fix(api): initialize redis for operator summary cache

apps/api/src/services/operator_summary_cache.py

@@ -14,9 +14,12 @@ from dataclasses import dataclass
 from datetime import UTC, datetime, timedelta
 from typing import Any
 
+import structlog
+
 
 _CACHE_SCHEMA_VERSION = "operator_summary_cache_v1"
 _CACHE_SOURCE = "api_pod_memory"
+logger = structlog.get_logger(__name__)
 
 
 @dataclass(slots=True)
@@ -90,6 +93,15 @@ def _decode_redis_value(raw: Any) -> dict[str, Any] | None:
     return payload if isinstance(payload, dict) else None
 
 
+async def _get_redis_client() -> Any:
+    from src.core.redis_client import get_redis, init_redis_pool
+
+    try:
+        return get_redis()
+    except RuntimeError:
+        return await init_redis_pool()
+
+
 def get_cached_operator_summary(
     namespace: str,
     key_parts: dict[str, Any],
@@ -126,9 +138,7 @@ async def get_cached_operator_summary_async(
     """Return a shared Redis cache hit, falling back to process memory."""
     redis_key = _redis_key(namespace, key_parts)
     try:
-        from src.core.redis_client import get_redis
-
-        redis_client = get_redis()
+        redis_client = await _get_redis_client()
         payload = _decode_redis_value(await redis_client.get(redis_key))
         if payload is not None and isinstance(payload.get("value"), dict):
             stored_epoch = float(payload.get("stored_epoch") or 0.0)
@@ -157,8 +167,12 @@ async def get_cached_operator_summary_async(
                     ),
                 )
             await redis_client.delete(redis_key)
-    except Exception:
-        pass
+    except Exception as exc:
+        logger.debug(
+            "operator_summary_redis_cache_read_failed",
+            namespace=namespace,
+            error=str(exc),
+        )
 
     return get_cached_operator_summary(
         namespace,
@@ -220,16 +234,18 @@ async def store_operator_summary_async(
         "ttl_seconds": ttl_value,
     }
     try:
-        from src.core.redis_client import get_redis
-
-        redis_client = get_redis()
+        redis_client = await _get_redis_client()
         await redis_client.set(
             _redis_key(namespace, key_parts),
             json.dumps(payload, ensure_ascii=False, default=_json_default),
             ex=ttl_value,
         )
-    except Exception:
-        pass
+    except Exception as exc:
+        logger.debug(
+            "operator_summary_redis_cache_write_failed",
+            namespace=namespace,
+            error=str(exc),
+        )
     return response