feat: Add Print Service Tray application with configuration and queue management

- Implemented PrintQueueService with job counting and snapshot retrieval.
- Created Form1 as the main entry point for the tray application.
- Developed ConfigurationForm for managing printer configurations and document types.
- Added models for printer configuration, queue status requests, and responses.
- Established ConfigurationService for loading and saving printer configurations.
- Introduced ServiceClient for IPC communication with the print service.
- Built TrayApplicationContext for managing the system tray icon and status updates.
- Added TODO.md for tracking remaining work and future enhancements.

PrintServiceTray/Models/QueueStatusResponse.cs

@@ -0,0 +1,19 @@
+namespace PrintServiceTray.Models;
+
+public class QueueStatusResponse
+{
+    public bool Success { get; set; }
+    public string? Message { get; set; }
+    public List<JobStatus> Jobs { get; set; } = new();
+}
+
+public class JobStatus
+{
+    public string Id { get; set; } = string.Empty;
+    public string FileName { get; set; } = string.Empty;
+    public string DocumentType { get; set; } = string.Empty;
+    public string Status { get; set; } = string.Empty;
+    public string? PrinterName { get; set; }
+    public int? CurrentPage { get; set; }
+    public int? TotalPages { get; set; }
+}