feat: checker to verify before room creation

# Issue Template

## Description

As we discussed in discord regarding this. I'm just adding it here.

https://discord.com/channels/1173844241542287482/1173844241542287485/1264884109574934569

## Steps to Reproduce

1. Step 1
2. Step 2
3. Step 3

## Expected Behavior

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## Actual Behavior

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## Screenshots

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## Environment

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## Additional Information

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The issue references a Discord discussion about a checker before room creation. Look for room creation logic in the codebase, likely in a module handling room management or session initiation. Understand the existing flow and what conditions need verification. Check linked PR #423 for any work already done. Determine what 'done' means by seeing if the checker is integrated and tested.

Written by the indexing model from the issue text.