refactor(utils): remove circuit-breaker integration from helpers

- Utils/index.ts: re-export bounded-retry instead of circuit-breaker
- Utils/unified-session.ts: drop the optional circuit-breaker wrapping.
  Telemetry is non-critical; a single send attempt with the underlying
  sendNode timeout is sufficient. Removed enableCircuitBreaker option,
  circuitBreaker field, and CircuitOpenError handling.
- Utils/retry-utils.ts: drop the optional circuitBreaker option from
  withRetry. Retry mechanics are now self-contained; callers that need
  bounded retries should prefer withBoundedRetry directly.
- Utils/health-status.ts: stop importing globalCircuitRegistry. Keep the
  CircuitBreakerHealth shape for k8s probe schema stability — always
  reports an empty list now.

Note: src/Utils/structured-logger.ts has its own *private* CircuitBreaker
class for log-throttling — independent of the socket-level circuit breaker
being removed. Untouched.

baileys-logger.ts logCircuitBreaker() is a generic logging helper that
takes state strings as input — no import dependency. Untouched (no-op
for callers that no longer have circuit breakers).

src/Utils/retry-utils.ts

@@ -14,7 +14,6 @@
  */
 
 import { EventEmitter } from 'events'
-import type { CircuitBreaker } from './circuit-breaker.js'
 import { metrics } from './prometheus-metrics.js'
 
 /**
@@ -59,8 +58,6 @@ export interface RetryOptions {
 	operationName?: string
 	/** Collect metrics */
 	collectMetrics?: boolean
-	/** Circuit breaker for integration */
-	circuitBreaker?: CircuitBreaker
 	/** Callback before each retry */
 	onRetry?: (error: Error, attempt: number, delay: number) => void | Promise<void>
 	/** Callback on success */
@@ -283,7 +280,6 @@ export async function retry<T>(
 		timeout: options.timeout,
 		operationName: options.operationName ?? 'operation',
 		collectMetrics: options.collectMetrics ?? true,
-		circuitBreaker: options.circuitBreaker,
 		onRetry: options.onRetry ?? (() => {}),
 		onSuccess: options.onSuccess ?? (() => {}),
 		onFailure: options.onFailure ?? (() => {}),
@@ -313,11 +309,6 @@ export async function retry<T>(
 			throw new RetryAbortedError(attempt)
 		}
 
-		// Check circuit breaker
-		if (config.circuitBreaker?.isOpen()) {
-			throw new Error(`Circuit breaker "${config.circuitBreaker.getName()}" is open`)
-		}
-
 		try {
 			// Execute operation
 			let result: T