Revert "feat(loading): support typewriter story teaser during first scene generation"

This reverts commit 4e4e06ec8a.

app/api/teaser/route.ts

@@ -1,45 +0,0 @@
-import { chat } from "@infiplot/ai-client";
-import { NextResponse } from "next/server";
-import { loadEngineConfig } from "@/lib/config";
-
-export const runtime = "nodejs";
-export const maxDuration = 30;
-
-const TEASER_SYSTEM = `你是一个交互视觉小说的“故事预告设计师/旁白配音员”。
-根据用户输入的故事设定、面向观众、剧情风格和内容节奏，为该故事撰写一段富有悬念、画面感极强、极具吸引力的【故事预告】（类似电影预告片旁白风格）。
-
-要求：
-1. 语言必须富有情感、张力、史诗感或治愈感（根据题材基调决定），用第二人称“你”指代玩家。
-2. 长度控制在 80-150 字以内，字句简练，用字考究，多用短句。
-3. 绝对只返回预告片纯文本内容，不要带有任何 JSON 标记、Markdown 标题或“预告：”等任何额外字符。直接输出文字本身。`;
-
-export async function POST(req: Request) {
-  let body: { worldSetting?: string };
-  try {
-    body = (await req.json()) as { worldSetting?: string };
-  } catch {
-    return NextResponse.json({ error: "Invalid JSON" }, { status: 400 });
-  }
-
-  const worldSetting = body.worldSetting?.trim();
-  if (!worldSetting) {
-    return NextResponse.json({ error: "worldSetting is required" }, { status: 400 });
-  }
-
-  try {
-    const config = loadEngineConfig(req.headers);
-    const rawTeaser = await chat(
-      config.text,
-      [
-        { role: "system", content: TEASER_SYSTEM },
-        { role: "user", content: `故事设定如下，请生成一段精彩的预告：\n\n${worldSetting}` },
-      ],
-      { temperature: 0.85, tag: "teaser" }
-    );
-
-    return NextResponse.json({ teaser: rawTeaser.trim() });
-  } catch (err) {
-    const message = err instanceof Error ? err.message : "Unknown error";
-    return NextResponse.json({ error: message }, { status: 500 });
-  }
-}

app/play/page.tsx

@@ -402,7 +402,6 @@ function PlayInner() {
   const [error, setError] = useState<string | null>(null);
   const [presentation, setPresentation] = useState(false);
   const [lastExitLabel, setLastExitLabel] = useState<string | null>(null);
-  const [teaserText, setTeaserText] = useState<string | null>(null);
 
   const startedRef = useRef(false);
   const poolRef = useRef<Map<string, PrefetchEntry>>(new Map());
@@ -695,25 +694,6 @@ function PlayInner() {
       return;
     }
 
-    if (livePayload) {
-      fetch("/api/teaser", {
-        method: "POST",
-        headers: {
-          "Content-Type": "application/json",
-          ...getByoHeaders(),
-        },
-        body: JSON.stringify({ worldSetting: livePayload.worldSetting }),
-      })
-        .then(async (r) => {
-          if (!r.ok) return;
-          const data = await r.json();
-          if (data.teaser) {
-            setTeaserText(data.teaser);
-          }
-        })
-        .catch(() => {});
-    }
-
     type PrebakedFirstAct = StartResponse & {
       worldSetting: string;
       styleGuide: string;
@@ -1175,7 +1155,6 @@ function PlayInner() {
           onAdvance={onAdvance}
           onSelectChoice={onSelectChoice}
           fullViewport
-          teaserText={teaserText}
         />
       </div>
     );
@@ -1215,7 +1194,6 @@ function PlayInner() {
           onBackgroundClick={onBackgroundClick}
           onAdvance={onAdvance}
           onSelectChoice={onSelectChoice}
-          teaserText={teaserText}
           aboveCanvas={
             <button
               type="button"