Respect direct input path arguments

pvd_mezzanine.py

@@ -525,9 +525,6 @@ def run_cli(input_file: str, output_dir: str = OUTPUT_BASE_DIR) -> int:
     except Exception as exc:
         print(f"\nFEHLER: {exc}")
         return 1
-    finally:
-        if sys.stdin.isatty():
-            os.system("pause")
 
 
 class MezzanineApp:
@@ -762,6 +759,12 @@ Write-Output $open.FileName
 def main() -> int:
     if len(sys.argv) > 2 and sys.argv[1] == "--cli":
         return run_cli(sys.argv[2], OUTPUT_BASE_DIR)
+    if len(sys.argv) > 1:
+        input_file = sys.argv[1]
+        if not os.path.isfile(input_file):
+            print(f"FEHLER: Eingabedatei nicht gefunden: {input_file}")
+            return 1
+        return run_cli(input_file, OUTPUT_BASE_DIR)
     return run_ui()