feat(db): mesh data model — meshes, members, invites, audit log

- pgSchema "mesh" with 4 tables isolating the peer mesh domain
- Enums: visibility, transport, tier, role
- audit_log is metadata-only (E2E encryption enforced at broker/client)
- Cascade on mesh delete, soft-delete via archivedAt/revokedAt

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/src/modules/user/settings/general/language-switcher.tsx

@@ -0,0 +1,36 @@
+"use client";
+
+import { useTranslation } from "@turbostarter/i18n";
+
+import { I18nControls } from "~/modules/common/i18n/controls";
+import {
+  SettingsCard,
+  SettingsCardContent,
+  SettingsCardDescription,
+  SettingsCardFooter,
+  SettingsCardHeader,
+  SettingsCardTitle,
+} from "~/modules/common/layout/dashboard/settings-card";
+
+export const LanguageSwitcher = () => {
+  const { t } = useTranslation("common");
+
+  return (
+    <SettingsCard>
+      <SettingsCardHeader>
+        <SettingsCardTitle>{t("language.label")}</SettingsCardTitle>
+        <SettingsCardDescription>
+          {t("language.description")}
+        </SettingsCardDescription>
+      </SettingsCardHeader>
+
+      <SettingsCardContent>
+        <div className="max-w-xs">
+          <I18nControls />
+        </div>
+      </SettingsCardContent>
+
+      <SettingsCardFooter>{t("language.info")}</SettingsCardFooter>
+    </SettingsCard>
+  );
+};