Consolidate all PowerShell scripts and fix production issues

Scripts added to shopdb/scripts/:
- Backup-GERegistry.ps1
- Get-InstalledApps.ps1
- Install-AssetCollectionSchedule.ps1
- Setup-WinRM.ps1
- Test-API-Connection.ps1

Updates to existing scripts:
- Update-PC-Minimal.ps1: Added SSL bypass, added 8003 to Part Marker machines
- Update-ShopfloorPCs-Remote.ps1: Added SSL bypass, added 8003 to Part Marker machines

Part Marker machine numbers now include: 0612, 0613, 0615, 8003

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

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

scripts/Get-InstalledApps.ps1

@@ -0,0 +1,5 @@
+Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*", "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*" |
+    Where-Object { $_.DisplayName } |
+    Select-Object DisplayName, DisplayVersion, Publisher |
+    Sort-Object DisplayName |
+    Format-Table -AutoSize