docs: correct auto-update platform support

[DeepDiver1975]

Summary

master counterpart of #753.

The Automatic Updater page documents auto-update as Windows-only, but that is inaccurate:

• macOS uses Sparkle and downloads/installs updates in-app (sparkleupdater_mac.mm).
• Linux AppImage builds use an in-app downloader/installer (appimageupdater.cpp).
• Only Linux distribution packages are notify-only (ocupdater.cpp).

Also clarifies the Windows flow as a silent download followed by a user-confirmed Restart required prompt.

🤖 Generated with Claude Code

[DeepDiver1975]

Review — docs: correct auto-update platform support

Verdict: clean (approve-quality). Accurate, AsciiDoc-clean, CI green.

Accuracy — verified against owncloud/client source

I cross-checked the platform claims against src/gui/updater/updater.cpp (Updater::create), which selects the updater backend exactly as the docs now describe:

• macOS (Q_OS_MAC + Sparkle) → SparkleUpdater — in-app download/install. ✅
• Windows → WindowsUpdater — silent background download, then the UpdateDownloadedWidget Restart now / later dialog → applyUpdateAndRestart(), with a manual-download fallback on failure. ✅ matches the rewritten Windows section.
• Linux AppImage (Utility::runningInAppImage()) → AppImageUpdater — in-app download/install + restart prompt. ✅
• Linux distro package (fallthrough) → PassiveUpdateNotifier — notify-only. ✅

So the previous "Windows-only" wording was genuinely wrong, and the new text correctly distinguishes the AppImage (in-app) vs distro-package (notify-only) Linux paths. No factual inaccuracies found in the platform claims.

Other checks

• AsciiDoc: clean — reuses existing {description} / {ini_name} attributes, backticked code (.deb/.rpm/MSI), *bold* for the dialog name; consistent with surrounding content. Build documentation + lint checks pass.
• Backport consistency: diff is identical to the 7.1 backport docs: correct auto-update platform support (7.1) #753.
• Changelog: repo maintains none (no changelog/ dir, no CHANGELOG.adoc/.md) → n/a.

Auto-merge: N/A — agent-authored PR (self-approval is blocked), so this is a review comment, not an approval. mergeStateStatus is BLOCKED pending an approving review from a human maintainer.

🤖 Automated PR review by Claude Code review agent.

[dj4oC]

Rewrites the Automatic Updater page: corrects it from "Windows-only" to documenting macOS (Sparkle) and Linux AppImage in-app updates, with Linux distro packages remaining notify-only, per the master/7.1 pair (#753).

Findings

Nothing blocking. Prose-only change, no links/xrefs touched, admonition and section structure preserved correctly. Not independently re-verified against owncloud/client source (out of scope here).

Verdict

Approved

🤖 Automated review by Claude Code

---

Generated by Claude Code