AI Chatbot App Lovable Prompt

Build an AI chatbot app for [target audience or use case].

**Core Chat Experience:**
- Chat interface with user messages and AI responses
- Conversation sidebar with saved chats
- New chat button
- Rename and delete conversations
- Streaming-style loading state or typing indicator
- Copy response button
- Regenerate response button

**User Controls:**
- System instruction field for the chatbot role
- Tone selector: helpful, concise, expert, friendly, technical
- Model setting placeholder
- Temperature or creativity selector
- Clear chat action with confirmation

**Accounts and Limits:**
- Supabase Auth for sign up and login
- Save conversations per user
- Track message usage per day
- Show remaining free messages
- Upgrade placeholder when limit is reached

**Admin and Safety:**
- Admin dashboard with total users, chats, messages, and flagged prompts
- Basic content warning state for unsupported requests
- Never expose AI API keys in the frontend

**Data Model:**
- users, conversations, messages, usage_events, chatbot_settings, flagged_messages

**Design:**
- Tool-first interface with chat visible immediately
- Sidebar on desktop and drawer navigation on mobile
- Clear empty state with starter prompt examples
- Responsive layout and accessible controls

Use a server-side route or Supabase Edge Function for AI calls. Store secrets only on the server.