⚡ Bolt: [performance improvement] Optimize team matching solo groups filtering using Set

[xb1g]

💡 What: Replaced !placed.includes(id) with a pre-computed placedSet.has(id) lookup inside the filtering loop for solo groups.

🎯 Why: Calling .includes() on an array inside a .filter() loop results in O(N^2) time complexity. Using a Set provides O(1) lookups, changing the complexity to O(N).

📊 Impact: Significantly improves performance when matching larger numbers of solo students into teams, preventing blocking operations during matching events.

🔬 Measurement: Verified the optimization preserves the exact existing behavior by successfully running the unit test suite pnpm jest components/admin/team-matching/matchTeams.test.ts.

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PR created automatically by Jules for task 16182564461271880489 started by @xb1g

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Project	Deployment	Actions	Updated (UTC)
pseed	Ready	Preview, Comment	Mar 26, 2026 4:03am

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Pull request overview

Improves the performance of the team-matching algorithm (admin “team matching” flow) by avoiding repeated linear lookups when filtering remaining solo users, which helps keep matching responsive for larger cohorts.

Changes:

• Precomputes a Set of placed solo user IDs and uses Set.has() instead of Array.includes() during remaining-solos filtering.
• Minor formatting/line-break adjustments that don’t change behavior.

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Status	Name	Latest Commit	Updated (UTC)
❌ Deployment failed View logs	web	d5d0dde	May 11 2026, 06:22 PM