Standardize ASP filenames: remove underscores

Renamed 45 ASP files to follow lowercase concatenated naming convention:
- Direct handlers: save_machine_direct.asp -> savemachinedirect.asp
- USB files: checkin_usb.asp -> checkinusb.asp
- API files: api_usb.asp -> apiusb.asp
- Map files: network_map.asp -> networkmap.asp
- Printer files: printer_lookup.asp -> printerlookup.asp

Also:
- Updated 84+ internal references across all ASP and JS files
- Deleted 6 test/duplicate files (editmacine.asp, test_*.asp)
- Updated production migration guide with filename changes
- Added rename scripts for Linux (bash) and Windows (PowerShell)

checkduplicateprinters.asp

@@ -0,0 +1,58 @@
+<!--#include file="./includes/sql.asp"-->
+<%
+Response.Write("<h1>Check for Duplicate Printer Machines</h1>")
+
+Dim strSQL, rs
+
+' Find duplicates by machinenumber
+strSQL = "SELECT machinenumber, COUNT(*) as cnt " &_
+         "FROM machines " &_
+         "WHERE machinenumber LIKE '%-PRINTER' " &_
+         "GROUP BY machinenumber " &_
+         "HAVING COUNT(*) > 1 " &_
+         "ORDER BY cnt DESC, machinenumber"
+set rs = objConn.Execute(strSQL)
+
+Response.Write("<h3>Duplicate Machine Numbers:</h3>")
+Response.Write("<table border='1' style='border-collapse:collapse'>")
+Response.Write("<tr><th>Machine Number</th><th>Count</th></tr>")
+Dim hasDuplicates
+hasDuplicates = False
+While Not rs.EOF
+    hasDuplicates = True
+    Response.Write("<tr>")
+    Response.Write("<td>" & Server.HTMLEncode(rs("machinenumber") & "") & "</td>")
+    Response.Write("<td>" & rs("cnt") & "</td>")
+    Response.Write("</tr>")
+    rs.MoveNext
+Wend
+Response.Write("</table>")
+
+If Not hasDuplicates Then
+    Response.Write("<p style='color:green'>No duplicates found!</p>")
+End If
+rs.Close
+
+' Show all printer machines grouped
+Response.Write("<h3>All Printer Machines (grouped by name):</h3>")
+strSQL = "SELECT machinenumber, COUNT(*) as cnt, GROUP_CONCAT(machineid) as ids " &_
+         "FROM machines " &_
+         "WHERE machinetypeid = 15 " &_
+         "GROUP BY machinenumber " &_
+         "ORDER BY machinenumber"
+set rs = objConn.Execute(strSQL)
+Response.Write("<table border='1' style='border-collapse:collapse'>")
+Response.Write("<tr><th>Machine Number</th><th>Count</th><th>Machine IDs</th></tr>")
+While Not rs.EOF
+    Response.Write("<tr>")
+    Response.Write("<td>" & Server.HTMLEncode(rs("machinenumber") & "") & "</td>")
+    Response.Write("<td>" & rs("cnt") & "</td>")
+    Response.Write("<td>" & Server.HTMLEncode(rs("ids") & "") & "</td>")
+    Response.Write("</tr>")
+    rs.MoveNext
+Wend
+Response.Write("</table>")
+rs.Close
+
+objConn.Close
+%>