Add helper text descriptions to Pydantic model fields for IDE integration

[coderabbitai]

Context

During the review of PR #1741, it was noted that configuration field documentation is currently provided as YAML comments in template files. These could be enhanced by adding descriptions to Pydantic Field definitions, which would surface as helper texts in IDEs through the JSON schema reference.

Proposal

Add Field(..., description="...") annotations to Pydantic model fields in the configuration classes (e.g., LogIngestor, ClpConfig, and other configuration models in components/clp-py-utils/clp_py_utils/clp_config.py). This would enable IDE tooltips and better developer experience when editing configuration files.

References

• PR: feat(clp-package): Add log-ingestor config interface and Docker Compose orchestration. #1741
• Comment: feat(clp-package): Add log-ingestor config interface and Docker Compose orchestration. #1741 (comment)
• Requested by: @junhaoliao