fix(ui): add visual error toast notification for corrupted share links

[tirth707]

Closes #801

This PR improves the initialization User Experience (UX) by ensuring that corrupted, malformed, or expired shared workspace links do not cause silent UI failures. It introduces a global error listener to provide immediate visual feedback to the user while safely loading the default playground state.

Changes

• Imported the message component from antd in App.tsx.
• Implemented a React useEffect hook to listen to the global Zustand error state.
• Configured the listener to trigger a visual toast notification specifically when the store registers a "Failed to decompress" error during the loadFromLink sequence.

Flags

• The loadFromLink function within the Zustand store catches decompression errors internally and pushes them to the Problems panel rather than throwing them back up to the App.tsx initialization catch block. Monitoring the global store error state was the most non-intrusive way to hook into this failure without rewriting the store's internal error handling logic.

Screenshots or Video

Related Issues

• Issue Bug: App fails silently without UI feedback when loading corrupted share links #801

Author Checklist

• Ensure you provide a DCO sign-off for your commits using the --signoff option of git commit.
• Vital features and changes captured in unit and/or integration tests
• Commits messages follow AP format
• Extend the documentation, if necessary
• Merging to main from fork:branchname

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[Copilot]

Pull request overview

Improves Template Playground startup UX by surfacing a visual Ant Design toast when a shared workspace link cannot be decompressed during initialization, instead of failing silently.

Changes:

• Added Ant Design message toast notification for a specific share-link decompression failure.
• Subscribed to Zustand global error state via a useEffect listener.
• Switched the AI config selector to useStoreWithEqualityFn(..., shallow) to reduce rerenders from object selectors.

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Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

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Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

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Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

[github-actions]

This PR is stale because it has been open 15 days with no activity. Remove stale label or comment or this will be closed in 10 days.

[tirth707]

Hey please don't close this PR

[mttrbrts]

Thanks for this contribution! Before we can merge, all commits need to be signed off for the Developer Certificate of Origin.

Please run:

git rebase HEAD~N --signoff  # where N = number of commits
git push --force-with-lease

See CONTRIBUTING.md for details.

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