Add loading states to all agent generate buttons with proper try-catch blocks

Fix 'Open in new tab' to use wireframe HTML directly without extra wrapper

Fix 'Open in new tab' to open in browser instead of downloading

Fix accent color: convert hex to HSL and use user's chosen color in wireframes

Fix 'Open in new tab' using blob URL to avoid popup blocking

UX agent: simplify API calls and add comprehensive testing

UX agent: add detailed logging and intelligent field completion for API responses

Fix 'Open in new tab' functionality with proper HTML structure and debugging

UX agent: add API key test and improved fallback response

UX agent: add fallback validation and debug logging for API response

Accept API key via headers and body; frontends send Authorization and x-openai-key

Deploy Flagship AI Space (Docker, clean)