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

.env.example

@@ -0,0 +1,12 @@
+# Environment Configuration for KidsAI Explorer
+# Copy this file to .env and add your API tokens for better performance
+
+# Hugging Face API Token (Optional - improves rate limits)
+# Get your free token at: https://huggingface.co/settings/tokens
+# HUGGING_FACE_TOKEN=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
+
+# Server Port (default: 3002)
+# PORT=3002
+
+# Environment Mode
+# NODE_ENV=production