Add support for VolcEngine - the current version supports SDK2 (#885)

- The main idea is to assemble **ak**, **sk**, and **ep_id** into a
dictionary and store it in the database **api_key** field
- I don’t know much about the front-end, so I learned from Ollama, which
may be redundant.

### Configuration method

- model name

- Format requirements: {"VolcEngine model name":"endpoint_id"}
    - For example: {"Skylark-pro-32K":"ep-xxxxxxxxx"}
    
- Volcano ACCESS_KEY
- Format requirements: VOLC_ACCESSKEY of the volcano engine
corresponding to the model

- Volcano SECRET_KEY
- Format requirements: VOLC_SECRETKEY of the volcano engine
corresponding to the model
    
### What problem does this PR solve?

_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/user-setting/setting-model/hooks.ts

@@ -166,6 +166,41 @@ export const useSubmitOllama = () => {
   };
 };
 
+export const useSubmitVolcEngine = () => {
+  const loading = useOneNamespaceEffectsLoading('settingModel', ['add_llm']);
+  const [selectedVolcFactory, setSelectedVolcFactory] = useState<string>('');
+  const addLlm = useAddLlm();
+  const {
+    visible: volcAddingVisible,
+    hideModal: hideVolcAddingModal,
+    showModal: showVolcAddingModal,
+  } = useSetModalState();
+
+  const onVolcAddingOk = useCallback(
+    async (payload: IAddLlmRequestBody) => {
+      const ret = await addLlm(payload);
+      if (ret === 0) {
+        hideVolcAddingModal();
+      }
+    },
+    [hideVolcAddingModal, addLlm],
+  );
+
+  const handleShowVolcAddingModal = (llmFactory: string) => {
+    setSelectedVolcFactory(llmFactory);
+    showVolcAddingModal();
+  };
+
+  return {
+    volcAddingLoading: loading,
+    onVolcAddingOk,
+    volcAddingVisible,
+    hideVolcAddingModal,
+    showVolcAddingModal: handleShowVolcAddingModal,
+    selectedVolcFactory,
+  };
+};
+
 export const useHandleDeleteLlm = (llmFactory: string) => {
   const deleteLlm = useDeleteLlm();
   const showDeleteConfirm = useShowDeleteConfirm();