module"
   },
-  files: [
-    "src/**/*.test.ts"
-  ]
+  files: ["src/**/*.test.ts"]
 }

biome.jsonc

@@ -0,0 +1,41 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
+  "linter": {
+    "rules": {
+      "recommended": true,
+      "complexity": {
+        "noForEach": "off"
+      },
+      "style": {
+        "noParameterAssign": "off",
+        "noArguments": "off"
+      },
+      "suspicious": {
+        "noGlobalIsNan": "off"
+      },
+      "correctness": {
+        "noVoidTypeReturn": "off"
+      }
+    }
+  },
+  "formatter": {
+    "indentStyle": "space"
+  },
+  "javascript": {
+    "formatter": {
+      "semicolons": "asNeeded",
+      "bracketSpacing": false,
+      "trailingCommas": "none",
+      "arrowParentheses": "asNeeded"
+    }
+  },
+  "json": {
+    "formatter": {
+      "trailingCommas": "none"
+    }
+  },
+  "files": {
+    "include": ["**/*.ts", "**/*.js"],
+    "ignore": ["lib", "coverage"]
+  }
+}

package.json

@@ -82,6 +82,7 @@
     "prepare": "npx is-in-ci || husky install"
   },
   "devDependencies": {
+    "@biomejs/biome": "1.8.3",
     "@changesets/changelog-github": "0.5.0",
     "@changesets/cli": "2.27.1",
     "@octetstream/eslint-config": "8.0.2",