feat(workflow): add per-agent vision configuration

frontend/src/components/pages/AssistantPage.tsx

@@ -56,6 +56,7 @@ import type { WorkflowSettings } from "@/components/workflow/types";
 import { SectionCard } from "@/components/editor/section-card";
 import {
   defaultGraph,
+  workflowUsesVision,
   type WorkflowGraph,
 } from "@/components/workflow/specs";
 import {
@@ -702,6 +703,12 @@ export function AssistantPage(props: AssistantPageProps) {
               assistant.modelResourceIds.LLM,
             asr: graph.settings?.defaultAsrResourceId || assistant.modelResourceIds.ASR,
             tts: graph.settings?.defaultTtsResourceId || assistant.modelResourceIds.TTS,
+            visionEnabled:
+              graph.settings?.visionEnabled ?? assistant.visionEnabled,
+            visionModelResourceId:
+              graph.settings?.visionModelResourceId ??
+              assistant.visionModelResourceId ??
+              "",
             toolIds: graph.settings?.toolIds ?? [],
             knowledgeBaseId:
               graph.settings?.knowledgeBaseId || assistant.knowledgeBaseId || "",
@@ -792,6 +799,8 @@ export function AssistantPage(props: AssistantPageProps) {
         type: "workflow",
         enableInterrupt: workflowSettings.allowInterrupt,
         turnConfig: workflowSettings.turnConfig,
+        visionEnabled: workflowUsesVision(workflowGraph),
+        visionModelResourceId: null,
         modelResourceIds: {
           ...(workflowSettings.llm ? { LLM: workflowSettings.llm } : {}),
           ...(workflowSettings.asr ? { ASR: workflowSettings.asr } : {}),
@@ -1314,6 +1323,7 @@ export function AssistantPage(props: AssistantPageProps) {
           llm: credOptions("LLM"),
           asr: credOptions("ASR"),
           tts: credOptions("TTS"),
+          vision: visionModelOptionsFor(""),
         }}
         toolOptions={tools
           .filter((tool) => tool.status === "active")