Fix Antigravity model list and enhance clipboard-guided handoff UX

server/idea_generator.js

@@ -424,14 +424,13 @@ export const DEV_HANDOFF_TARGETS = {
     id: "antigravity",
     label: "🛸 Google Antigravity",
     protocol: "antigravity://",
-    defaultModel: "gemini-3.1-pro",
+    defaultModel: "gemini-3.8-flash",
     models: [
-      { id: "gemini-3.1-pro", label: "Gemini 3.1 Pro (Recommended — Full-Stack & Architecture)" },
-      { id: "gemini-3.0-pro", label: "Gemini 3.0 Pro (Deep Reasoning & Complex Refactors)" },
-      { id: "gemini-3.1-flash", label: "Gemini 3.1 Flash (Fast Iteration & UI Prototyping)" },
-      { id: "gemini-3.1-flash-lite", label: "Gemini 3.1 Flash-Lite (Lightweight & Rapid Tasks)" },
-      { id: "claude-sonnet-4.5", label: "Claude 4.5 Sonnet (via Antigravity Model Selector)" },
-      { id: "claude-opus-4.5", label: "Claude 4.5 Opus (via Antigravity Model Selector)" }
+      { id: "gemini-4-argon", label: "Gemini 4 Argon (Medium)" },
+      { id: "gemini-3.8-flash", label: "Gemini 3.8 Flash (Medium)" },
+      { id: "claude-opus-5.5", label: "Claude Opus 5.5 (Medium)" },
+      { id: "claude-sonnet-5.5", label: "Claude Sonnet 5.5 (Medium)" },
+      { id: "gpt-oss-120b", label: "GPT-OSS 120B (Medium)" }
     ]
   },
   codex: {
@@ -688,10 +687,14 @@ export async function executeDevelopmentHandoff({
     }
   }
 
+  const modelObj = targetMeta.models.find((m) => m.id === chosenModel);
+  const modelLabel = modelObj ? modelObj.label : chosenModel;
+
   return {
     targetApp,
     targetLabel: targetMeta.label,
     model: chosenModel,
+    modelLabel,
     slug,
     specMarkdown: compiledSpec,
     specUrl,