nixos/freshrss: fix startup when authType = "none"

Prior to this patch, FreshRSS fails to load with an initial
`authType = "none"` setting, instead providing an error:
"Error during context user init!"

To fix this, this patch changes the freshrss-config service to
setup the initial `defaultUser` when `authType = "none"`
is configured.

nixos/modules/services/web-apps/freshrss.nix

···
 
           script =
             let
-              userScriptArgs = ''--user ${cfg.defaultUser} --password "$(cat ${cfg.passwordFile})"'';
-              updateUserScript = optionalString (cfg.authType == "form") ''
+              userScriptArgs = ''--user ${cfg.defaultUser} ${optionalString (cfg.authType == "form") ''--password "$(cat ${cfg.passwordFile})"''}'';
+              updateUserScript = optionalString (cfg.authType == "form" || cfg.authType == "none") ''
                 ./cli/update-user.php ${userScriptArgs}
               '';
-              createUserScript = optionalString (cfg.authType == "form") ''
+              createUserScript = optionalString (cfg.authType == "form" || cfg.authType == "none") ''
                 ./cli/create-user.php ${userScriptArgs}
               '';
             in

nixos/tests/all-tests.nix

···
   freshrss-sqlite = handleTest ./freshrss-sqlite.nix {};
   freshrss-pgsql = handleTest ./freshrss-pgsql.nix {};
   freshrss-http-auth = handleTest ./freshrss-http-auth.nix {};
+  freshrss-none-auth = handleTest ./freshrss-none-auth.nix {};
   frigate = handleTest ./frigate.nix {};
   frp = handleTest ./frp.nix {};
   frr = handleTest ./frr.nix {};

nixos/tests/freshrss-none-auth.nix

···
+import ./make-test-python.nix ({ lib, pkgs, ... }: {
+  name = "freshrss";
+  meta.maintainers = with lib.maintainers; [ mattchrist ];
+
+  nodes.machine = { pkgs, ... }: {
+    services.freshrss = {
+      enable = true;
+      baseUrl = "http://localhost";
+      authType = "none";
+    };
+  };
+
+  testScript = ''
+    machine.wait_for_unit("multi-user.target")
+    machine.wait_for_open_port(80)
+    response = machine.succeed("curl -vvv -s http://127.0.0.1:80/i/")
+    assert '<title>Main stream · FreshRSS</title>' in response, "FreshRSS stream page didn't load successfully"
+  '';
+})

pkgs/servers/web-apps/freshrss/default.nix

···
   };
 
   passthru.tests = {
-    inherit (nixosTests) freshrss-sqlite freshrss-pgsql freshrss-http-auth;
+    inherit (nixosTests) freshrss-sqlite freshrss-pgsql freshrss-http-auth freshrss-none-auth;
   };
 
   buildInputs = [ php ];