fix: force qwen3-vl fallback for multimodal-only agent vision

lib/ai/smart-analyzer.ts

@@ -880,6 +880,7 @@ export async function summarizeImageForExecutionReport(params: {
     },
   )?.provider;
   const volcanoProvider = volcanoProviderFromAgent || volcanoProviderFallback;
+  const forceQwenSummary = shouldForceQwen3VlForImageAnalysis(agentModel);
 
   const promptText = [
     "只根据图片中可见内容做客观观察，不要推测用户意图。",
@@ -889,6 +890,18 @@ export async function summarizeImageForExecutionReport(params: {
     context ? `画布上下文（仅辅助理解，不要复述）：${context.slice(0, 120)}` : "",
   ].join("\n");
 
+  if (forceQwenSummary) {
+    console.warn(
+      "[Smart Analyzer] Force qwen3-vl visual summary due multimodal-flag-only agent model",
+    );
+    const forcedSummary = await summarizeWithHardcodedQwen3VlFallback({
+      text,
+      context,
+      imageUrls,
+    });
+    if (forcedSummary) return forcedSummary;
+  }
+
   if (zhipuProvider?.apiKey && zhipuProvider?.baseUrl) {
     const summary = await summarizeWithZhipuOfficialApi({
       apiKey: zhipuProvider.apiKey,
@@ -1110,6 +1123,30 @@ function isLikelyVisionCapableModel(modelWithProvider: {
   return false;
 }
 
+function shouldForceQwen3VlForImageAnalysis(modelWithProvider?: {
+  model: {
+    supportsVision?: boolean;
+    displayName?: string | null;
+    modelId?: string | null;
+    capabilities?: unknown;
+  };
+  provider: {
+    type?: string | null;
+  };
+} | null): boolean {
+  if (!modelWithProvider) return false;
+  if (modelWithProvider.model.supportsVision) return false;
+  if (!isAiModelMultimodal(modelWithProvider.model)) return false;
+
+  const providerType = String(modelWithProvider.provider?.type || "");
+  if (!["custom", "openai", "local"].includes(providerType)) return false;
+
+  const modelText =
+    `${modelWithProvider.model.displayName || ""} ${modelWithProvider.model.modelId || ""}`.toLowerCase();
+
+  return /(doubao[-_.]?seed[-_.]?2[-_.]?0|seed[-_.]?2[-_.]?0)/i.test(modelText);
+}
+
 /**
  * 分析用户意图
  */
@@ -1246,6 +1283,20 @@ async function analyzWithLLM(
     });
   }
 
+  if (hasImage && shouldForceQwen3VlForImageAnalysis(selectedAnalyzerModel)) {
+    console.warn(
+      "[Smart Analyzer] Force hardcoded qwen3-vl for image analysis due multimodal-flag-only primary model",
+    );
+    return analyzeWithHardcodedQwen3VlFallback({
+      text,
+      hasImage,
+      imageUrls,
+      historyMessages,
+      context,
+      reason: "force_qwen3vl_multimodal_flag_only",
+    });
+  }
+
   const model = await getLanguageModelById(selectedAnalyzerModel.model.id);
   if (!model) {
     console.log("[Smart Analyzer] Failed to get language model");