fix: custom api doc

custom-api_v2.md

@@ -72,6 +72,39 @@ async (args) => {
 };
 ```
 
+v2.0.2 Request Hook 可以简化为：
+
+```js
+async (args) => {
+  const url = args.url;
+  const method = "POST";
+  const headers = { "Content-type": "application/json" };
+  const body = {
+    model: "gemma3",
+    messages: [
+      {
+        role: "system",
+        content: args.defaultSystemPrompt,
+      },
+      {
+        role: "user",
+        content: JSON.stringify({
+          targetLanguage: args.to,
+          segments: args.texts.map((text, id) => ({ id, text })),
+          glossary: {},
+        }),
+      },
+    ],
+    temperature: 0,
+    max_tokens: 20480,
+    think: false,
+    stream: false,
+  };
+
+  return { url, body, headers, method };
+};
+```
+
 Response Hook
 
 ```js
@@ -108,3 +141,12 @@ async ({ res }) => {
   return { translations };
 };
 ```
+
+v2.0.2 版后内置`parseAIRes`函数，Response Hook 可以简化为：
+
+```js
+async ({ res,  parseAIRes, }) => {
+  const translations = parseAIRes(res?.choices?.[0]?.message?.content);
+  return { translations };
+};
+```

src/apis/trans.js

@@ -26,6 +26,8 @@ import {
   INPUT_PLACE_KEY,
   INPUT_PLACE_MODEL,
   DEFAULT_USER_AGENT,
+  defaultSystemPrompt,
+  defaultSubtitlePrompt,
 } from "../config";
 import { msAuth } from "../libs/auth";
 import { genDeeplFree } from "./deepl";
@@ -678,13 +680,16 @@ export const genTransReq = async ({ reqHook, ...args }) => {
   if (reqHook?.trim() && !events) {
     try {
       interpreter.run(`exports.reqHook = ${reqHook}`);
-      const hookResult = await interpreter.exports.reqHook(args, {
-        url,
-        body,
-        headers,
-        userMsg,
-        method,
-      });
+      const hookResult = await interpreter.exports.reqHook(
+        { ...args, defaultSystemPrompt, defaultSubtitlePrompt },
+        {
+          url,
+          body,
+          headers,
+          userMsg,
+          method,
+        }
+      );
       if (hookResult && hookResult.url) {
         return genInit(hookResult);
       }
@@ -732,6 +737,8 @@ export const parseTransRes = async (
         fromLang,
         toLang,
         langMap,
+        extractJson,
+        parseAIRes,
       });
       if (hookResult && Array.isArray(hookResult.translations)) {
         if (history && userMsg && hookResult.modelMsg) {

src/config/api.js

@@ -340,7 +340,7 @@ Object.entries(OPT_LANGS_TO_SPEC).forEach(([t, m]) => {
   OPT_LANGS_TO_CODE[t] = specToCode(m);
 });
 
-const defaultSystemPrompt = `Act as a translation API. Output a single raw JSON object only. No extra text or fences.
+export const defaultSystemPrompt = `Act as a translation API. Output a single raw JSON object only. No extra text or fences.
 
 Input:
 {"targetLanguage":"<lang>","title":"<context>","description":"<context>","segments":[{"id":1,"text":"..."}],"glossary":{"sourceTerm":"targetTerm"},"tone":"<formal|casual>"}
@@ -381,7 +381,7 @@ Fail-safe: On any error, return {"translations":[]}.`;
 // 4. **Special Cases**: '[Music]' (and similar cues) are standalone entries. Translate appropriately (e.g., '[音乐]', '[Musique]').
 // `;
 
-const defaultSubtitlePrompt = `You are an expert AI for subtitle generation. Convert a JSON array of word-level timestamps into a bilingual VTT file.
+export const defaultSubtitlePrompt = `You are an expert AI for subtitle generation. Convert a JSON array of word-level timestamps into a bilingual VTT file.
 
 **Workflow:**
 1. Merge \`text\` fields into complete sentences; ignore empty text.