Fix network device description/machinenotes display and edit

- Fix ADO cursor issue where reading rs("description") twice caused
  empty values (IsNull check consumed the field value)
- Change all device pages to read description field once using
  `description = rs("description") & ""` pattern
- Add deviceDescription variable in displaydevice.asp
- Fix machinetypeid mapping: IDF=17, Camera=18 (was swapped)
- Add model dropdown fix to include currently assigned model
- Add server application tracking feature
- Various other improvements and fixes

Files affected:
- displaydevice.asp, displaylocationdevice.asp
- deviceaccesspoint.asp, deviceserver.asp, deviceswitch.asp
- devicecamera.asp, deviceidf.asp
- savenetworkdevice.asp, networkdevices.asp

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

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

includes/zabbix.asp

@@ -1,6 +1,6 @@
-<!--#include file="config.asp"-->
 <%
 ' Zabbix API Configuration - uses ZABBIX_URL and ZABBIX_API_TOKEN from config.asp
+' NOTE: config.asp must be included by the calling page (via sql.asp) before this file
 
 ' Function to make HTTP POST request to Zabbix API with Bearer token
 Function ZabbixAPICall(jsonRequest)