feat(users): add ability to disable users without deleting them

- Add disabled boolean field to user schema (PostgreSQL, MySQL, SQLite)
- Block disabled users from logging in via any auth provider (credentials, LDAP, OIDC)
- Check disabled status in session callback to prevent session replay
- Add changeDisabled API endpoint (admin-only)
- Include disabled field in getById and getAll user endpoints
- Add disable/enable user toggle in admin UI with status badge in user list

apps/nextjs/src/app/[locale]/manage/users/[userId]/general/_components/_disable-user-button.tsx

@@ -0,0 +1,62 @@
+"use client";
+
+import { useTransition } from "react";
+import { Button, Tooltip } from "@mantine/core";
+
+import type { RouterOutputs } from "@homarr/api";
+import { clientApi } from "@homarr/api/client";
+import { showErrorNotification, showSuccessNotification } from "@homarr/notifications";
+import { useI18n } from "@homarr/translation/client";
+
+interface DisableUserButtonProps {
+  user: RouterOutputs["user"]["getById"];
+}
+
+export const DisableUserButton = ({ user }: DisableUserButtonProps) => {
+  const t = useI18n();
+  const [isPending, startTransition] = useTransition();
+  const changeDisabledMutation = clientApi.user.changeDisabled.useMutation();
+
+  const handleToggle = () => {
+    startTransition(async () => {
+      try {
+        await changeDisabledMutation.mutateAsync({
+          userId: user.id,
+          disabled: !user.disabled,
+        });
+        showSuccessNotification({
+          title: user.disabled
+            ? t("user.action.enable.success", { defaultValue: "User enabled" })
+            : t("user.action.disable.success", { defaultValue: "User disabled" }),
+          message: user.disabled
+            ? t("user.action.enable.successDescription", { defaultValue: "User has been enabled" })
+            : t("user.action.disable.successDescription", { defaultValue: "User has been disabled" }),
+        });
+      } catch {
+        showErrorNotification({
+          title: t("common.notification.update.error"),
+          message: t("common.notification.update.error"),
+        });
+      }
+    });
+  };
+
+  const tooltipLabel = user.disabled
+    ? t("user.action.enable.description", { defaultValue: "Enable this user" })
+    : t("user.action.disable.description", { defaultValue: "Disable this user" });
+
+  return (
+    <Tooltip label={tooltipLabel} position="top">
+      <Button
+        onClick={handleToggle}
+        loading={isPending || changeDisabledMutation.isPending}
+        color={user.disabled ? "green" : "yellow"}
+        variant="light"
+      >
+        {user.disabled
+          ? t("user.action.enable.label", { defaultValue: "Enable user" })
+          : t("user.action.disable.label", { defaultValue: "Disable user" })}
+      </Button>
+    </Tooltip>
+  );
+};

apps/nextjs/src/app/[locale]/manage/users/[userId]/general/page.tsx

@@ -11,6 +11,7 @@ import { catchTrpcNotFound } from "~/errors/trpc-catch-error";
 import { createMetaTitle } from "~/metadata";
 import { canAccessUserEditPage } from "../access";
 import { DeleteUserButton } from "./_components/_delete-user-button";
+import { DisableUserButton } from "./_components/_disable-user-button";
 import { UserGeneralSettingsForm } from "./_components/_general-settings-form";
 import { UserProfileAvatarForm } from "./_components/_profile-avatar-form";
 import { ResetTours } from "./_components/_reset-tours";
@@ -96,6 +97,15 @@ export default async function EditUserPage(props: Props) {
       )}
 
       <DangerZoneRoot>
+        <DangerZoneItem
+          label={user.disabled ? t("user.action.enable.label") : t("user.action.disable.label")}
+          description={
+            user.disabled
+              ? t("management.page.user.action.enable.description", { defaultValue: "Re-enable access for this user" })
+              : t("management.page.user.action.disable.description", { defaultValue: "Prevent this user from logging in" })
+          }
+          action={<DisableUserButton user={user} />}
+        />
         <DangerZoneItem
           label={t("user.action.delete.label")}
           description={t("user.action.delete.description")}

apps/nextjs/src/app/[locale]/manage/users/_components/user-list.tsx

@@ -1,7 +1,7 @@
 "use client";
 
 import { useMemo } from "react";
-import { Anchor, Group, Text, Tooltip } from "@mantine/core";
+import { Anchor, Badge, Group, Text, Tooltip } from "@mantine/core";
 import { IconCheck } from "@tabler/icons-react";
 import type { MRT_ColumnDef } from "mantine-react-table";
 import { MantineReactTable } from "mantine-react-table";
@@ -52,6 +52,15 @@ export const UserListComponent = ({ initialUserList }: UserListComponentProps) =
           </Group>
         ),
       },
+      {
+        accessorKey: "disabled",
+        header: t("user.field.status.label", { defaultValue: "Status" }),
+        size: 100,
+        Cell: ({ row }) =>
+          row.original.disabled ? (
+            <Badge color="red">{t("user.field.status.disabled", { defaultValue: "Disabled" })}</Badge>
+          ) : null,
+      },
     ],
     [t],
   );