Add Prettier and ESLint configuration files, update package dependencies, and set up CI workflow

- Introduced `.prettierrc` and `.prettierignore` for consistent code formatting.
- Added `eslint.config.js` for TypeScript linting with custom rules.
- Updated `package.json` and `package-lock.json` to include new dependencies for ESLint and Prettier.
- Created a CI workflow in `.github/workflows/ci.yml` to automate linting, formatting checks, testing, and building.
- Enhanced scripts in `package.json` for testing and formatting tasks.

Author: MiguelMedeiros

.github/workflows/ci.yml

@@ -0,0 +1,37 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  ci:
+    name: Lint, Format, Test & Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Check formatting
+        run: npm run format:check
+
+      - name: Run tests
+        run: npm test
+
+      - name: Build
+        run: npm run build

.prettierignore

@@ -0,0 +1,2 @@
+dist
+node_modules

.prettierrc

@@ -0,0 +1,7 @@
+{
+  "semi": true,
+  "singleQuote": false,
+  "trailingComma": "es5",
+  "printWidth": 100,
+  "tabWidth": 2
+}

README.md

@@ -70,6 +70,7 @@ This runs Vite in watch mode, rebuilding on file changes.
 ## Configuration
 
 Default relays:
+
 - `https://pkarr.pubky.app`
 - `https://pkarr.pubky.org`
 

eslint.config.js

@@ -0,0 +1,18 @@
+import eslint from "@eslint/js";
+import tseslint from "typescript-eslint";
+
+export default tseslint.config(
+  eslint.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    ignores: ["dist/**", "node_modules/**", "scripts/**", "update-locales.js"],
+  },
+  {
+    rules: {
+      "@typescript-eslint/no-unused-vars": [
+        "error",
+        { argsIgnorePattern: "^_", varsIgnorePattern: "^_" },
+      ],
+    },
+  }
+);