Initial commit: KidsAI Explorer with complete functionality

- Complete KidsAI Explorer application
- Multi-language support (English/German)
- AI-powered educational guidance using OpenAI
- Interactive chat interface for children
- Proper placeholder translation fixes
- Mobile-responsive design
- Educational framework for critical thinking

manifest.json

@@ -0,0 +1,31 @@
+{
+  "name": "KidsAI Explorer",
+  "short_name": "KidsAI",
+  "description": "A kid-friendly AI frontend that encourages critical thinking and self-discovery",
+  "start_url": "/kidsai/",
+  "display": "standalone",
+  "background_color": "#667eea",
+  "theme_color": "#667eea",
+  "orientation": "portrait-primary",
+  "icons": [
+    {
+      "src": "./favicon-16x16.png",
+      "sizes": "16x16",
+      "type": "image/png"
+    },
+    {
+      "src": "./favicon-32x32.png",
+      "sizes": "32x32",
+      "type": "image/png"
+    },
+    {
+      "src": "./apple-touch-icon.png",
+      "sizes": "180x180",
+      "type": "image/png",
+      "purpose": "any maskable"
+    }
+  ],
+  "categories": ["education", "kids", "learning"],
+  "lang": "en",
+  "scope": "/kidsai/"
+}