…n pages

…errors when API key is missing

…terfaces

…n error UX with auto-refresh hint

…t present (handles reload/direct link)

…roubleshooting for server actions + P2003

… FK errors

- Added user existence check in createPresentation and duplicatePresentation
- If session user doesn't exist in DB, create minimal user row within transaction
- Prevents foreign key constraint violations when user ID missing from DB
- Also adds retry logic for image downloads and media upload URL improvements
- Improves web search toggle model compatibility checks
- Adds TITLE tag handling in slide parser

- Increase Pollinations fetch timeout from 15s to 30s (API can be slow)
- Add User-Agent header to image requests
- Increase retry backoff from 500ms to 1000ms per attempt
- Add graceful error return instead of throwing when all attempts fail
- Improve Tavily search error logging with more context
- Add clear warning message when TAVILY_API_KEY is missing

- Before creating user, check if one exists with the session email
- Handles case where NextAuth created user with different ID than session
- Use existing user's ID when email match found
- Prevents P2003 FK errors caused by ID mismatch
- Apply fix to both createPresentation and duplicatePresentation

- Create /presentation/share/[id] page to handle shared links
- Validate that presentation is public before showing
- Redirect to normal presentation view if valid
- Show error page if presentation is private or doesn't exist
- Fixes 404 error when sharing presentations

Note: PowerPoint export formatting needs improvement (tracked separately)

- Add 15s timeout for fetch requests
- Better User-Agent and headers to avoid blocks
- Extract OpenGraph and meta tags for title/description
- Try multiple content extraction patterns (article, main, etc.)
- Clean HTML more thoroughly (remove nav, footer, scripts)
- Convert headings to markdown format
- Better error messages for common failures (403, 404, timeout)
- Validate extracted content length (min 100 chars)
- Format imported content with structure notes
- Log extraction progress for debugging

…to avoid build error

…treaming response

…ation

- Add conditional import in next.config.js to prevent environment validation during Docker builds
- Fixes build freeze issue where process hangs during 'Creating an optimized production build...'
- Maintains env validation for development while allowing successful Docker builds on EasyPanel

- Implement split-screen layout with features showcase on desktop
- Add modern gradient background with subtle geometric pattern
- Enhance branding with ALLWEONE logo and app description
- Include feature highlights (AI-powered generation, templates, real-time editing)
- Add trust indicators and professional messaging
- Improve mobile responsiveness and visual hierarchy
- Add loading states and better error handling
- Include demo mode option for exploring features
- Enhance accessibility and visual polish

…dling, URL extraction, and user feedback