[FEATURE] Implement Multi-Tenant Resource Quota Governor and Automatic Rate-Limiting Ceilings

Problem

Adversarial or malfunctioning multi-agent tool loops can execute malicious recursive processing chains, causing individual tenant clusters to completely exhaust host file descriptors, flood socket memory buffers, and choke sibling workspace operations channels [1.5].

Proposed Solution

Develop a strict multi-tenant resource containment engine inside internal/governance/quota_manager.go:

1. The Ingress Token Bucket Rate-Limiter: Integrate a high-velocity token bucket system tracking connection frequencies against hard configured environment quota parameters per tenant ID.
2. Dynamic Circuit Breaker Triggers: When a specific agent container's thread allocation bounds cross the safety ceiling parameters (e.g., CPU reservation over 90%), instantly fire an operational fallback signal to throttle that single workspace layer cleanly without degrading core system infrastructure runtimes.

Use Case

Directly addresses the high-priority enterprise security governance criteria specified inside the latest YC Requests for Startups, protecting shared cloud margins natively against volatile processing loops.

Start by reading internal/governance/quota_manager.go and identifying how tenant IDs and environment quota parameters are represented. Define the token-bucket ingress limits and circuit-breaker safety ceilings before implementing the containment engine. Done means each tenant can be rate-limited independently and an over-ceiling agent workspace is throttled without degrading sibling operations.