Version 0.3.0

feat: implement video and image processing pipeline with job management and cancellation

• Added image_pipeline.rs for handling image operations such as compression, conversion, and upscaling.
• Introduced ImageJobLimiter for managing concurrent image jobs.
• Implemented progress tracking and cancellation tokens for image jobs.
• Created functions for emitting progress updates and managing cancellation tokens.

feat: add lifecycle management for database items

• Created lifecycle.rs to handle deletion of images and videos from the database.
• Implemented functions to delete items while managing file references and reporting.
• Added support for deleting generated outputs and handling orphaned files.

feat: introduce query helpers for safe parameterized SQL queries

• Added query.rs with utility functions for escaping user input and building SQL clauses.
• Implemented functions for handling LIKE queries and validating sort directions.

feat: develop thumbnail caching system

• Created thumbnails.rs for managing thumbnail cache based on content hash.
• Implemented functions for generating cache keys and checking existing thumbnails.

feat: create database viewer panel in React

• Added db-viewer-panel.tsx for displaying database tables and rows.
• Implemented table selection, pagination, and row loading with error handling.
• Integrated UI components for database interaction and visualization.