feat(frontend): wire up bulk download for selected files #707

Bugbot Review

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✅ Completed bug detection (8m 18s)
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Final Result: Bugbot completed review - no new issues found! ✅

Request ID: serverGenReqId_d17a28b1-49e4-48ef-a0bf-65b53fb4917b

✅ Bugbot reviewed your changes and found no new issues!

Comment @cursor review or bugbot run to trigger another review on this PR

^{Reviewed by Cursor Bugbot for commit 88b2be5. Configure here.}