101 featch available variables from previous steps (#8062)

- add outputSchema in workflow step settings
- use outputSchemas to compute step available variables


https://github.com/user-attachments/assets/6b851d8e-625c-49ff-b29c-074cd86cbfee

packages/twenty-front/src/modules/workflow/components/WorkflowEditActionFormServerlessFunction.tsx

@@ -48,7 +48,7 @@ export const WorkflowEditActionFormServerlessFunction = (
         value={props.action.settings.input.serverlessFunctionId}
         options={availableFunctions}
         disabled={props.readonly}
-        onChange={(updatedFunction) => {
+        onChange={(serverlessFunctionId) => {
           if (props.readonly === true) {
             return;
           }
@@ -58,7 +58,10 @@ export const WorkflowEditActionFormServerlessFunction = (
             settings: {
               ...props.action.settings,
               input: {
-                serverlessFunctionId: updatedFunction,
+                serverlessFunctionId,
+                serverlessFunctionVersion:
+                  serverlessFunctions.find((f) => f.id === serverlessFunctionId)
+                    ?.latestVersion || 'latest',
               },
             },
           });

packages/twenty-front/src/modules/workflow/components/WorkflowEditTriggerDatabaseEventForm.tsx

@@ -134,6 +134,7 @@ export const WorkflowEditTriggerDatabaseEventForm = ({
                     type: 'DATABASE_EVENT',
                     settings: {
                       eventName: `${updatedRecordType}.${OBJECT_EVENT_TRIGGERS[0].value}`,
+                      outputSchema: {},
                     },
                   },
             );
@@ -165,6 +166,7 @@ export const WorkflowEditTriggerDatabaseEventForm = ({
                     type: 'DATABASE_EVENT',
                     settings: {
                       eventName: `${availableMetadata[0].value}.${updatedEvent}`,
+                      outputSchema: {},
                     },
                   },
             );