- Updated DocReaderServicer to pass metadata in responses.
- Modified PipelineParser to accumulate and merge metadata from all parsers.
- Enhanced StdWebParser to extract and log the title from web page content.
- Implemented logic in knowledge service to update knowledge title based on extracted metadata.
- Add docstrings and inline comments for key functions and complex logic
- Unify comment style, eliminate magic numbers and ambiguous variable names
- No functional changes, only improve maintainability
wizardchen