Function wrapWithBreaker

wrapWithBreaker<T>(
    key: string,
    fn: () => Promise<T>,
    cfg?: Partial<BreakerCfg>,
): Promise<T>
Wraps an async operation with a circuit breaker.
Type Parameters
- T
Parameters
- key: string
  Unique key for the breaker instance (e.g., "GET:/api/patients").
- fn: () => Promise<T>
  Function returning a Promise to protect.
- cfg: Partial<BreakerCfg> = {}
  Partial breaker configuration (optional).
Returns Promise<T>
The resolved value from the operation, or throws if the breaker is open.
Example
```
// Protect a fetch call with a circuit breaker
const result = await wrapWithBreaker('GET:/api/patients', () => fetch('/api/patients'));
```
Example
```
// Custom thresholds
const data = await wrapWithBreaker('POST:/api/orders', () => postOrder(), { failureThreshold: 3, cooldownMs: 5000 });
```
- Defined in src/api/circuitBreaker.ts:62