Memory Leak in In-Memory Collaboration State

[Ayaanshaikh12243]

Location: [collab.js), [index.js]

Issue: [const docs = { in-memory storage never gets cleaned up
Problem: Dead sessions accumulate in memory indefinitely, causing server memory bloat
Impact: Memory exhaustion, server crash after 10,000+ room abandonments
Missing: No garbage collection for disconnected users or inactive docs
Scenario: User joins room, disconnects - their data stays in [userMap forever

[github-actions]

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[Ayaanshaikh12243]

@ANU-2524 @Charu19awasthi please assign me

[ANU-2524]

i dont think so , there any need to garbage collection of disconnected users and all.