Task 11.8: Multi-Tenancy Support

[kluth]

Phase: 11 - Advanced & Enterprise Features (Lower Priority)

Tags: feature, security

Description:
Design tenant isolation model, implement tenant manager, resource quotas, tenant-aware metrics, and write multi-tenancy tests.

Acceptance Criteria:

• Design tenant isolation model
• Implement tenant manager
• Implement resource quotas
• Implement tenant-aware metrics
• Write multi-tenancy tests