Remove stepDisplayName and stepIndex logic; update context enrichment to use currentStepId instead

Author: Roman Snapko

packages/react-ui/src/app/features/ai/lib/enrich-context.ts

@@ -22,7 +22,7 @@ export const createAdditionalContext = (
     flowId: flowVersion.flowId,
     flowVersionId: flowVersion.id,
     runId,
-    currentStepIndex: stepData?.stepIndex,
+    currentStepId: stepData?.id ?? '',
     steps: [
       {
         id: stepData?.id ?? '',

packages/server/api/src/app/ai/chat/context-enrichment.service.ts

@@ -255,7 +255,7 @@ async function resolveVariable(
   if (!workflowStep) {
     return {
       name: variable.name,
-      value: 'Failed to resolve variable: Step not found in flow.',
+      value: 'Failed to resolve variable: Step not found in the workflow.',
     };
   }
 

packages/server/api/src/app/ai/chat/prompts.service.ts

@@ -139,14 +139,6 @@ export const buildUIContextSection = async (
     contextParts.push(`step id ${flowContext.currentStepId}`);
   }
 
-  if (flowContext.currentStepDisplayName) {
-    contextParts.push(`step name "${flowContext.currentStepDisplayName}"`);
-  }
-
-  if (flowContext.currentStepIndex) {
-    contextParts.push(`step index "${flowContext.currentStepIndex}"`);
-  }
-
   if (contextParts.length === 0) {
     return '';
   }