Replace manually duplicated variant/size type literals with
VariantProps<typeof buttonVariants> for type safety and
consistency with the Button component.
Add unoptimized prop to image preview to support blob URLs, contain
overflow on preview container, replace div with semantic section
element in DragDropContainer with aria-label, and import shared
image constants.
Break down the monolithic handleAiCreate into focused helpers
(sendAiRequest, persistAiEvents, populateEventForm), add client-side
image file validation before upload, and use toast.promise finally
callback for loading state cleanup.
Replace inline JSON extraction with the shared json-utils module,
extract chat response content parsing into a dedicated helper, make
the AI model configurable via AI_MODEL env var, and improve error
messages for production safety.
Add regex-based data URL validation for images, compute binary size
from base64 for accurate 10MB limit, enforce datetime strings with
offset for start/end fields, and derive CalendarEvent from the AI
response item type to eliminate field duplication.
Move image extensions, MIME types, and size limit into a dedicated
constants module. Extract JSON-from-text parsing into a pure utility
function for reuse across the codebase.
Sort imports alphabetically, convert value imports to type-only where
appropriate, normalize indentation to tabs, and sort exports
alphabetically across UI components, pages, and lib modules.
