fix(release): correct desktop artifact upload paths

Use bash for the Windows build step so Electrobun receives the canary env,
read Linux installer archives from the artifacts folder after Electrobun
moves them there, and compress the signed macOS bundle with the packaged
zig-zstd binary.

Co-Authored-By: chatgpt-codex-connector[bot] <199175422+chatgpt-codex-connector[bot]@users.noreply.github.com>

Author: Vrtak-CZ

.github/workflows/release-desktop.yml

@@ -124,6 +124,7 @@ jobs:
           "
 
       - name: Build Electrobun app
+        shell: bash
         env:
           ELECTROBUN_ENV: ${{ needs.release-meta.outputs.electrobun_env }}
         run: bun run build -- --env="$ELECTROBUN_ENV"
@@ -221,7 +222,7 @@ jobs:
           rm -rf "$STAGING_DIR"
 
           TARBALL_PATH="${BUILD_DIR}/Klovi.app.tar"
-          ZSTD_PATH="${APP_DIR}/Contents/MacOS/zig-zstd"
+          ZSTD_PATH="apps/desktop/node_modules/electrobun/dist-macos-arm64/zig-zstd"
           if [ ! -x "$ZSTD_PATH" ]; then
             echo "::error::Expected zig-zstd at $ZSTD_PATH"
             exit 1
@@ -346,10 +347,10 @@ jobs:
           TARGET_PREFIX="${BUILD_ENV}-linux-${ELECTROBUN_ARCH}"
           SOURCE_BUILD_DIR="apps/desktop/build/${SOURCE_PREFIX}"
 
-          INSTALLER=$(find "$SOURCE_BUILD_DIR" -maxdepth 1 -type f -name '*Setup*.tar.gz' | head -1)
+          INSTALLER=$(find apps/desktop/artifacts -maxdepth 1 -type f -name "${SOURCE_PREFIX}-*Setup*.tar.gz" | head -1)
           if [ -z "$INSTALLER" ]; then
-            echo "::error::Expected installer in $SOURCE_BUILD_DIR"
-            find apps/desktop/build -maxdepth 2 -type f -name '*.tar.gz' 2>/dev/null || true
+            echo "::error::Expected installer artifact for ${SOURCE_PREFIX}"
+            find apps/desktop/artifacts -maxdepth 1 -type f -name "${SOURCE_PREFIX}-*" 2>/dev/null || true
             exit 1
           fi