fix(types): resolve mypy 1.19.1 errors in valkey_storage

- Remove explicit variable annotations using unfollowed glide types
  (VectorFieldAttributesHnsw | VectorFieldAttributesFlat, list[Field])
  which triggered [no-any-unimported] errors on lines 533 and 550
- Remove unused Field import
- Remove two unused type: ignore[arg-type] comments on hset() calls
  that mypy 1.19.1 no longer requires (glide stub now accepts
  dict[str, str | bytes] directly)

Author: MatthiasHowellYopp

lib/crewai/src/crewai/memory/storage/valkey_storage.py

@@ -22,7 +22,6 @@
     ConnectionError,
     DataType,
     DistanceMetricType,
-    Field,
     FtCreateOptions,
     FtSearchLimit,
     FtSearchOptions,
@@ -530,7 +529,6 @@ async def _ensure_vector_index(self) -> None:
 
         try:
             # Build vector field attributes using the concrete subclass
-            vector_attrs: VectorFieldAttributesHnsw | VectorFieldAttributesFlat
             if self._index_algorithm == "HNSW":
                 algorithm = VectorAlgorithm.HNSW
                 vector_attrs = VectorFieldAttributesHnsw(
@@ -547,7 +545,7 @@ async def _ensure_vector_index(self) -> None:
                 )
 
             # Build schema
-            schema: list[Field] = [
+            schema = [
                 VectorField("embedding", algorithm, vector_attrs),
                 TagField("scope"),
                 TagField("categories", separator=","),
@@ -690,7 +688,7 @@ async def asave(self, records: list[MemoryRecord]) -> None:
             # Store record hash (Valkey Search will auto-index it)
             await client.hset(
                 record_key,
-                record_dict,  # type: ignore[arg-type]  # str keys are valid str|bytes
+                record_dict,
             )
 
             # Update all index structures
@@ -846,7 +844,7 @@ async def _aupdate(self, record: MemoryRecord) -> None:
         # Store updated record hash
         await client.hset(
             record_key,
-            record_dict,  # type: ignore[arg-type]  # str keys are valid str|bytes
+            record_dict,
         )
 
         # Add to new indexes