Fix ffprobe path resolution and release v3.7.6

Use a safe path join for ffprobe instead of broad string replacement so video info, cutter duration, and merge duration checks work reliably on Windows installations.

typescript-version/src/index.html

@@ -335,7 +335,7 @@
 
                     <div class="settings-card">
                         <h3>Updates</h3>
-                        <p id="versionInfo" style="margin-bottom: 10px; color: var(--text-secondary);">Version: v3.7.5</p>
+                        <p id="versionInfo" style="margin-bottom: 10px; color: var(--text-secondary);">Version: v3.7.6</p>
                         <button class="btn-secondary" onclick="checkUpdate()">Nach Updates suchen</button>
                     </div>
                 </div>
@@ -346,7 +346,7 @@
                     <div class="status-dot" id="statusDot"></div>
                     <span id="statusText">Nicht verbunden</span>
                 </div>
-                <span id="versionText">v3.7.5</span>
+                <span id="versionText">v3.7.6</span>
             </div>
         </main>
     </div>

typescript-version/src/main.ts

@@ -8,7 +8,7 @@ import { autoUpdater } from 'electron-updater';
 // ==========================================
 // CONFIG & CONSTANTS
 // ==========================================
-const APP_VERSION = '3.7.5';
+const APP_VERSION = '3.7.6';
 const UPDATE_CHECK_URL = 'http://24-music.de/version.json';
 
 // Paths
@@ -219,7 +219,8 @@ function getFFmpegPath(): string {
 
 function getFFprobePath(): string {
     const ffmpegPath = getFFmpegPath();
-    return ffmpegPath.replace('ffmpeg.exe', 'ffprobe.exe').replace('ffmpeg', 'ffprobe');
+    const ffprobeExe = process.platform === 'win32' ? 'ffprobe.exe' : 'ffprobe';
+    return path.join(path.dirname(ffmpegPath), ffprobeExe);
 }
 
 // ==========================================