Fixes: Added session variable types and modified configuration (#11269)

### What problem does this PR solve?

Fixes: Added session variable types and modified configuration

- Added more types of session variables
- Modified the embedding model switching logic in the knowledge base
configuration

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/services/knowledge-service.ts

@@ -47,6 +47,7 @@ const {
   traceGraphRag,
   runRaptor,
   traceRaptor,
+  check_embedding,
 } = api;
 
 const methods = {
@@ -214,6 +215,11 @@ const methods = {
     url: api.pipelineRerun,
     method: 'post',
   },
+
+  checkEmbedding: {
+    url: check_embedding,
+    method: 'post',
+  },
 };
 
 const kbService = registerServer<keyof typeof methods>(methods, request);