Improve DX, create CI/CD pipeline

.github/workflows/code-check.yml

@@ -0,0 +1,16 @@
+name: Code check
+
+on:
+  pull_request:
+    branches: ["*"]
+
+jobs:
+  quality:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Biome
+        uses: biomejs/setup-biome@v2
+      - name: Run Biome
+        run: biome ci --reporter=github .

.husky/pre-commit

@@ -2,4 +2,3 @@
 . "$(dirname "$0")/_/husky.sh"
 
 npx lint-staged
-npm run type-check

biome.json

@@ -0,0 +1,88 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
+  "formatter": {
+    "enabled": true,
+    "formatWithErrors": false,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineEnding": "lf",
+    "lineWidth": 85,
+    "attributePosition": "auto"
+  },
+  "files": {
+    "include": ["src", "cypress"],
+    "ignore": ["node_modules", ".next", "public", ".out"]
+  },
+  "organizeImports": { "enabled": true },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": false,
+      "a11y": { "useValidAnchor": "warn" },
+      "complexity": {
+        "noBannedTypes": "error",
+        "noUselessConstructor": "error",
+        "noUselessTypeConstraint": "error",
+        "useLiteralKeys": "error"
+      },
+      "correctness": {
+        "noInvalidUseBeforeDeclaration": "off",
+        "noPrecisionLoss": "error",
+        "noUnusedVariables": "off",
+        "useArrayLiterals": "off",
+        "noConstAssign": "off",
+        "noGlobalObjectCalls": "off",
+        "noInvalidConstructorSuper": "off",
+        "noNewSymbol": "off",
+        "noSetterReturn": "off",
+        "noUndeclaredVariables": "off",
+        "noUnreachable": "off",
+        "noUnreachableSuper": "off"
+      },
+      "style": {
+        "noInferrableTypes": "error",
+        "noNamespace": "error",
+        "noNonNullAssertion": "warn",
+        "useAsConstAssertion": "error",
+        "useBlockStatements": "off",
+        "useDefaultParameterLast": "error",
+        "noArguments": "error",
+        "noVar": "error",
+        "useConst": "error"
+      },
+      "suspicious": {
+        "noDuplicateClassMembers": "error",
+        "noEmptyBlockStatements": "warn",
+        "noExplicitAny": "off",
+        "noExtraNonNullAssertion": "error",
+        "noMisleadingInstantiator": "error",
+        "noRedeclare": "error",
+        "useAwait": "off",
+        "useNamespaceKeyword": "error",
+        "noDuplicateObjectKeys": "off",
+        "noDuplicateParameters": "off",
+        "noFunctionAssign": "off",
+        "noImportAssign": "off",
+        "noUnsafeNegation": "off",
+        "useGetterReturn": "off",
+        "useValidTypeof": "off"
+      },
+      "nursery": {
+        "useSortedClasses": "info"
+      }
+    }
+  },
+  "javascript": {
+    "formatter": {
+      "jsxQuoteStyle": "double",
+      "quoteProperties": "asNeeded",
+      "trailingCommas": "es5",
+      "semicolons": "asNeeded",
+      "arrowParentheses": "always",
+      "bracketSpacing": true,
+      "bracketSameLine": false,
+      "quoteStyle": "double",
+      "attributePosition": "auto"
+    }
+  }
+}

cypress.config.ts

@@ -1,6 +1,6 @@
+import fs from "fs"
 // eslint-disable-next-line import/no-extraneous-dependencies
 import { defineConfig } from "cypress"
-import fs from "fs"
 
 export default defineConfig({
   e2e: {

cypress/support/commands.ts

@@ -22,7 +22,7 @@ Cypress.Commands.add("clearIndexedDB", () => {
   indexedDB.deleteDatabase("guild.xyz")
 })
 
-// eslint-disable-next-line @typescript-eslint/no-namespace
+// biome-ignore lint/style/noNamespace: <explanation>
 declare namespace Cypress {
   interface Chainable {
     getByDataTest(selector: string): Chainable<JQuery<HTMLElement>>

lint-staged.config.mjs

@@ -0,0 +1,6 @@
+const config = {
+  "*.{mjs,js,jsx,ts,tsx}": ["biome check --write"],
+  "*.json": ["biome format --write"],
+}
+
+export default config