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/test/qz/ws/substitutions/SubstitutionsTests.java

@@ -0,0 +1,19 @@
+package qz.ws.substitutions;
+
+import org.codehaus.jettison.json.JSONException;
+import org.codehaus.jettison.json.JSONObject;
+
+import java.io.IOException;
+
+public class SubstitutionsTests {
+    public static void main(String ... args) throws JSONException, IOException {
+        Substitutions substitutions = new Substitutions(
+                SubstitutionsTests.class.getResourceAsStream("resources/substitutions.json")
+        );
+        JSONObject base = substitutions.replace(
+                SubstitutionsTests.class.getResourceAsStream("resources/printRequest.json")
+        );
+
+        System.out.println(base);
+    }
+}

tray/test/qz/ws/substitutions/resources/printRequest.json

@@ -0,0 +1,67 @@
+{
+  "call": "print",
+  "params": {
+    "printer": {
+      "name": "PDFwriter"
+    },
+    "options": {
+      "bounds": null,
+      "colorType": "color",
+      "copies": 1,
+      "density": 0,
+      "duplex": false,
+      "fallbackDensity": null,
+      "interpolation": "bicubic",
+      "jobName": null,
+      "legacy": false,
+      "margins": 0,
+      "orientation": null,
+      "paperThickness": null,
+      "printerTray": null,
+      "rasterize": false,
+      "rotation": 0,
+      "scaleContent": true,
+      "size": {
+        "width": "4",
+        "height": "6"
+      },
+      "units": "in",
+      "forceRaw": false,
+      "encoding": null,
+      "spool": {}
+    },
+    "data": [
+      {
+        "type": "pixel",
+        "format": "pdf",
+        "flavor": "file",
+        "data": "https://demo.qz.io/assets/pdf_sample.pdf",
+        "options": {
+          "pageWidth": "8.5",
+          "pageHeight": "11",
+          "pageRanges": "",
+          "ignoreTransparency": false,
+          "altFontRendering": false
+        }
+      },
+      {
+        "type": "pixel",
+        "format": "image",
+        "flavor": "file",
+        "data": "https://demo.qz.io/assets/img/image_sample.png",
+      },
+      "^XA\n",
+      "^FO50,50^ADN,36,20^FDPRINTED WITH QZ 2.2.4-SNAPSHOT\n",
+      "^FS\n",
+      "^XZ\n"
+    ]
+  },
+  "signature": "",
+  "timestamp": 1713895560783,
+  "uid": "64t63d",
+  "position": {
+    "x": 720,
+    "y": 462.5
+  },
+  "signAlgorithm": "SHA512"
+}

tray/test/qz/ws/substitutions/resources/substitutions.json

@@ -0,0 +1,109 @@
+[
+  {
+    "use":{
+      "config": {
+        "size": {
+          "width": 100,
+          "height": 150
+        },
+        "units": "mm"
+      }
+    },
+    "for": {
+      "config": {
+        "size": {
+          "width": 4,
+          "height": 6
+        },
+        "units": "in"
+      }
+    }
+  },
+  {
+    "use": {
+      "printer": "PDF"
+    },
+    "for": {
+      "printer": "PDFwriter"
+    }
+  },
+  {
+    "use": {
+      "data": {
+        "options": {
+          "pageWidth": 8.5,
+          "pageHeight": 14
+        }
+      }
+    },
+    "for": {
+      "data": {
+        "options": {
+          "pageWidth": "8.5",
+          "pageHeight": "11"
+        }
+      }
+    }
+  },
+  {
+    "use": {
+      "query": "pdf"
+    },
+    "for": {
+      "query": "zzz"
+    }
+  },
+  {
+    "use": {
+      "config": {
+        "copies": 3
+      }
+    },
+    "for": {
+      "config": {
+        "copies": 1
+      }
+    }
+  },
+  {
+    "use": {
+      "printer": "PDFwriter"
+    },
+    "for": {
+      "caseSensitive": true,
+      "printer": "xps document writer"
+    }
+  },
+  {
+    "use": {
+      "data": {
+        "data": "https://yahoo.com"
+      }
+    },
+    "for": {
+      "data": {
+        "data": "https://demo.qz.io/assets/pdf_sample.pdf"
+      }
+    }
+  },
+  {
+    "use": {
+      "printer": "ZDesigner"
+    },
+    "for": {
+      "data": [ "^XA\n" ]
+    }
+  },
+  {
+    "use": {
+      "data": {
+        "type": "PIXEL"
+      }
+    },
+    "for": {
+      "data": {
+        "type": "pixel"
+      }
+    }
+  }
+]