Add USB checkout system and SSO profile page

New Features:
- USB Device checkout/check-in system with barcode scanning
  - displayusb.asp: List all USB devices with status
  - addusb.asp: Add new USB devices via barcode scan
  - checkout_usb.asp/savecheckout_usb.asp: Check out USB to SSO
  - checkin_usb.asp/savecheckin_usb.asp: Check in with wipe confirmation
  - usb_history.asp: Full checkout history with filters
  - api_usb.asp: JSON API for AJAX lookups
- displayprofile.asp: SSO profile page showing user info and USB history
- Date/time format changed to 12-hour (MM/DD/YYYY h:mm AM/PM)
- SSO links in USB history now link to profile page via search

Database:
- New machinetypeid 44 for USB devices
- New usb_checkouts table for tracking checkouts

Cleanup:
- Removed v2 folder (duplicate/old files)
- Removed old debug/test files
- Removed completed migration documentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

addmachine.asp

@@ -402,7 +402,7 @@
                         <option value="">-- None --</option>
 <%
 	Dim rsControlPCs
-	strSQL = "SELECT machineid, machinenumber, hostname FROM machines WHERE pctypeid IS NOT NULL AND isactive = 1 ORDER BY machinenumber ASC"
+	strSQL = "SELECT machineid, machinenumber, hostname FROM machines WHERE machinetypeid IN (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43) AND isactive = 1 ORDER BY machinenumber ASC"
 	Set rsControlPCs = objconn.Execute(strSQL)
 	While Not rsControlPCs.EOF
 		Dim controlPCDisplay