[PRP-273] Save doc upload s3 links to the database

[rocketnova]

Ticket

https://wicmtdp.atlassian.net/browse/PRP-273

Changes

What was added, updated, or removed in this PR.

• Save s3 presigned url into the documents table as a new s3Url column
• Add DOC_URL_EXPIRATION env var to control s3 presigned url expiration time

Context for reviewers

Testing instructions, background context, more in-depth details of the implementation, and anything else you'd like to call out or ask reviewers. Explain how the changes were verified.

This PR saves the presigned url for accepted uploaded documents into the database.

Testing

Screenshots, GIF demos, code examples or output to help show the changes working as expected. ProTip: you can drag and drop or paste images into this textbox.

[rocketnova]

Add a todo to write a unit test in s3.server.ts to test expiration of presigned urls. check it works, sleep 5s, check it fails.

import { BUCKET, ENDPOINT_URL } from "app/utils/config.server";

[github-actions[bot]]

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