feat: move files from the playground dir in the markuplint repo

.eslintrc

@@ -0,0 +1,81 @@
+{
+	"root": true,
+	"extends": [
+		"@markuplint-dev/eslint-config",
+		"plugin:react/recommended",
+		"plugin:react-hooks/recommended",
+		"plugin:testing-library/react"
+	],
+	"plugins": ["react", "react-hooks", "react-refresh", "testing-library", "vitest"],
+	"env": {
+		"browser": true
+	},
+	"parserOptions": {
+		"ecmaFeatures": {
+			"jsx": true
+		}
+	},
+	"settings": {
+		"react": {
+			"version": "detect"
+		},
+		"import/resolver": {
+			"typescript": []
+		}
+	},
+	"rules": {
+		"@typescript-eslint/no-unused-vars": [2, { "argsIgnorePattern": "^_", "ignoreRestSiblings": true }],
+		"@typescript-eslint/prefer-readonly-parameter-types": [
+			1,
+			{
+				"allow": [
+					{ "from": "lib", "name": "URL" },
+					{ "from": "package", "package": "json-schema", "name": "JSONSchema7" },
+					{ "from": "package", "package": "json-schema", "name": "JSONSchema7Definition" }
+				],
+				"checkParameterProperties": false,
+				"ignoreInferredTypes": true
+			}
+		],
+		"react/display-name": 0,
+		"react/prop-types": 0,
+		"react-refresh/only-export-components": "warn"
+	},
+	"globals": {
+		"React": true,
+		"JSX": true
+	},
+	"overrides": [
+		{
+			"files": ["./*.js"],
+			"rules": {
+				"@typescript-eslint/no-var-requires": 0
+			}
+		},
+		{
+			"files": ["./*.mjs"],
+			"rules": {
+				"import/no-named-as-default-member": 0
+			}
+		},
+		{
+			"files": ["./**/*.tsx"],
+			"rules": {
+				"unicorn/filename-case": 0
+			}
+		},
+		{
+			"files": ["./**/*.spec.ts", "./**/*.spec.tsx"],
+			"rules": {
+				"testing-library/prefer-user-event": 2,
+				"testing-library/no-manual-cleanup": 0
+			}
+		},
+		{
+			"files": ["./vitest.config.ts"],
+			"rules": {
+				"import/no-default-export": 0
+			}
+		}
+	]
+}

.gitignore

@@ -0,0 +1,28 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+# Playwright
+/test-results/
+/playwright-report/
+/blob-report/
+/playwright/.cache/

.markuplintrc

@@ -0,0 +1,21 @@
+{
+	"excludeFiles": ["./src/examples/**/*"],
+	"extends": ["markuplint:recommended-react"],
+	"parser": {
+		"\\.tsx$": "@markuplint/jsx-parser"
+	},
+	"specs": {
+		"\\.tsx$": "@markuplint/react-spec"
+	},
+	"rules": {
+		"heading-levels": false
+	},
+	"nodeRules": [
+		{
+			"selector": "option",
+			"rules": {
+				"permitted-contents": false
+			}
+		}
+	]
+}

.prettierrc.mjs

@@ -0,0 +1,15 @@
+import config from '../.prettierrc.mjs';
+
+export default {
+	...config,
+	plugins: ['prettier-plugin-tailwindcss'],
+	overrides: [
+		{
+			files: ['./src/examples/files/**'],
+			options: {
+				tabWidth: 2,
+				useTabs: false,
+			},
+		},
+	],
+};