chore: add playground

Author: ota-meshi

playground/eslint.config.mjs

@@ -0,0 +1,12 @@
+import js from '@eslint/js'
+import intlifySvelte from '@intlify/eslint-plugin-svelte'
+export default [
+  js.configs.recommended,
+  ...intlifySvelte.configs.recommended,
+  {
+    files: ['**/*.svelte', '*.svelte'],
+    rules: {
+      '@intlify/svelte/no-raw-text': 'warn'
+    }
+  }
+]

playground/package.json

@@ -0,0 +1,9 @@
+{
+  "type": "module",
+  "devDependencies": {
+    "@eslint/js": "latest",
+    "eslint": "latest",
+    "@intlify/eslint-plugin-svelte": "latest",
+    "svelte-i18n": "^4.0.1"
+  }
+}

playground/src/MyComponent.svelte

@@ -0,0 +1,9 @@
+
+<script>
+  import { t } from 'svelte-i18n'
+</script>
+<!-- ✗ BAD -->
+<p>hello</p>
+
+<!-- ✓ GOOD -->
+<p>{ $t('hello') }</p>