Available endpoints:
• POST /api/signup
• POST /api/login
• POST /api/me
• POST /api/logout
• POST /api/logout_all
• POST /api/profile_update
• POST /api/media_upload
• GET /api/media/<id>
• POST /api/send_message
• POST /api/get_messages
• POST /api/list_chats
• POST /api/mark_read
• POST /api/delete_chat
• GET /api/stream?peer_id=123
• POST /api/typing
• POST /api/update_location
• POST /api/get_nearby_users
• POST /api/ai_get
• POST /api/ai_clear
• POST /api/ai/chat
• POST /api/ai/chat/stream
• POST /api/ai_send
• POST /api/places_search
• GET /api/health
• GET /api/version