feat: run flow (#1076)

### What problem does this PR solve?

feat: run flow #918 

### Type of change


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

web/src/utils/api.ts

@@ -89,4 +89,5 @@ export default {
   removeCanvas: `${api_host}/canvas/rm`,
   setCanvas: `${api_host}/canvas/set`,
   resetCanvas: `${api_host}/canvas/reset`,
+  runCanvas: `${api_host}/canvas/run`,
 };

web/src/utils/form.ts

@@ -3,7 +3,7 @@ import omit from 'lodash/omit';
 
 // chat model setting and generate operator
 export const excludeUnEnabledVariables = (
-  values: any,
+  values: any = {},
   prefix = 'llm_setting.',
 ) => {
   const unEnabledFields: Array<keyof typeof variableEnabledFieldMap> =