firefly-iii-data-importer: allow exit status 73 for no imports done

services/firefly-iii-data-importer.nix

@@ -89,6 +89,12 @@ in
       Group = config.services.firefly-iii-data-importer.group;
       WorkingDirectory = config.services.firefly-iii-data-importer.package;
       ExecStart = "${config.services.firefly-iii-data-importer.package}/artisan importer:import ${fidi.simplefinConfigPath}";
+      # The importer returns ExitCode 73 (NOTHING_WAS_IMPORTED) when SimpleFIN
+      # has zero new transactions for the requested window — a normal outcome
+      # on quiet days. Treat it as success so systemd doesn't mark the unit
+      # failed and trigger ntfy alerts. 73 is exclusively NOTHING_WAS_IMPORTED
+      # in this importer version (see app/Enums/ExitCode.php).
+      SuccessExitStatus = "73";
       # Same hardening posture as the upstream commonServiceConfig.
       ReadWritePaths = [ fidi.dataDir ];
       PrivateTmp = true;