Bug fixes and performance improvements

New: Local AI Setup Wizard - Guided 4-step setup flow — Discover local AI servers on your network, select a model, test the connection, and save configuration — all from within the app. - Network auto-discovery — Automatically scans your local network for running AI model instances using Bonjour/mDNS. - Launch tip popup — When a local AI provider is selected, a helpful tip appears on app launch with quick setup steps and a link to the full guide. Users can enable/disable this from the popup. - Full setup guide on website — New https://appshots.netlify.app/ollama-setup.html page with detailed instructions, model recommendations, and troubleshooting tips. Linked from the app and website navigation. Improvements - AI Tools layout fix — AI Tools grid in the inspector panel now uses a single-column vertical layout on iPhone/iPad, fixing the broken narrow 2-column display. - Inspector panel scroll fix — Removed extra ScrollView wrapping around InspectorPanelView in the editor, fixing clipping and layout issues on compact screens. - Generated Text sheet — Bottom sheet now supports medium and large detents so all buttons (including "Add as New Layers") are fully visible