complete i18n migration to /[locale]/ with EN+ES content

Full rewrite of the docs site under app/[locale]/ with next-intl
in localePrefix:"always" mode. Every page now exists at both
/en/<path> and /es/<path>; the root / shows a meta-refresh + JS
redirect to /<defaultLocale>/ so GitHub Pages serves something
on the apex URL.

Highlights:
- 107 doc pages migrated to file-per-page JSON namespaces under
  messages/en/ and messages/es/. Spanish content is fully
  translated (no copy-of-English placeholders).
- New documentation for the Active Suppressions section in the
  Settings tab and the per-event Dismiss dropdown in the Health
  Monitor modal.
- New screenshots: dismiss-duration-dropdown.png and an updated
  health-suppression-settings.png.
- Pagefind integrated for client-side search; index is built on
  every CI deploy (not committed).
- RSS feeds: per-locale at /<locale>/rss.xml plus root /rss.xml
  for backward compat.
- Removed the dead app/[locale]/guides/[slug]/ route — every
  guide now has its own static page and no markdown source
  remains.
- Fixed orphan link /guides/nvidia -> /guides/nvidia-manual in
  docs/hardware/nvidia-host.
- Removed obsolete components (footer2, calendar, drawer).

Verified locally with `npm ci && npm run build`: 2804 files in
out/, 231 pages indexed by pagefind, root redirect intact, both
locale roots and the new Active Suppressions docs render OK.

web/app/[locale]/guides/backup-cloud/page.tsx

@@ -0,0 +1,263 @@
+import type { Metadata } from "next"
+import { getTranslations, getMessages, setRequestLocale } from "next-intl/server"
+import { ExternalLink } from "lucide-react"
+import { DocHeader } from "@/components/ui/doc-header"
+import { Callout } from "@/components/ui/callout"
+import Image from "next/image"
+import CopyableCode from "@/components/CopyableCode"
+import Footer from "@/components/footer"
+
+export async function generateMetadata({
+  params,
+}: {
+  params: Promise<{ locale: string }>
+}): Promise<Metadata> {
+  const { locale } = await params
+  const t = await getTranslations({ locale, namespace: "guides.backupCloud.meta" })
+  return {
+    title: t("title"),
+    description: t("description"),
+    alternates: { canonical: "https://proxmenux.com/docs/guides/backup-cloud" },
+    openGraph: {
+      title: t("ogTitle"),
+      description: t("ogDescription"),
+      type: "article",
+      url: "https://proxmenux.com/docs/guides/backup-cloud",
+    },
+  }
+}
+
+export default async function BackupCloudGuide({
+  params,
+}: {
+  params: Promise<{ locale: string }>
+}) {
+  const { locale } = await params
+  setRequestLocale(locale)
+  const t = await getTranslations({ locale, namespace: "guides.backupCloud" })
+
+  const messages = (await getMessages({ locale })) as unknown as {
+    guides: { backupCloud: {
+      intro: { steps: string[] }
+      createDir: { configItems: string[] }
+      mount: { mountItems: string[] }
+      retention: { starterItems: string[] }
+      troubleshoot: { items: string[] }
+    } }
+  }
+  const introSteps = messages.guides.backupCloud.intro.steps
+  const configItems = messages.guides.backupCloud.createDir.configItems
+  const mountItems = messages.guides.backupCloud.mount.mountItems
+  const starterItems = messages.guides.backupCloud.retention.starterItems
+  const troubleItems = messages.guides.backupCloud.troubleshoot.items
+
+  const code = (chunks: React.ReactNode) => <code>{chunks}</code>
+  const strong = (chunks: React.ReactNode) => <strong>{chunks}</strong>
+
+  const pbsLink = (chunks: React.ReactNode) => (
+    <a
+      href="https://www.proxmox.com/proxmox-backup-server"
+      target="_blank"
+      rel="noopener noreferrer"
+      className="text-blue-700 hover:underline inline-flex items-center gap-1"
+    >
+      {chunks}
+      <ExternalLink className="w-3 h-3" />
+    </a>
+  )
+  const rcloneLink = (chunks: React.ReactNode) => (
+    <a
+      href="https://rclone.org"
+      target="_blank"
+      rel="noopener noreferrer"
+      className="text-blue-700 hover:underline inline-flex items-center gap-1"
+    >
+      {chunks}
+      <ExternalLink className="w-3 h-3" />
+    </a>
+  )
+  const remoteSetupLink = (chunks: React.ReactNode) => (
+    <a
+      href="https://rclone.org/remote_setup/"
+      target="_blank"
+      rel="noopener noreferrer"
+      className="text-blue-700 hover:underline inline-flex items-center gap-1"
+    >
+      {chunks}
+      <ExternalLink className="w-3 h-3" />
+    </a>
+  )
+  const providerDocsLink = (chunks: React.ReactNode) => (
+    <a
+      href="https://rclone.org/docs/"
+      target="_blank"
+      rel="noopener noreferrer"
+      className="text-blue-700 hover:underline inline-flex items-center gap-1"
+    >
+      {chunks}
+      <ExternalLink className="w-3 h-3" />
+    </a>
+  )
+
+  return (
+    <div className="min-h-screen bg-white text-gray-900 pt-16 flex flex-col">
+      <div className="container mx-auto px-4 pt-6 pb-16 flex-grow" style={{ maxWidth: "980px" }}>
+      <DocHeader
+        title={t("header.title")}
+        description={t("header.description")}
+        section={t("header.section")}
+        estimatedMinutes={15}
+      />
+
+      <Callout variant="info" title={t("intro.pbsCalloutTitle")}>
+        {t.rich("intro.pbsCalloutBody", { strong, code, pbsLink })}
+      </Callout>
+
+      <h2 className="text-2xl font-semibold mt-10 mb-4 text-gray-900">{t("intro.stepsTitle")}</h2>
+      <ol className="list-decimal pl-6 mb-6 text-gray-800 leading-relaxed space-y-1">
+        {introSteps.map((_, idx) => (
+          <li key={idx}>{t(`intro.steps.${idx}`)}</li>
+        ))}
+      </ol>
+
+      <Callout variant="warning" title={t("intro.vzdumpCalloutTitle")}>
+        {t.rich("intro.vzdumpCalloutBody", { strong, code })}
+      </Callout>
+
+      <h2 className="text-2xl font-semibold mt-10 mb-4 text-gray-900">{t("createDir.heading")}</h2>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("createDir.body", { strong, code })}</p>
+      <CopyableCode code={t.raw("createDir.mkdirCode") as string} className="my-4" />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("createDir.afterMkdir", { strong, code })}</p>
+      <Image
+        src="/guides/backup_cloud/imagen1.png"
+        alt={t("createDir.image1Alt")}
+        width={900}
+        height={500}
+        className="rounded shadow-lg my-6"
+        unoptimized
+      />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("createDir.configIntro")}</p>
+      <ul className="list-disc pl-6 mb-6 text-gray-800 leading-relaxed space-y-1">
+        {configItems.map((_, idx) => (
+          <li key={idx}>{t.rich(`createDir.configItems.${idx}`, { strong, code })}</li>
+        ))}
+      </ul>
+      <Image
+        src="/guides/backup_cloud/imagen2.png"
+        alt={t("createDir.image2Alt")}
+        width={900}
+        height={500}
+        className="rounded shadow-lg my-6"
+        unoptimized
+      />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("createDir.afterConfig", { strong })}</p>
+      <Image
+        src="/guides/backup_cloud/imagen3.png"
+        alt={t("createDir.image3Alt")}
+        width={900}
+        height={500}
+        className="rounded shadow-lg my-6"
+        unoptimized
+      />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("createDir.afterAdd")}</p>
+
+      <h2 className="text-2xl font-semibold mt-10 mb-4 text-gray-900">{t("installRclone.heading")}</h2>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("installRclone.body", { rcloneLink })}</p>
+      <CopyableCode code={t.raw("installRclone.installCode") as string} className="my-4" />
+
+      <Callout variant="info" title={t("installRclone.newerCalloutTitle")}>
+        <p className="mb-2">{t("installRclone.newerCalloutBody")}</p>
+        <CopyableCode code={t.raw("installRclone.newerCode") as string} className="my-2" />
+      </Callout>
+
+      <h3 className="text-xl font-semibold mt-8 mb-3 text-gray-900">{t("installRclone.tunnelHeading")}</h3>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("installRclone.tunnelBody", { remoteSetupLink })}</p>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("installRclone.tunnelFrom", { strong, code })}</p>
+      <CopyableCode code={t.raw("installRclone.tunnelCode") as string} className="my-4" />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("installRclone.tunnelAfter")}</p>
+
+      <h3 className="text-xl font-semibold mt-8 mb-3 text-gray-900">{t("installRclone.runHeading")}</h3>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("installRclone.runBody")}</p>
+      <CopyableCode code={t.raw("installRclone.runCode") as string} className="my-4" />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("installRclone.runAfter", { providerDocsLink })}</p>
+      <CopyableCode code={t.raw("installRclone.authPrompt") as string} className="my-4" />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("installRclone.authAfter", { strong })}</p>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("installRclone.nameRemote", { code })}</p>
+
+      <h2 className="text-2xl font-semibold mt-10 mb-4 text-gray-900">{t("mount.heading")}</h2>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("mount.body", { code })}</p>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("mount.mountIntro")}</p>
+      <CopyableCode code={t.raw("mount.mountCode") as string} className="my-4" />
+      <ul className="list-disc pl-6 mb-6 text-gray-800 leading-relaxed space-y-1">
+        {mountItems.map((_, idx) => (
+          <li key={idx}>{t.rich(`mount.mountItems.${idx}`, { code })}</li>
+        ))}
+      </ul>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("mount.mountFootnote", { strong })}</p>
+
+      <h2 className="text-2xl font-semibold mt-10 mb-4 text-gray-900">{t("systemd.heading")}</h2>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("systemd.body", { code })}</p>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("systemd.createIntro")}</p>
+      <CopyableCode code={t.raw("systemd.createCode") as string} className="my-4" />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("systemd.pasteIntro")}</p>
+      <CopyableCode code={t.raw("systemd.unitCode") as string} className="my-4" />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("systemd.adjust", { code })}</p>
+      <CopyableCode code={t.raw("systemd.enableCode") as string} className="my-4" />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("systemd.verifyIntro")}</p>
+      <CopyableCode code={t.raw("systemd.verifyCode") as string} className="my-4" />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("systemd.verifyAfter", { code })}</p>
+
+      <Callout variant="info" title={t("systemd.vfsCalloutTitle")}>
+        {t.rich("systemd.vfsCalloutBody", { code })}
+      </Callout>
+
+      <h2 className="text-2xl font-semibold mt-10 mb-4 text-gray-900">{t("configureBackup.heading")}</h2>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("configureBackup.body", { strong })}</p>
+      <Image
+        src="/guides/backup_cloud/imagen5.png"
+        alt={t("configureBackup.image5Alt")}
+        width={900}
+        height={500}
+        className="rounded shadow-lg my-6"
+        unoptimized
+      />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("configureBackup.after")}</p>
+      <Image
+        src="/guides/backup_cloud/imagen6.png"
+        alt={t("configureBackup.image6Alt")}
+        width={900}
+        height={500}
+        className="rounded shadow-lg my-6"
+        unoptimized
+      />
+
+      <h2 className="text-2xl font-semibold mt-10 mb-4 text-gray-900">{t("retention.heading")}</h2>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("retention.body", { strong })}</p>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t.rich("retention.uiPath", { strong })}</p>
+      <Image
+        src="/guides/backup_cloud/imagen7.png"
+        alt={t("retention.image7Alt")}
+        width={900}
+        height={500}
+        className="rounded shadow-lg my-6"
+        unoptimized
+      />
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("retention.starterIntro")}</p>
+      <ul className="list-disc pl-6 mb-6 text-gray-800 leading-relaxed space-y-1">
+        {starterItems.map((_, idx) => (
+          <li key={idx}>{t(`retention.starterItems.${idx}`)}</li>
+        ))}
+      </ul>
+      <p className="mb-4 text-gray-800 leading-relaxed">{t("retention.adjust")}</p>
+
+      <h2 className="text-2xl font-semibold mt-10 mb-4 text-gray-900">{t("troubleshoot.heading")}</h2>
+      <ul className="list-disc pl-6 mb-6 text-gray-800 leading-relaxed space-y-2">
+        {troubleItems.map((_, idx) => (
+          <li key={idx}>{t.rich(`troubleshoot.items.${idx}`, { code, strong })}</li>
+        ))}
+      </ul>
+      </div>
+      <Footer />
+    </div>
+  )
+}