- Added `/run/streaming-pipeline` endpoint to process data in batches from either a database or CSV file.
- Introduced `BatchResponse` model for structured responses.
- Updated README with new endpoint details, including parameters and example usage.
- Enhanced error handling and logging during batch processing.
- Ensured data preprocessing and NaN handling in analysis functions.
- Added `/load-data` endpoint to load transaction data from either a database or a CSV file.
- Updated `SalaryAnalyticsPipeline` and `DataLoader` to support loading from CSV.
- Implemented data validation and error handling for loading processes.
- Revised README to include new data loading instructions and workflow steps.
- Added checks to ensure data is loaded before running analysis endpoints.