[FE Chore] Disable new behavior behind a flag

[ardaerzin]

Summary

disabled new navigation behavior

Testing

Verified locally

check evaluator behavior [create / navigate]

Checklist

• I have included a video or screen recording for UI changes, or marked Demo as N/A
• Relevant tests pass locally
• Relevant linting and formatting pass locally
• I have signed the CLA, or I will sign it when the bot prompts me

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• Contributing guide
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Project	Deployment	Actions	Updated (UTC)
agenta-documentation	Ready	Preview, Comment	May 21, 2026 7:49am

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📝 Walkthrough

Walkthrough

This PR introduces EVALUATOR_FULL_PAGE_NAV_ENABLED, a feature flag currently disabled, to gate evaluator full-page playground navigation. Four components import and consistently apply this flag to control row-click navigation, URL routing behavior, sidebar switcher visibility, and post-create navigation paths.

Changes

Evaluator Full-Page Navigation Feature Flag

Layer / File(s)	Summary
Feature flag definition and export web/oss/src/state/workflow/flags.ts, web/oss/src/state/workflow/index.ts	EVALUATOR_FULL_PAGE_NAV_ENABLED is defined as false with documentation describing its scope across four navigation touchpoints, then re-exported through the workflow state module.
Evaluator navigation components gating web/oss/src/components/Evaluators/index.tsx, web/oss/src/components/PlaygroundRouter/index.tsx, web/oss/src/components/Sidebar/components/WorkflowEntityCard.tsx, web/oss/src/components/WorkflowRevisionDrawerWrapper/index.tsx	Row-click navigation, playground routing guard, sidebar evaluator switcher visibility, and post-create navigation all import and apply the flag to gate their full-page navigation logic. When disabled, navigation falls back to drawer-based or existing flow behavior.

🎯 2 (Simple) | ⏱️ ~8 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly describes the main change: introducing a feature flag to disable new navigation behavior across evaluator-related components.
Description check	✅ Passed	The description is related to the changeset, mentioning that new navigation behavior was disabled and that evaluator behavior was tested locally.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fe-chore/disable-app-workflow-pages-for-evaluators

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