console: add AppImage download link

packages/console/app/src/routes/download/[platform].ts

@@ -6,6 +6,7 @@ const assetNames: Record<string, string> = {
   "darwin-x64-dmg": "opencode-desktop-darwin-x64.dmg",
   "windows-x64-nsis": "opencode-desktop-windows-x64.exe",
   "linux-x64-deb": "opencode-desktop-linux-amd64.deb",
+  "linux-x64-appimage": "opencode-desktop-linux-amd64.AppImage",
   "linux-x64-rpm": "opencode-desktop-linux-x86_64.rpm",
 } satisfies Record<DownloadPlatform, string>
 

packages/console/app/src/routes/download/types.ts

@@ -1 +1 @@
-export type DownloadPlatform = `darwin-${"x64" | "aarch64"}-dmg` | "windows-x64-nsis" | `linux-x64-${"deb" | "rpm"}`
+export type DownloadPlatform = `darwin-${"x64" | "aarch64"}-dmg` | "windows-x64-nsis" | `linux-x64-${"deb" | "rpm" | "appimage"}`