Added async recorders and registry

redis/asyncio/observability/__init__.py

@@ -0,0 +1,15 @@
+"""
+Async observability module for Redis async clients.
+
+This module provides async-safe APIs for recording Redis metrics using OpenTelemetry.
+
+Usage:
+    from redis.asyncio.observability.recorder import record_operation_duration
+    from redis.asyncio.observability.registry import get_async_observables_registry_instance
+
+Configuration is shared with the sync observability module:
+    from redis.observability import get_observability_instance, OTelConfig
+
+    otel = get_observability_instance()
+    otel.init(OTelConfig())
+"""