AI chat-completions client - The OpenAI-compatible HTTP client in src/ai.rs — request building, vision image input and validation, timeouts, retries with linear backoff, error handling, the optional request log and reply parsing.
Web control panel - The optional HTTP control panel in src/web.rs and src/web_page.html, enabled by web_port — routes, the custom-header guard on POST, the request/reply bridge to App through AppEvent::Web, the quit flow, the browser page and its security caveats.
WhatsApp client integration - How src/whatsapp.rs wraps whatsapp-rust — session startup, translation of raw events into WaEvent, JID canonicalization, contact names, history sync, message rendering, image download and sending.
