chore(schema): update base event view for incremental re-computation

[llmin]

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license

Summary

(describe what this merge request does)

Implementation highlights

(describe how the merge request does for feature changes, share the RFC link if it has)

Test checklist

• [ ] add new test cases
• [ ] all code changes are covered by unit tests
• [ ] end-to-end tests
  • [ ] deploy web console with CloudFront + S3 + API gateway
  • [ ] deploy web console within VPC
  • [ ] deploy ingestion server
    • [ ] with MSK sink
    • [ ] with KDS sink
    • [ ] with S3 sink
  • [ ] deploy data processing
  • [ ] deploy data modeling
    • [ ] new Redshift Serverless
    • [ ] provisioned Redshift
    • [ ] Athena
  • [ ] deploy with reporting
  • [ ] streaming ingestion
    • [ ] with Redshift Serverless
    • [ ] with provisioned Redshift

Is it a breaking change

• [ ] add parameters without default value in stack
• [ ] introduce new service permission in stack
• [ ] introduce new top level stack module

Miscellaneous

• [ ] introduce new symbol link source file(s) to be shared among infra code, web console frontend, and web console backend