Refresh expired presigned urls in chat messages

[rohan-uiuc]

Refresh expired S3 presigned URLs and non-presigned S3 object URLs in chat messages to prevent broken links and access errors.

The previous implementation did not refresh S3 presigned URLs, causing inline citations and file links to become inaccessible after their expiration time. This change introduces client-side logic to proactively refresh these URLs upon rendering and again on click, ensuring continuous access to linked content.

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[cursor]

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Project	Deployment	Preview	Comments	Updated (UTC)
uiuc-chat-frontend	Ready	Preview	Comment	Oct 7, 2025 7:18pm

[rohan-uiuc]

@cursor fix the build (npm run build:self-hosted)

[cursor]

I updated several dependencies and refined URL parsing logic within the chat component. These changes ensure better dependency management and more robust handling of URL hash fragments.

• I updated the @swc/helpers package from 0.5.2 to 0.5.17 and its tslib dependency from ^2.4.0 to ^2.8.0 in package-lock.json. This also resulted in next pulling in its own version of @swc/helpers at 0.5.2.
• I refined the URL parsing logic within the ChatMessage component in src/components/Chat/ChatMessage.tsx. The targetHref.split('#') operation was enhanced to correctly extract the base URL and hash fragment, specifically handling URLs with multiple hash symbols or no hash at all, improving robustness.

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