- Add MIT license with Austin Godber copyright
- Implement optional OpenSearch feature toggle via EMBEDDINGBUDDY_OPENSEARCH_ENABLED
- Disable OpenSearch by default in production for security
- Add development environment flag to test OpenSearch disable state
- Update about modal to open by default with improved content
- Reorganize text input component: move model selection below text input
- Conditionally show/hide OpenSearch tab and callbacks based on configuration
- Update tooltips to reflect OpenSearch availability status
