CodeHarbor v0.4.0

Warning

The Android assets in this release cannot be installed.
CodeHarbor-0.4.0-android-arm64-unsigned.apk carries no signature, so Android
rejects it with "App not installed as package appears to be invalid". The
.aab is likewise unsigned. This is a packaging defect in the release
workflow, now fixed on main: Android packages are signed and publish
refuses to upload an APK without a signature block. A signed build will follow
in the next release. The desktop assets are unaffected.

What's Changed

• Log the probe's silent branches; keep the old remote service usable when an update fails by @yichenchong in #17

Full Changelog: v0.3.3...v0.4.0