feat: subtitle: support ai segmentation

src/config/api.js

@@ -354,6 +354,24 @@ Output: {"translations":[{"id":1,"text":"一个<b>React</b>组件","sourceLangua
 
 Fail-safe: On any error, return {"translations":[]}.`;
 
+const defaultSubtitlePrompt = `Goal: Convert raw subtitle event JSON into a clean, sentence-based JSON array.
+
+Output (valid JSON array, output ONLY this array):
+[{
+  "text": "string",        // Full sentence with correct punctuation
+  "translation": "string", // Translation in ${INPUT_PLACE_TO}
+  "start": int,            // Start time (ms)
+  "end": int,              // End time (ms)
+  "duration": int          // end - start
+}]
+
+Guidelines:
+1. **Segmentation**: Merge sequential 'utf8' strings from 'segs' into full sentences, merging groups logically.
+2. **Punctuation**: Ensure proper sentence-final punctuation (., ?, !); add if missing.
+3. **Translation**: Translate 'text' into ${INPUT_PLACE_TO}, place result in 'translation'.
+4. **Special Cases**: '[Music]' (and similar cues) are standalone entries. Translate appropriately (e.g., '[音乐]', '[Musique]').
+`;
+
 const defaultRequestHook = `async (args, { url, body, headers, userMsg, method } = {}) => {
   console.log("request hook args:", args);
   // return { url, body, headers, userMsg, method };
@@ -375,6 +393,7 @@ const defaultApi = {
   key: "",
   model: "", // 模型名称
   systemPrompt: defaultSystemPrompt,
+  subtitlePrompt: defaultSubtitlePrompt,
   userPrompt: "",
   tone: BUILTIN_STONES[0], // 翻译风格
   placeholder: BUILTIN_PLACEHOLDERS[0], // 占位符

src/config/i18n.js

@@ -1484,9 +1484,9 @@ export const I18N = {
     zh_TW: `佔位標名`,
   },
   system_prompt_helper: {
-    zh: `在未完全理解默认Prompt的情况下，请勿随意修改，否则可能翻译失败。`,
-    en: `If you do not fully understand the default prompt, please do not modify it at will, otherwise the translation may fail.`,
-    zh_TW: `在未完全理解預設Prompt的情況下，請勿隨意修改，否則可能翻譯失敗。`,
+    zh: `在未完全理解默认Prompt的情况下，请勿随意修改，否则可能无法工作。`,
+    en: `Do not modify the default prompt without fully understanding it, otherwise it may not work.`,
+    zh_TW: `在未完全理解預設Prompt的情況下，請勿隨意修改，否則可能無法運作。`,
   },
   if_pre_init: {
     zh: `是否预初始化`,
@@ -1568,4 +1568,19 @@ export const I18N = {
     en: `Translation style`,
     zh_TW: `譯文樣式`,
   },
+  ai_segmentation: {
+    zh: `AI智能断句`,
+    en: `AI intelligent punctuation`,
+    zh_TW: `AI智慧斷句`,
+  },
+  subtitle_helper_1: {
+    zh: `1、目前仅支持Youtube英文字幕双语翻译，且仅支持浏览器扩展。`,
+    en: `1. Currently only supports bilingual translation of Youtube English subtitles, and only supports browser extensions.`,
+    zh_TW: `1.目前僅支援Youtube英文字幕雙語翻譯，且僅支援瀏覽器擴充功能。`,
+  },
+  subtitle_helper_2: {
+    zh: `2、插件内置基础断句逻辑，如不理想，可以启用AI智能断句，但需考虑视频长度与AI接口的处理能力，可能等待的时间会很长，甚至失败。`,
+    en: `2. The plug-in has built-in basic segmentation logic. If it is not ideal, you can enable AI intelligent segmentation. However, you need to consider the video length and the processing power of the AI ​​interface. The waiting time may be very long or even fail.`,
+    zh_TW: `2.插件內建基礎斷句邏輯，如不理想，可以啟用AI智能斷句，但需考慮視訊長度與AI介面的處理能力，可能等待的時間會很長，甚至失敗。`,
+  },
 };

src/config/setting.js

@@ -111,6 +111,7 @@ const SUBTITLE_TRANSLATION_STYLE = `font-size: clamp(1.5rem, 3cqw, 3rem);`;
 export const DEFAULT_SUBTITLE_SETTING = {
   enabled: true, // 是否开启
   apiSlug: OPT_TRANS_MICROSOFT,
+  segSlug: "-", // AI智能断句
   // fromLang: "en",
   toLang: "zh-CN",
   isBilingual: true, // 是否双语显示

src/config/url.js

@@ -1,6 +1,7 @@
 import { APP_LCNAME } from "./app";
 
 export const URL_CACHE_TRAN = `https://${APP_LCNAME}/translate`;
+export const URL_CACHE_SUBTITLE = `https://${APP_LCNAME}/subtitle`;
 export const URL_CACHE_DELANG = `https://${APP_LCNAME}/detectlang`;
 export const URL_CACHE_BINGDICT = `https://${APP_LCNAME}/bingdict`;