Fix message copy action in Command Center

[dmarticus]

Problem

The assistant-message copy action is positioned outside the message bounds and gets clipped in compact Command Center conversations.

Why: People should have the same copy affordance whether they view a task standalone or in the Command Center.

Changes

Keep the hover copy action inside the assistant message rail and reserve enough space to prevent it from covering message content. Add a regression test for the placement and clipboard behavior.

How did you test this?

• pnpm --filter @posthog/shared build
• pnpm --filter @posthog/ui exec vitest run src/features/sessions/components/session-update/AgentMessage.test.tsx
• pnpm exec biome check packages/ui/src/features/sessions/components/session-update/AgentMessage.tsx packages/ui/src/features/sessions/components/session-update/AgentMessage.test.tsx

Automatic notifications

• Publish to changelog?
• Alert Sales and Marketing teams?

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Created with PostHog Code

[trunk-io]

🚫 This pull request was removed from the merge queue because it was closed by @dmarticus. See more details here.

[github-actions]

React Doctor found no issues in the changed files. 🎉

_{Reviewed by React Doctor for commit 1e8a5bd.}

[dmarticus]

ah, looks like someone caught this. closing it.