fix: clarify generation product naming

web/app/layout.tsx

@@ -12,8 +12,8 @@ const _playfairDisplay = Playfair_Display({
 })
 
 export const metadata: Metadata = {
-  title: "SKG 营销内容工作台",
-  description: "SKG AI 图片、视频和文案创作台",
+  title: "SKG 生图生视频",
+  description: "SKG AI 图片和视频生成入口",
 }
 
 export default function RootLayout({

web/app/login/page.tsx

@@ -142,7 +142,7 @@ export default function LoginPage() {
         <section className="login-auth-panel login-source-auth-panel login-source-combo-panel rounded-[8px]">
           <div className="login-top-brand" aria-hidden="true">
             <img className="login-top-brand__logo" src="/skg-logo-black.svg" alt="" />
-            <span className="login-top-brand__system">营销内容工作台</span>
+            <span className="login-top-brand__system">生图生视频</span>
           </div>
           <div className="login-source-character-strip" aria-hidden="true">
             <AnimatedLoginCharacters mood={mood} eyeOffset={eyeOffset} />

web/app/page.tsx

@@ -362,7 +362,7 @@ export default function Home() {
             <span className="flex h-6 w-6 items-center justify-center rounded-lg bg-cyan-400/12 text-cyan-200">
               <Sparkles className="h-3.5 w-3.5" />
             </span>
-            SKG 生成
+            SKG 生图生视频
           </div>
           {job ? (
             <a href={`/detail/?job=${job.id}`} className="inline-flex items-center gap-1.5 rounded-lg px-2 py-1.5 text-white/52 transition hover:bg-white/8 hover:text-white">
@@ -517,7 +517,7 @@ export default function Home() {
                     className="inline-flex h-10 items-center justify-center gap-2 rounded-full border border-white/10 bg-white/6 px-4 text-sm font-semibold text-white/72 transition hover:border-cyan-200/24 hover:text-cyan-100"
                   >
                     <ExternalLink className="h-4 w-4" />
-                    无限画布
+                    生成画布
                   </a>
                   <button
                     type="button"