Add eslint and autofix script

.husky/pre-commit

@@ -0,0 +1 @@
+pnpm lint-staged

.nvmrc

@@ -1 +1 @@
-v23.6.0
+v24

eslint.config.js

@@ -0,0 +1,53 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+import { includeIgnoreFile } from '@eslint/config-helpers'
+import js from '@eslint/js'
+import stylistic from '@stylistic/eslint-plugin'
+import simpleImportSort from 'eslint-plugin-simple-import-sort'
+import globals from 'globals'
+import tseslint from 'typescript-eslint'
+
+const __filename = fileURLToPath(import.meta.url)
+const __dirname = path.dirname(__filename)
+const gitignorePath = path.resolve(__dirname, '.gitignore')
+
+export default tseslint.config(
+  includeIgnoreFile(gitignorePath),
+  { ignores: ['dist/', 'node_modules/'] },
+
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+
+  {
+    languageOptions: {
+      globals: globals.node,
+    },
+    plugins: {
+      '@stylistic': stylistic,
+      'simple-import-sort': simpleImportSort,
+    },
+    rules: {
+      // Formatting
+      '@stylistic/semi': ['error', 'never'],
+      '@stylistic/quotes': ['error', 'single', { avoidEscape: true }],
+      '@stylistic/comma-dangle': ['error', 'always-multiline'],
+      '@stylistic/indent': ['error', 2],
+      '@stylistic/brace-style': ['error', '1tbs'],
+      '@stylistic/operator-linebreak': ['error', 'before'],
+
+      // Linting
+      curly: 'error',
+      'no-unused-vars': 'off',
+      '@typescript-eslint/no-unused-vars': 'error',
+      'no-console': 'off',
+      'simple-import-sort/imports': 'error',
+      'simple-import-sort/exports': 'off',
+
+      // Relax some defaults
+      '@typescript-eslint/no-require-imports': 'off',
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/no-empty-object-type': 'off',
+    },
+  },
+)

package.json

@@ -19,7 +19,10 @@
     "dev": "tsc --watch",
     "test": "vitest",
     "test:ui": "vitest --ui",
-    "typecheck": "tsc --noEmit"
+    "typecheck": "tsc --noEmit",
+    "lint": "eslint src",
+    "lint:fix": "eslint src --fix",
+    "prepare": "husky"
   },
   "keywords": [
     "kitops",
@@ -40,15 +43,27 @@
     "url": "https://github.com/kitops-ml/kitops-ts/issues"
   },
   "devDependencies": {
+"@eslint/config-helpers": "^0.6.0",
+    "@eslint/js": "^10.0.1",
+    "@stylistic/eslint-plugin": "^5.10.0",
     "@types/node": "^25.0.8",
     "@vitest/ui": "^4.0.17",
+    "eslint": "^10.3.0",
+    "eslint-plugin-simple-import-sort": "^13.0.0",
+    "globals": "^17.6.0",
+    "husky": "^9.1.7",
+    "lint-staged": "^17.0.3",
     "typescript": "^5.9.3",
+    "typescript-eslint": "^8.59.2",
     "vitest": "^4.0.17"
   },
   "packageManager": "pnpm@10.30.3",
   "engines": {
     "node": ">=23.0.0"
   },
+  "lint-staged": {
+    "src/**/*.ts": "eslint --fix"
+  },
   "dependencies": {
     "yaml": "^2.8.2"
   }