chore: Consistent naming for VectorIO providers (#1023)

# What does this PR do?

This changes all VectorIO providers classes to follow the pattern
`<ProviderName>VectorIOConfig` and `<ProviderName>VectorIOAdapter`. All
API endpoints for VectorIOs are currently consistent with `/vector-io`.

Note that API endpoint for VectorDB stay unchanged as `/vector-dbs`. 

## Test Plan

I don't have a way to test all providers. This is a simple renaming so
things should work as expected.

---------

Signed-off-by: Yuan Tang <terrytangyuan@gmail.com>

llama_stack/providers/remote/vector_io/weaviate/__init__.py

@@ -8,12 +8,12 @@ from typing import Dict
 
 from llama_stack.providers.datatypes import Api, ProviderSpec
 
-from .config import WeaviateConfig, WeaviateRequestProviderData  # noqa: F401
+from .config import WeaviateRequestProviderData, WeaviateVectorIOConfig  # noqa: F401
 
 
-async def get_adapter_impl(config: WeaviateConfig, deps: Dict[Api, ProviderSpec]):
-    from .weaviate import WeaviateMemoryAdapter
+async def get_adapter_impl(config: WeaviateVectorIOConfig, deps: Dict[Api, ProviderSpec]):
+    from .weaviate import WeaviateVectorIOAdapter
 
-    impl = WeaviateMemoryAdapter(config, deps[Api.inference])
+    impl = WeaviateVectorIOAdapter(config, deps[Api.inference])
     await impl.initialize()
     return impl

llama_stack/providers/remote/vector_io/weaviate/config.py

@@ -12,5 +12,5 @@ class WeaviateRequestProviderData(BaseModel):
     weaviate_cluster_url: str
 
 
-class WeaviateConfig(BaseModel):
+class WeaviateVectorIOConfig(BaseModel):
     pass

llama_stack/providers/remote/vector_io/weaviate/weaviate.py

@@ -23,7 +23,7 @@ from llama_stack.providers.utils.memory.vector_store import (
     VectorDBWithIndex,
 )
 
-from .config import WeaviateConfig, WeaviateRequestProviderData
+from .config import WeaviateRequestProviderData, WeaviateVectorIOConfig
 
 log = logging.getLogger(__name__)
 
@@ -85,12 +85,12 @@ class WeaviateIndex(EmbeddingIndex):
         collection.data.delete_many(where=Filter.by_property("id").contains_any(chunk_ids))
 
 
-class WeaviateMemoryAdapter(
+class WeaviateVectorIOAdapter(
     VectorIO,
     NeedsRequestProviderData,
     VectorDBsProtocolPrivate,
 ):
-    def __init__(self, config: WeaviateConfig, inference_api: Api.inference) -> None:
+    def __init__(self, config: WeaviateVectorIOConfig, inference_api: Api.inference) -> None:
         self.config = config
         self.inference_api = inference_api
         self.client_cache = {}