Merge pull request presenton#627 from presenton/fix/chromium-download

refactor: Enhance Chromium export utility functions

Merge pull request presenton#609 from Wvssim/patch-2

fix: truncate long filenames to prevent OSError on Japanese themes

Merge pull request presenton#576 from presenton/feature/add-litellm-o…

…pened-template-gen-vision-supported

feat: add LiteLLM support and enhance model configuration

Merge pull request presenton#575 from presenton/fix-azure-ui

refactor: simplify Azure LLM configuration handling

Merge pull request presenton#562 from presenton/fix/psycopg-database-…

…issues

Fix/psycopg database issues

Enhance validation and error handling in LLM tools

- Updated system prompts to clarify success criteria for deck edits and validation error handling.
- Improved `ChatTools` to return detailed validation errors when `saveSlide` fails due to exceeded limits.
- Introduced `get_schema_validation_errors` utility to provide structured feedback on schema validation issues.
- Refactored LLM call methods to utilize `generate_structured_with_schema_retries` for improved error handling and retries.
- Adjusted speaker note maxLength from 250 to 500 in multiple locations to accommodate longer notes.
- Added tests for schema validation error reporting to ensure robustness.

Merge pull request presenton#549 from presenton/feature/vertex-openai…

…azure

Feature/vertex openaiazure

feat: Implement PDF export functionality with session handling

- Added middleware to handle session cookies for the PDF export route.
- Introduced a new API endpoint for exporting presentation data using session cookies.
- Updated the PdfMakerPage component to accept and utilize the export cookie.
- Enhanced the presentation export logic to include session token extraction from cookies.
- Updated routing configuration to include the new PDF maker path.

chore: update version to 0.7.3-beta and enhance content generation fe…

…atures

- Updated version to 0.7.3-beta with improvements in slide content generation and web search reliability.
- Fixed console window flashing during export tasks on Windows.
- Various minor fixes and stability improvements across the app.

chore: update version to 0.7.3-beta in package-lock.json and fix Imag…

…eMagick download URL for Windows