Define and validate Recommended AIBrix configurations for Production Use

### 🚀 Feature Description and Motivation

Currently, many controller configuration values (e.g., resources, concurrency limits, resync periods, queue lengths) are set based on heuristics or "magic numbers" without empirical justification. This can lead to instability, performance bottlenecks, or memory issues at scale.

To support production-grade deployment, we need to identify recommended configuration ranges through systematic testing and monitoring.

### Goals
- Establish recommended settings for different size of clusters. A documented guide of production-safe configuration profiles (small, medium, large clusters).
- performance and scale testing.
- stability and memory validation through long running services.

### Use Case

for production user

### Proposed Solution

_No response_