structure event summary for type-safety and extensibility #2131
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Overhauls the `EventSummary` structure in `workertypes` to provide strongly-typed, structured data for downstream processing. Key changes: - Introduced generic `Change[T]` type and strongly-typed value structs (`BaselineValue`, `BrowserValue`, `FeatureRef`) to replace raw strings in the summary. Note, there is an existing Change struct that we may want to eventually consolidate with this one. - Added `SummaryHighlightType` and `BrowserName` enums for type safety. - Switched `browser_changes` to a map keyed by `BrowserName`. - Add `MaxHighlights` variable and set it to 10,000 to make the Spanner summary the authoritative "hot" data source (as opposed to the non truncated blob in GCS). Note: We only anticipate 2k-3k features total so this is a very high limit. - Updated `FeatureDiffV1SummaryGenerator` to populate these structured fields.
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jrobbins
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Dec 30, 2025
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Overhauls the
EventSummarystructure inworkertypesto provide strongly-typed, structured data for downstream processing.Key changes:
Change[T]type and strongly-typed value structs (BaselineValue,BrowserValue,FeatureRef) to replace raw strings in the summary. Note, there is an existing Change struct that we may want to eventually consolidate with this one.SummaryHighlightTypeandBrowserNameenums for type safety.browser_changesto a map keyed byBrowserName.MaxHighlightsvariable and set it to 10,000 to make the Spanner summary the authoritative "hot" data source (as opposed to the non truncated blob in GCS). Note: We only anticipate 2k-3k features total so this is a very high limit.FeatureDiffV1SummaryGeneratorto populate these structured fields.