Replace machinetypeid 33-43 checks with pctypeid throughout codebase

- PCs now identified by pctypeid IS NOT NULL (not machinetypeid >= 33)
- Equipment identified by pctypeid IS NULL (not machinetypeid < 33)
- Updated 8 files: search.asp, savemachineedit.asp, displaymachine.asp,
  displaypc.asp, displaypcs.asp, machine_map.asp, displaymachines.asp, api.asp
- Simplified queries and removed redundant machinetypeid checks
- Updated all related comments to reflect new pattern

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

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

displaymachines.asp

@@ -82,15 +82,14 @@
 
 <%
 		' Build WHERE clause with optional BU filter
-		' NOTE: Filter on machines.machinetypeid to exclude PCs (33-43) and network devices (16-20)
-		' Equipment types are 1-15
+		' NOTE: pctypeid IS NULL filters out PCs; also exclude LocationOnly (1) and network devices (16-20)
 		Dim whereClause
 		whereClause = "models.machinetypeid = machinetypes.machinetypeid AND " &_
 		              "machines.modelnumberid = models.modelnumberid AND " &_
 		              "models.vendorid = vendors.vendorid AND " &_
 		              "machines.businessunitid = businessunits.businessunitID AND " &_
 		              "machines.isactive = 1 AND islocationonly=0 AND machines.pctypeid IS NULL AND " &_
-		              "models.machinetypeid NOT IN (1, 16, 17, 18, 19, 20, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)"
+		              "models.machinetypeid NOT IN (1, 16, 17, 18, 19, 20)"
 
 		' Add BU filter if specified
 		If filterBU <> "" And IsNumeric(filterBU) Then