fix(cloud-agent): center GitHub/GitLab integration dialog vertically

[kilo-code-bot]

Summary

• The "Connect GitHub or GitLab to start a session" dialog on the /cloud page was anchored to the bottom of the content area (justify-end) instead of being centered, causing it to appear cut off at the bottom of the viewport.
• Changed the wrapper from justify-end p-4 pb-8 to justify-center p-4 in NewSessionPanel.tsx so the dialog renders centered vertically — consistent with how the main new-session form is positioned.

Verification

Navigate to /cloud with no GitHub/GitLab integration connected. The dialog should now appear centered in the content area.

Visual Changes

Before: dialog anchored to the bottom-right of the content pane, partially cut off.
After: dialog centered both horizontally and vertically in the content pane.

Reviewer Notes

Single-line layout change in the integration-missing early-return branch of NewSessionPanel.tsx.

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Built for Remon Oldenbeuving by Kilo for Slack

[kilo-code-bot]

Code Review Summary

Status: No Issues Found | Recommendation: Merge

Files Reviewed (1 files)

• apps/web/src/components/cloud-agent-next/NewSessionPanel.tsx

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_{Review guidance: REVIEW.md from base branch main}