v1.6.0: Switch to user-logon task, migrate API to tsgwp00525 FQDN

- Install-ScheduledTask.ps1: run at user logon with visible UI (was startup
  with no UI), hardcode install path to C:\eDNC-Fix
- Migrate ShopDB API URL from http://geitshopdb/api.asp to
  https://tsgwp00525.rd.ds.ge.com/shopdb/api.asp in code and docs
- eDNC-SpecialCharFix.ps1: ~250 line rework (see diff)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Install-ScheduledTask.ps1

@@ -1,13 +1,13 @@
 #Requires -RunAsAdministrator
 <#
 .SYNOPSIS
-    Installs eDNC Special Character Fix as a scheduled task that runs at startup with admin rights.
+    Installs eDNC Special Character Fix as a scheduled task that runs at user logon with visible UI.
 
 .DESCRIPTION
     Creates a Windows scheduled task that:
-    - Runs at system startup
+    - Runs at user logon (visible window for debugging)
     - Runs with highest privileges (Administrator)
-    - Runs whether user is logged on or not
+    - Shows the monitoring UI to the logged-in user
     - Automatically restarts if it stops
 
     Monitors: C:\Dnc_Files\Q for *.pun files
@@ -29,7 +29,10 @@ param(
 )
 
 $TaskName = "eDNC Special Character Fix"
-$ScriptPath = Join-Path $PSScriptRoot "eDNC-SpecialCharFix.ps1"
+# IMPORTANT: Always use the local installation path, NOT $PSScriptRoot
+# This ensures the task runs from C:\eDNC-Fix even if installed from S:\ share
+$LocalInstallPath = "C:\eDNC-Fix"
+$ScriptPath = Join-Path $LocalInstallPath "eDNC-SpecialCharFix.ps1"
 
 if ($Uninstall) {
     Write-Host "Removing scheduled task '$TaskName'..." -ForegroundColor Yellow
@@ -38,9 +41,18 @@ if ($Uninstall) {
     exit 0
 }
 
-# Verify script exists
+# Verify local installation exists
+if (-not (Test-Path $LocalInstallPath)) {
+    Write-Host "[ERROR] Local installation folder not found: $LocalInstallPath" -ForegroundColor Red
+    Write-Host ""
+    Write-Host "Please run Deploy.bat first to copy files to $LocalInstallPath" -ForegroundColor Yellow
+    exit 1
+}
+
 if (-not (Test-Path $ScriptPath)) {
     Write-Host "[ERROR] Script not found: $ScriptPath" -ForegroundColor Red
+    Write-Host ""
+    Write-Host "Please run Deploy.bat first to copy files to $LocalInstallPath" -ForegroundColor Yellow
     exit 1
 }
 
@@ -61,14 +73,14 @@ if ($existingTask) {
     Unregister-ScheduledTask -TaskName $TaskName -Confirm:$false
 }
 
-# Build the PowerShell command
-$Arguments = "-NoProfile -ExecutionPolicy Bypass -WindowStyle Hidden -File `"$ScriptPath`""
+# Build the PowerShell command (visible window for debugging)
+$Arguments = "-NoProfile -ExecutionPolicy Bypass -File `"$ScriptPath`""
 
 # Create the scheduled task
-$Action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument $Arguments -WorkingDirectory $PSScriptRoot
+$Action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument $Arguments -WorkingDirectory $LocalInstallPath
 
-# Trigger: At startup
-$Trigger = New-ScheduledTaskTrigger -AtStartup
+# Trigger: At user logon (shows UI to logged-in user)
+$Trigger = New-ScheduledTaskTrigger -AtLogOn
 
 # Settings
 $Settings = New-ScheduledTaskSettingsSet `
@@ -79,8 +91,8 @@ $Settings = New-ScheduledTaskSettingsSet `
     -RestartCount 3 `
     -ExecutionTimeLimit (New-TimeSpan -Days 9999)
 
-# Principal: Run as SYSTEM with highest privileges
-$Principal = New-ScheduledTaskPrincipal -UserId "SYSTEM" -LogonType ServiceAccount -RunLevel Highest
+# Principal: Run as the logged-in user with highest privileges (for visible UI)
+$Principal = New-ScheduledTaskPrincipal -GroupId "BUILTIN\Users" -RunLevel Highest
 
 # Register the task
 $Task = New-ScheduledTask -Action $Action -Trigger $Trigger -Settings $Settings -Principal $Principal -Description "Monitors DNC folder and removes invalid special characters (0xFF) from program files."
@@ -89,7 +101,8 @@ Register-ScheduledTask -TaskName $TaskName -InputObject $Task | Out-Null
 
 Write-Host "Scheduled task created successfully!" -ForegroundColor Green
 Write-Host ""
-Write-Host "The task will start automatically at system boot." -ForegroundColor White
+Write-Host "The task will start automatically when any user logs in." -ForegroundColor White
+Write-Host "A visible PowerShell window will show the monitoring UI." -ForegroundColor White
 Write-Host ""
 Write-Host "To start it now, run:" -ForegroundColor Yellow
 Write-Host "  Start-ScheduledTask -TaskName '$TaskName'"