feat(tooling): Replace ESLint with Biome

Author: octet-stream

.eslintignore

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

.eslintrc.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"
+    }
+  }
+}

.lintstagedrc

@@ -0,0 +1,28 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
+  "linter": {
+    "rules": {
+      "recommended": true
+    }
+  },
+  "formatter": {
+    "indentStyle": "space"
+  },
+  "javascript": {
+    "formatter": {
+      "semicolons": "asNeeded",
+      "bracketSpacing": false,
+      "trailingCommas": "none",
+      "arrowParentheses": "asNeeded"
+    }
+  },
+  "json": {
+    "formatter": {
+      "trailingCommas": "none"
+    }
+  },
+  "files": {
+    "include": ["**/*.ts", "**/*.tsx", "**/*.js"],
+    "ignore": ["node_modules", ".tsimp", "coverage"]
+  }
+}

.lintstagedrc.json

@@ -17,7 +17,7 @@
   ],
   "repository": "octet-stream/slate-to-react",
   "sideEffects": false,
-  "packageManager": "pnpm@8.10.2",
+  "packageManager": "pnpm@9.6.0",
   "engines": {
     "node": ">= 18"
   },
@@ -34,14 +34,14 @@
     }
   },
   "scripts": {
-    "eslint": "eslint src/**/*.ts src/**/*.tsx",
     "test": "cross-env NODE_OPTIONS=\"--no-warnings --import tsx\" ava",
     "coverage": "c8 pnpm test",
     "report": "c8 -r=html pnpm test",
     "ci": "c8 pnpm test && c8 report --reporter=json",
     "build": "del-cli lib && tsup",
-    "prepare": "node -e 'process.exit(+(process.env.CI !== undefined || process.env.NO_HUSKY_HOOKS !== undefined));' && husky install || true",
-    "release": "pnpm build && pnpm changeset publish"
+    "release": "pnpm build && pnpm changeset publish",
+    "prepare": "npx is-in-ci || husky install",
+    "preinstall": "npx only-allow pnpm"
   },
   "pnpm": {
     "updateConfig": {
@@ -51,6 +51,7 @@
     }
   },
   "devDependencies": {
+    "@biomejs/biome": "1.8.3",
     "@changesets/changelog-github": "0.4.8",
     "@changesets/cli": "2.26.2",
     "@octetstream/eslint-config": "7.2.1",