Fix PHP syntax error in try-catch block structure

- Fixed nested try-catch block structure in saveValidatedPDF method
- Corrected indentation and block nesting
- Resolved 'unexpected token catch' syntax error
- ECM integration code now has proper syntax
- Validation should work without parse errors

core/class/declarationtva.class.php

@@ -1190,6 +1190,7 @@ class DeclarationTVA
                     // Log that ECM files class is not available
                     error_log("DeclarationTVA: ECM files class not found. Tried paths: " . implode(', ', $ecmfiles_paths));
                 }
+            }
             
             // Return true even if ECM file creation failed - the PDF is still saved to disk
             return true;