Rewrite frontend as single self-contained HTML file — all CSS/JS inline, no external files to fail loading

dist/server/services/muxer.js

@@ -0,0 +1,29 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.muxAudioDescription = muxAudioDescription;
+const child_process_1 = require("child_process");
+const path_1 = __importDefault(require("path"));
+function muxAudioDescription(videoPath, audioPath, outputPath) {
+    const ext = path_1.default.extname(outputPath).toLowerCase();
+    const isMkv = ext === '.mkv';
+    const cmd = [
+        'ffmpeg -v error',
+        `-i "${videoPath}"`,
+        `-i "${audioPath}"`,
+        '-map 0:v',
+        '-map 0:a?',
+        '-map 1:a',
+        '-c:v copy',
+        '-c:a copy',
+        isMkv
+            ? '-metadata:s:a:1 title="Audio Description"'
+            : '-metadata:s:a:1 title="Audio Description"',
+        `"${outputPath}"`,
+        '-y'
+    ].join(' ');
+    (0, child_process_1.execSync)(cmd);
+}
+//# sourceMappingURL=muxer.js.map