Allow truncating long activity names

[adhityamamallan]

Summary

Since we currently show the full activity names in the Workflow History view (unlike previous versions of cadence-web), this PR adds changes to allow shortening names for display.

The shortened name is derived by cutting everything off before the last period/slash, which may not always be accurate or complete. Therefore, we have made this behaviour opt-in using the WORKFLOW_HISTORY_SHOULD_SHORTEN_GROUP_LABELS_CONFIG flag.

Misc

• Fix an issue with spacing in the "Export JSON" button

Test plan

Updated unit tests + ran locally.

With the flag disabled:

With the flag enabled:

Export JSON button (before/after):

[Copilot]

Pull Request Overview

Adds optional truncation of long activity names in the Workflow History view behind a config flag, with full names available via tooltip, and tightens up the Export JSON button styling.

• Introduce a new fullName field and wrap labels in a tooltip component when shortening is enabled
• Update the activity-group helper to cut names after the last . or / based on WORKFLOW_HISTORY_SHOULD_SHORTEN_GROUP_LABELS_CONFIG
• Refactor WorkflowHistoryExportJsonButton to avoid passing a boolean to endEnhancer

Reviewed Changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/views/workflow-history/helpers/get-history-group-from-events/get-activity-group-from-events.ts	Add fullName, conditional short/long label logic, import config
src/views/workflow-history/config/workflow-history-should-shorten-group-labels.config.ts	New config flag definition
src/views/workflow-history/workflow-history-group-label/*	New component and types to render label with optional tooltip
src/views/workflow-history/workflow-history-timeline-group/* and compact-event-card/*	Propagate and render fullName via new WorkflowHistoryGroupLabel
src/views/workflow-history/workflow-history-export-json-button/workflow-history-export-json-button.tsx	Refactor conditional endEnhancer prop
+ tests in corresponding __tests__ folders	Updated mocks and new tests for grouping logic

Comments suppressed due to low confidence (2)

src/views/workflow-history/helpers/get-history-group-from-events/tests/get-activity-group-from-events.test.ts:20

• The mock path uses the @/views/... alias but the code imports the config via a relative path (../../config/...). This mismatch prevents Jest from mocking the module. Update the mock to use the same relative import specifier (e.g. jest.mock('../../config/workflow-history-should-shorten-group-labels.config', ...)) so the mock takes effect.

jest.mock('@/views/workflow-history/config/workflow-history-should-shorten-group-labels.config',

src/views/workflow-history/helpers/get-history-group-from-events/get-activity-group-from-events.ts:51

• [nitpick] There are tests for shortened vs. full label, but none checking that fullName is correctly set or omitted. Consider adding a unit test to verify fullName is populated when shortening is enabled and remains undefined when disabled.

if (WORKFLOW_HISTORY_SHOULD_SHORTEN_GROUP_LABELS_CONFIG) {