Handle comment activity refetch errors

[cursor]

Changes

• Await the ActivityWrapper comment creation SWR mutation so post-comment activity-log refetch failures are handled by the existing catch block instead of surfacing as unhandled promise rejections.
• Addresses the first-party frame seen in Sentry issue TASKS-97 (src/app/detail/ui/ActivityWrapper.tsx -> src/utils/fetcher.ts) after a successful comment post/navigation in Safari.

Testing Criteria

• yarn lint:check passed.
• yarn tsc was attempted, but the repo currently fails before this change on missing SVG module declarations/imports in src/icons/index.ts (for example ./inreview.svg, ./humans.svg, and many other SVG imports).

Notes

• Sentry: https://copilot-platforms.sentry.io/issues/TASKS-97
• Related existing grouped issue: https://copilot-platforms.sentry.io/issues/TASKS-8Z
• Linear MCP session was expired during automation, so ticket commenting may require re-authentication if the retry still fails.

Impact & Surface Area of Change

• Comment creation on the task detail activity section.
• Optimistic SWR mutation error handling for activity-log re-fetch after comment submission.

  

[linear-code]

OUT-3871

[vercel]

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Project	Deployment	Actions	Updated (UTC)
tasks-app	Ready	Preview, Comment	Jun 12, 2026 3:26pm