Fix admin submission review flow for Goal 6

[kota1112]

Summary

Adjusted the admin submission review flow for Sprint 2 Goal 6.

Changes from main

• Made Pending Submissions fetching tolerant of environment differences by handling both pending and pending_review
• Saved reviewed_by and reviewed_at when an admin approves or rejects a submission
• Made reject handling compatible across environments by falling back from rejected to denied when needed
• Prevented a submissions query failure from causing the rest of the admin dashboard data to appear empty

Files changed

• src/pages/AdminDashboard.tsx

Notes

• This PR only changes the admin submission review flow
• No final functional changes were kept outside src/pages/AdminDashboard.tsx

Remaining risk

• Submission status values are still inconsistent across environments
• Approve status update and XP update are still separate queries

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Project	Deployment	Actions	Updated (UTC)
no-code-jam	Ready	Preview, Comment	May 13, 2026 1:36pm