Simplify artifact names: -macos-setup.pkg, -linux-setup.AppImage

Arch markers dropped except win64: macOS builds are arm64-only and we
ship a single Linux flavor.

README.md

@@ -9,7 +9,7 @@ Netflix style browsing of your local media archive. Supports keyboard, mouse and
 ## Getting Started
 
 - Windows: Download `*-win64-setup.exe` from the releases page and run it (no admin needed; auto-updates included). A `-win64-portable.zip` is also available.
-- macOS: Download `*-macos-arm64-setup.pkg` and install (auto-updates included).
+- macOS: Download `*-macos-setup.pkg` and install (auto-updates included).
 - Linux: Download the `.AppImage`, `chmod +x` it, and run. Alternatively install [UV](https://docs.astral.sh/uv/getting-started/installation/) and run directly with `uvx --from mediahive[gui] mediahive`.
 
 ## What It Does

scripts/guibuild.py

@@ -64,19 +64,13 @@ _VPK_STAGING = _build_cache_dir() / f"vpk-{_VPK_VERSION}"
 
 
 def _platform_zip_suffix() -> str:
-    machine = platform.machine().lower()
-    arch = {
-        "x86_64": "x64",
-        "amd64": "x64",
-        "arm64": "arm64",
-        "aarch64": "arm64",
-    }.get(machine, machine or "unknown")
-
+    # Only Windows keeps an arch marker (win64); macOS is arm64-only and we
+    # build just one Linux flavor, so -macos / -linux suffice.
     if sys.platform == "win32":
         return "win64"
     if sys.platform == "darwin":
-        return f"macos-{arch}"
-    return f"linux-{arch}"
+        return "macos"
+    return "linux"
 
 
 def fetch_ffmpeg() -> Path:

scripts/release.py

@@ -68,7 +68,7 @@ def load_token() -> str:
 # ---------------------------------------------------------------------------
 
 # Matches MediaHive-1.2.3-win64-portable.zip, MediaHive-1.2.3-win64-setup.exe,
-# MediaHive-1.2.3-macos-arm64-setup.pkg, MediaHive-1.2.3-linux-x64.AppImage, etc.
+# MediaHive-1.2.3-macos-setup.pkg, MediaHive-1.2.3-linux-setup.AppImage, etc.
 # Rejects dev/dirty versions like MediaHive-1.2.3.dev0+gabcd-win64-portable.zip
 _CLEAN_ARTIFACT_RE = re.compile(
     r"^MediaHive-(\d+(?:\.\d+)*)-([A-Za-z0-9._-]+)\.(?:zip|dmg|exe|pkg|AppImage)$"