ci: 移除 Linux ARM64 构建

ARM 模拟器构建太慢（1小时+），暂时移除 Linux ARM64 支持。
保留 macOS (ARM64/x64)、Windows (x64)、Linux (x64)。

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.github/workflows/release.yml

@@ -88,7 +88,6 @@ jobs:
             - **macOS (Intel)**: `proxycast_*_x64.dmg`
             - **Windows (64-bit)**: `proxycast_*_x64-setup.exe`
             - **Linux x64**: `proxycast_*_amd64.deb` / `proxycast_*_amd64.AppImage`
-            - **Linux ARM64**: `proxycast_*_arm64.deb` / `proxycast_*_arm64.AppImage`
 
             ### macOS 首次安装
 
@@ -103,82 +102,3 @@ jobs:
           releaseDraft: false
           prerelease: false
           args: --target ${{ matrix.target }}
-
-  # Linux ARM64 使用模拟 ARM runner 构建
-  build-linux-arm64:
-    runs-on: ubuntu-22.04
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Cache rust build artifacts
-        uses: Swatinem/rust-cache@v2
-        with:
-          workspaces: src-tauri
-          cache-on-failure: true
-
-      - name: Build app in ARM64 emulator
-        uses: pguyot/arm-runner-action@v2.6.5
-        with:
-          base_image: https://dietpi.com/downloads/images/DietPi_RPi5-ARMv8-Bookworm.img.xz
-          cpu: cortex-a72
-          bind_mount_repository: true
-          image_additional_mb: 10240
-          optimize_image: no
-          commands: |
-            # Prevent Rust from complaining about $HOME not matching eid home
-            export HOME=/root
-
-            # Workaround to CI worker being stuck on Updating crates.io index
-            export CARGO_REGISTRIES_CRATES_IO_PROTOCOL=sparse
-
-            # Install setup prerequisites
-            apt-get update -y --allow-releaseinfo-change
-            apt-get autoremove -y
-            apt-get install -y --no-install-recommends --no-install-suggests \
-              curl \
-              libwebkit2gtk-4.1-dev \
-              build-essential \
-              libssl-dev \
-              libgtk-3-dev \
-              libayatana-appindicator3-dev \
-              librsvg2-dev \
-              patchelf \
-              libfuse2 \
-              file
-
-            # Install Rust
-            curl https://sh.rustup.rs -sSf | sh -s -- -y
-            . "$HOME/.cargo/env"
-
-            # Install Node.js
-            curl -fsSL https://deb.nodesource.com/setup_20.x | bash
-            apt-get install -y nodejs
-
-            # Install frontend dependencies
-            npm ci
-
-            # Build the application
-            npm run tauri build -- --verbose
-
-      - name: Get app version
-        run: echo "APP_VERSION=$(jq -r .version src-tauri/tauri.conf.json)" >> $GITHUB_ENV
-
-      - name: Upload deb bundle to release
-        uses: softprops/action-gh-release@v1
-        with:
-          tag_name: ${{ github.event.inputs.version || github.ref_name }}
-          files: |
-            src-tauri/target/release/bundle/deb/*.deb
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Upload AppImage bundle to release
-        uses: softprops/action-gh-release@v1
-        with:
-          tag_name: ${{ github.event.inputs.version || github.ref_name }}
-          files: |
-            src-tauri/target/release/bundle/appimage/*.AppImage
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}