feat: add image generation tool and WebUI mode

Co-authored-by: Cursor <cursoragent@cursor.com>

webui/src/tests/i18n.test.tsx

@@ -7,6 +7,7 @@ import { ThreadComposer } from "@/components/thread/ThreadComposer";
 import { resources } from "@/i18n";
 
 const QUICK_ACTION_KEYS = ["plan", "analyze", "brainstorm", "code", "summarize", "more"];
+const IMAGE_QUICK_ACTION_KEYS = ["icon", "sticker", "poster", "product", "portrait", "edit"];
 
 describe("webui i18n", () => {
   it("switches UI copy and document locale through the language switcher", async () => {
@@ -54,6 +55,11 @@ describe("webui i18n", () => {
         expect(action.title).toBeTruthy();
         expect(action.prompt).toBeTruthy();
       }
+      for (const key of IMAGE_QUICK_ACTION_KEYS) {
+        const action = empty.imageQuickActions[key as keyof typeof empty.imageQuickActions];
+        expect(action.title).toBeTruthy();
+        expect(action.prompt).toBeTruthy();
+      }
     }
   });
 });