Gemini chatbot integration files added/updated:

1) app/Http/Controllers/Frontend/GeminiChatController.php
2) resources/views/frontend/chatbot.blade.php
3) resources/views/frontend/layouts/header.blade.php
4) routes/web.php
5) config/services.php
6) .env.example

Required .env values:
GEMINI_API_KEY=your_google_gemini_api_key
GEMINI_MODEL=gemini-2.0-flash

After upload run:
php artisan optimize:clear

New URLs:
GET  /ai-chat
POST /ai-chat/send

Menu item added:
AI Chat

Show Product button redirects to homepage.