chore(desktop): reorganize electron-builder config and refine packaging targets

apps/desktop/electron-builder.yml

@@ -1,6 +1,12 @@
 # yaml-language-server: $schema=https://raw.githubusercontent.com/electron-userland/electron-builder/refs/heads/master/packages/app-builder-lib/scheme.json
-appId: com.furtherverse.app
+appId: com.furtherverse.desktop
 productName: Furtherverse
+executableName: furtherverse
+
+npmRebuild: false
+asarUnpack:
+  - resources/**
+
 files:
   - "!**/.vscode/*"
   - "!src/*"
@@ -8,21 +14,28 @@ files:
   - "!{.env,.env.*,bun.lock}"
   - "!{tsconfig.json,tsconfig.node.json}"
   - "!{AGENTS.md,README.md,CHANGELOG.md}"
-asarUnpack:
-  - resources/**
-win:
-  extraResources:
-    - from: ../server/out/server-windows-x64.exe
-      to: server.exe
-nsis:
-  artifactName: ${productName}-${version}-setup.${ext}
+
+# macOS
 mac:
+  target:
+    - dmg
   category: public.app-category.productivity
   extraResources:
     - from: ../server/out/server-darwin-arm64
       to: server
 dmg:
-  artifactName: ${productName}-${version}.${ext}
+  artifactName: ${productName}-${version}-${os}-${arch}.${ext}
+
+# Windows
+win:
+  target: portable
+  extraResources:
+    - from: ../server/out/server-windows-x64.exe
+      to: server.exe
+portable:
+  artifactName: ${productName}-${version}-${os}-${arch}-Portable.${ext}
+
+# Linux
 linux:
   target:
     - AppImage
@@ -31,5 +44,4 @@ linux:
     - from: ../server/out/server-linux-x64
       to: server
 appImage:
-  artifactName: ${productName}-${version}.${ext}
-npmRebuild: false
+  artifactName: ${productName}-${version}-${os}-${arch}.${ext}