feat: implement quota

[ngovinh2k2]

What?

Implement the quota

Why?

How?

Testing?

• Functional Testing
• Security
• Performance
• Error Handling
• Code Quality
• Documentation
• Database
• Deployment
• Final Review

Anything Else?

[gemini-code-assist]

Code Review

This pull request introduces quota management for spaces by defining a new SpaceQuota class and integrating it alongside QuotaMixin into SpaceView. However, because SpaceView overrides the destroy method without calling super().destroy(), the quota release mechanism in QuotaMixin is bypassed during space deletion. To ensure quotas are correctly released, the destroy method should be updated to delegate to the superclass.

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