fix(utils): resolve TypeScript compilation errors

- baileys-event-stream.ts: Add null check for buffer item in priority insertion
- baileys-logger.ts: Handle 'silent' log level and fix JID sanitization
- cache-utils.ts: Fix type incompatibility in global cache with any type
- logger-adapter.ts: Add nullish coalescing for level mapping and fix console type cast
- prometheus-metrics.ts: Rename private 'metrics' property to 'metricsMap' to avoid conflict with method
- trace-context.ts: Store baggage header in variable before accessing to fix undefined check

src/Utils/logger-adapter.ts

@@ -120,7 +120,7 @@ export class LoggerAdapter implements ILogger {
 		}
 
 		if (this.config.levelMapping && level in this.config.levelMapping) {
-			return this.config.levelMapping[level]
+			return this.config.levelMapping[level] ?? 'info'
 		}
 
 		return (level as LogLevel) || 'info'
@@ -327,8 +327,12 @@ function createLogMethod(
 	return (obj: unknown, msg?: string) => {
 		if (typeof logger[level] === 'function') {
 			;(logger[level] as (obj: unknown, msg?: string) => void)(obj, msg)
-		} else if (typeof (console as Record<string, unknown>)[level] === 'function') {
-			;(console as Record<string, (...args: unknown[]) => void>)[level](obj, msg)
+		} else {
+			// Fallback to console methods
+			const consoleMethod = (console as unknown as Record<string, ((...args: unknown[]) => void) | undefined>)[level]
+			if (typeof consoleMethod === 'function') {
+				consoleMethod(obj, msg)
+			}
 		}
 	}
 }