fix(release): add Rust target installation step for cross-compilation

.github/workflows/release.yml

@@ -209,6 +209,13 @@ jobs:
           pnpm i
           pnpm run prebuild ${{ matrix.target }}
 
+      - name: Add Rust Target
+        run: |
+          # Ensure cross target is installed for the pinned toolchain; fallback without explicit toolchain if needed
+          rustup target add ${{ matrix.target }} --toolchain 1.91.0 || rustup target add ${{ matrix.target }}
+          rustup target list --installed
+          echo "Rust target ${{ matrix.target }} installed."
+
       - name: Tauri build
         # 上游 5.24 修改了 latest.json 的生成逻辑，且依赖 tauri-plugin-update 2.10.0 暂未发布，故锁定在 0.5.23 版本
         uses: tauri-apps/tauri-action@v0.6.0
@@ -330,6 +337,13 @@ jobs:
             gcc-arm-linux-gnueabihf \
             g++-arm-linux-gnueabihf
 
+      - name: Add Rust Target
+        run: |
+          # Ensure cross target is installed for the pinned toolchain; fallback without explicit toolchain if needed
+          rustup target add ${{ matrix.target }} --toolchain 1.91.0 || rustup target add ${{ matrix.target }}
+          rustup target list --installed
+          echo "Rust target ${{ matrix.target }} installed."
+
       - name: Build for Linux
         run: |
           export PKG_CONFIG_ALLOW_CROSS=1
@@ -425,6 +439,13 @@ jobs:
           Remove-Item .\src-tauri\tauri.windows.conf.json
           Rename-Item .\src-tauri\webview2.${{ matrix.arch }}.json tauri.windows.conf.json
 
+      - name: Add Rust Target
+        run: |
+          # Ensure cross target is installed for the pinned toolchain; fallback without explicit toolchain if needed
+          rustup target add ${{ matrix.target }} --toolchain 1.91.0 || rustup target add ${{ matrix.target }}
+          rustup target list --installed
+          echo "Rust target ${{ matrix.target }} installed."
+
       - name: Tauri build
         id: build
         uses: tauri-apps/tauri-action@v0.6.0