Add custom QZ Tray fork with pairing key authentication

- Custom fork of QZ Tray 2.2.x with certificate validation bypassed
- Implemented pairing key (HMAC) authentication as replacement
- Modified files: PrintSocketClient.java (certificate check disabled)
- New files: PairingAuth.java, PairingConfigDialog.java
- Excluded build artifacts (out/, lib/javafx*) from repository
- Library JARs included for dependency management

tray/.github/workflows/build.yaml

@@ -0,0 +1,60 @@
+name: build
+
+on: [push, pull_request]
+
+jobs:
+  ubuntu:
+    runs-on: [ubuntu-latest]
+    strategy:
+      matrix:
+        java: [11, 21]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'liberica'
+      - run: sudo apt-get install nsis makeself
+      - run: ant makeself
+      - run: sudo out/qz-tray-*.run
+      - run: /opt/qz-tray/qz-tray --version
+      - run: ant nsis
+
+  macos:
+    runs-on: [macos-latest]
+    strategy:
+      matrix:
+        java: [11, 21]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'liberica'
+      - run: brew install nsis makeself
+      - run: ant pkgbuild
+      - run: echo "Setting CA trust settings to 'allow' (https://github.com/actions/runner-images/issues/4519)"
+      - run: security authorizationdb read com.apple.trust-settings.admin > /tmp/trust-settings-backup.xml
+      - run: sudo security authorizationdb write com.apple.trust-settings.admin allow
+      - run: sudo installer -pkg out/qz-tray-*.pkg -target /
+      - run: echo "Restoring CA trust settings back to default"
+      - run: sudo security authorizationdb write com.apple.trust-settings.admin < /tmp/trust-settings-backup.xml
+      - run: "'/Applications/QZ Tray.app/Contents/MacOS/QZ Tray' --version"
+      - run: ant makeself
+      - run: ant nsis
+
+  windows:
+    runs-on: [windows-latest]
+    strategy:
+      matrix:
+        java: [11, 21]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'liberica'
+      - run: choco install nsis
+      - run: ant nsis
+      - run: Start-Process -Wait ./out/qz-tray-*.exe -ArgumentList "/S"
+      - run: "&'C:/Program Files/QZ Tray/qz-tray.exe' --wait --version|Out-Null"