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>

sql/add_iswinrm_column.sql

@@ -0,0 +1,15 @@
+-- ============================================================================
+-- FILE: add_iswinrm_column.sql
+-- PURPOSE: Add iswinrm column to machines table for tracking WinRM status
+-- DATE: 2025-12-05
+--
+-- USAGE: Run this on production database
+--   mysql -u root -p shopdb < add_iswinrm_column.sql
+-- ============================================================================
+
+-- Add iswinrm column after isvnc
+ALTER TABLE machines ADD COLUMN iswinrm BIT(1) NULL DEFAULT b'0' AFTER isvnc;
+
+-- Verify the column was added
+SELECT 'iswinrm column added successfully' AS status;
+SHOW COLUMNS FROM machines WHERE Field IN ('isvnc', 'iswinrm');