Lowercase update-feed nupkgs in release assets

MediaHive-*-full.nupkg sorted between the capitalized Setup/AppImage
user downloads on the Gitea release page. Renamed to mediahive-* they
group with the wheel/sdist below the downloads; feed manifests
(RELEASES, releases.*.json, assets.*.json) are patched to match.

scripts/guibuild.py

@@ -390,9 +390,32 @@ def build_velopack(version: str) -> Path:
     )
     artifact.unlink(missing_ok=True)
     setup.rename(artifact)
+    rename_feed_packages(releases_dir)
     return artifact
 
 
+def rename_feed_packages(releases_dir: Path) -> None:
+    """Lowercase the update-feed nupkgs in place.
+
+    Gitea sorts release assets with capitals first: MediaHive-*-full.nupkg
+    listed right between the Setup/AppImage downloads invites confusion.
+    As mediahive-*-full.nupkg they group with the wheel/sdist instead.
+    The feed manifests reference the filename, so patch those too.
+    """
+    manifests = [
+        p
+        for pattern in ("RELEASES", "releases.*.json", "assets.*.json")
+        for p in releases_dir.glob(pattern)
+    ]
+    for nupkg in releases_dir.glob("MediaHive-*-full.nupkg"):
+        new_name = "mediahive-" + nupkg.name.removeprefix("MediaHive-")
+        for manifest in manifests:
+            text = manifest.read_text()
+            if nupkg.name in text:
+                manifest.write_text(text.replace(nupkg.name, new_name))
+        nupkg.rename(nupkg.with_name(new_name))
+
+
 def force_macos_user_install(pkg: Path) -> None:
     """Restrict the Velopack-generated pkg to per-user installs (~/Applications).