Switch to build + GitHub Release; fix Linux GTK deps

.github/workflows/publish.yml

@@ -1,4 +1,4 @@
-name: Publish to npm
+name: Build native binaries
 
 on:
   push:
@@ -36,6 +36,12 @@ jobs:
         with:
           targets: ${{ matrix.target }}
 
+      - name: Install system dependencies (Linux)
+        if: runner.os == 'Linux'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libgtk-3-dev libglib2.0-dev libgobject-2.0-dev libgio-2.0-dev libayatana-appindicator3-dev
+
       - name: Setup Node
         uses: actions/setup-node@v4
         with:
@@ -68,62 +74,25 @@ jobs:
           name: bindings-${{ matrix.target }}
           path: gelectron_core.*.node
 
-  publish:
-    name: Publish to npm
+  release:
+    name: Attach binaries to GitHub Release
     needs: build
     runs-on: ubuntu-latest
-    environment: npm-publish
+    permissions:
+      contents: write
 
     steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-
-      - name: Setup Node
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-          registry-url: 'https://registry.npmjs.org'
-
-      - name: Download all platform packages
+      - name: Download all binaries
         uses: actions/download-artifact@v4
         with:
           path: artifacts
           pattern: bindings-*
           merge-multiple: true
 
-      - name: Install dependencies
-        run: npm ci
+      - name: List binaries
+        run: ls -la artifacts/
 
-      - name: Assemble platform packages
-        shell: bash
-        run: |
-          for node in artifacts/*.node; do
-            base="$(basename "$node")"
-            case "$base" in
-              *.darwin-x64.node)       dir="npm/darwin-x64" ;;
-              *.darwin-arm64.node)     dir="npm/darwin-arm64" ;;
-              *.win32-x64-msvc.node)   dir="npm/win32-x64-msvc" ;;
-              *.win32-arm64-msvc.node) dir="npm/win32-arm64-msvc" ;;
-              *.linux-x64-gnu.node)    dir="npm/linux-x64-gnu" ;;
-              *.linux-arm64-gnu.node)  dir="npm/linux-arm64-gnu" ;;
-            esac
-            cp "$node" "$dir/$base"
-          done
-          echo "Assembled platform packages:"
-          ls -la npm/*/
-
-      - name: Publish platform packages
-        shell: bash
-        run: |
-          for dir in npm/*/; do
-            cd "$dir"
-            npm publish --access public
-            cd ../../
-          done
-
-      - name: Publish main package
-        run: |
-          npm run prepublishOnly
-          npm publish --access public
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+      - name: Upload binaries to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: artifacts/*.node