fix: load workspace source from app entry point

ytpl-sync-entry.py

@@ -1,5 +1,12 @@
 from __future__ import annotations
 
+import sys
+from pathlib import Path
+
+src_dir = Path(__file__).resolve().parent / "src"
+if str(src_dir) not in sys.path:
+    sys.path.insert(0, str(src_dir))
+
 from app.gui.main import main
 
 if __name__ == "__main__":