Fix dualpath propagation, getShopfloorPCs filtering, USB management, and printer features

- Fix dualpath PC propagation direction (Equipment->PC) in api.asp and db_helpers.asp
- Fix early exit in CreatePCMachineRelationship preventing propagation
- Fix getShopfloorPCs to filter machinetypeid IN (33,34,35) instead of >= 33
- Fix getShopfloorPCs to show equipment numbers via GROUP_CONCAT subquery
- Add detailed PropagateDP logging for dualpath debugging
- Default "Show on Shopfloor Dashboard" checkbox to checked in addnotification.asp
- Add USB label batch printing, single USB labels, and USB history pages
- Add printer supplies tracking and toner report enhancements
- Add uptime map visualization page
- Add dashboard/lobby display SQL migration
- Update CLAUDE.md with IIS 401 workaround documentation
- Update TODO.md

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

displayprinters.asp

@@ -43,9 +43,9 @@
               <table class="table table-hover">
                 <thead>
                   <tr>
+                    <th scope="col"></th>
                     <th scope="col"><i class="zmdi zmdi-pin"></i></th>
-                    <th scope="col"><i class="zmdi zmdi-attachment-alt"></i></th>
-                    <th scope="col">ID</th>
+                    <th scope="col"><i class="zmdi zmdi-download"></i></th>
                     <th scope="col">Machine</th>
                     <th scope="col">Vendor</th>
                     <th scope="col">Model</th>
@@ -92,23 +92,23 @@
 
 			Response.write("<tr>")
 
-			' Location column - just map icon
+			' Picture column (far left)
+			Response.Write("<td><a href='./displayprinter.asp?printerid=" & printer & "' title='Click to Display Printer Details'><img src='./images/printers/" & image & "' width='30px' height='30px'></a></td>")
+
+			' Location column - map icon
 			Response.write("<td>")
 			Response.write("<span class='location-link' data-machineid='" & machineid & "' style='cursor:pointer;'>")
 			Response.write("<i class='zmdi zmdi-pin'></i>")
 			Response.write("</span>")
 			Response.write("</td>")
 
-			' Drivers column
+			' Download column
 			If installpath <> "" Then
 				Response.write("<td><a href='./" & installpath & "'><i class='zmdi zmdi-download' title='Click to Download Specific Installer' style='color:#fff;'></i></a></td>")
 			Else
 				Response.write("<td><a href='./installprinter.asp?printerid=" & printer & "'><i class='zmdi zmdi-download' title='Click to Download Universal Driver Installer' style='color:#fff;'></i></a></td>")
 			End If
 
-			' ID column
-			Response.Write("<td><a href='./displayprinter.asp?printerid=" & printer & "' title='Click to Display Printer Details'><img src='./images/printers/" & image & "' width='30px' height='30px'></a></td>")
-
 			' Machine column - link to machine (or printer if location only)
 			' Check if location only (1 = location only)
 			isLocOnly = False