Fix: Enhance copy feedback & add mobile close button

feat: Add new 'Ana de Armas' prompt and image, and remove deployment documentation files.

Feat: Set Nano Banana as default model & show 10 tag suggestions

Fix: Delay env var check to avoid Docker build errors

Fix: Syntax error in tag colors

Feat: Add more tags (street, japanese, tech, scifi, etc.)

Feat: Add AI models config and convert to dropdown

Security: Remove default credentials, enforce env vars

Security: Enforce env vars in production, warn in dev

Fix: Sort admin dashboard by updatedAt

Debug: Add logging to verify sort order

Feat: Sort by updatedAt (latest modified first)

Fix: Preserve createdAt on update & show updatedAt in list

Fix: Await params in image proxy (Next.js 15+ compatibility)

Fix: Force upload preview to use API proxy for images