chore(compass-assistant): hide the performance insight entrypoints behind its own feature flag COMPASS-9794

[lerouxb]

COMPASS-9794

Filed this follow-up ticket to not forget about this: COMPASS-9806

[Copilot]

Pull Request Overview

This PR introduces a new feature flag to control the visibility of performance insight entrypoints in the AI Assistant feature. The change allows for granular control over which AI Assistant features are exposed, specifically hiding the performance insights functionality behind its own feature flag.

• Adds a new feature flag enablePerformanceInsightsEntrypoints to control performance insight entrypoints
• Conditionally exposes the tellMoreAboutInsight action based on the new feature flag
• Sets the feature flag to development stage by default

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
packages/compass-preferences-model/src/feature-flags.ts	Adds the new enablePerformanceInsightsEntrypoints feature flag definition
packages/compass-assistant/src/compass-assistant-provider.tsx	Implements conditional logic to hide tellMoreAboutInsight action when feature flag is disabled

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