OPS-1: startup scripts, autostart task, backup task, ops README, production config

- appsettings.Production.json: Photos:RootPath -> C:\gerbil-data\photos so
  photo files land on a stable host path when ASPNETCORE_ENVIRONMENT=Production
- Start-GerbilManager.ps1: creates data dirs, sets Production env, launches
  AppHost minimised; saves PID for Stop script
- Stop-GerbilManager.ps1: kills AppHost + Vite node processes by PID / port
- Register-AutoStart.ps1: Windows Scheduled Task on user logon (RunLevel Highest)
- Register-BackupTask.ps1: daily 03:00 Scheduled Task for Backup script
- deploy/README.md: Julian ops guide — start/stop commands, phone URL, DHCP
  reservation, firewall rule (Public-profile Wi-Fi), backup/restore procedures,
  prerequisites checklist, troubleshooting table (German)

Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>

deploy/scripts/Register-BackupTask.ps1

@@ -0,0 +1,69 @@
+<#
+.SYNOPSIS
+    Registriert den GerbilManager-Backup als taegliche geplante Aufgabe (03:00 Uhr).
+
+.DESCRIPTION
+    Erstellt eine geplante Aufgabe, die Backup-GerbilManager.ps1 taeglich um 03:00 Uhr
+    ausfuehrt. Backups werden 7 Tage lang aufbewahrt.
+
+.PARAMETER BackupTime
+    Uhrzeit fuer das taeliche Backup. Standard: 03:00
+
+.NOTES
+    Erfordert: PowerShell als Administrator ausfuehren
+    Aufgabenname: GerbilManager Backup
+#>
+#Requires -RunAsAdministrator
+param(
+    [string]$BackupTime = "03:00"
+)
+Set-StrictMode -Version Latest
+$ErrorActionPreference = "Stop"
+
+$taskName   = "GerbilManager Backup"
+$scriptPath = Join-Path $PSScriptRoot "Backup-GerbilManager.ps1"
+$logPath    = "C:\gerbil-data\backups\backup.log"
+
+if (-not (Test-Path $scriptPath)) {
+    Write-Error "Backup-Skript nicht gefunden: $scriptPath"
+    exit 1
+}
+
+# Backup-Verzeichnis vorab anlegen
+New-Item -ItemType Directory -Force -Path "C:\gerbil-data\backups" | Out-Null
+
+Write-Host "Registriere Backup-Aufgabe '$taskName' (taeglich $BackupTime)..."
+
+$action = New-ScheduledTaskAction `
+    -Execute "powershell.exe" `
+    -Argument "-NonInteractive -WindowStyle Hidden -ExecutionPolicy Bypass -File `"$scriptPath`" >> `"$logPath`" 2>&1"
+
+$trigger = New-ScheduledTaskTrigger -Daily -At $BackupTime
+
+$settings = New-ScheduledTaskSettingsSet `
+    -ExecutionTimeLimit (New-TimeSpan -Hours 1) `
+    -StartWhenAvailable `
+    -WakeToRun `
+    -MultipleInstances IgnoreNew
+
+$principal = New-ScheduledTaskPrincipal `
+    -UserId $env:USERNAME `
+    -LogonType Interactive `
+    -RunLevel Highest
+
+Unregister-ScheduledTask -TaskName $taskName -Confirm:$false -ErrorAction SilentlyContinue
+
+Register-ScheduledTask `
+    -TaskName $taskName `
+    -Action $action `
+    -Trigger $trigger `
+    -Settings $settings `
+    -Principal $principal `
+    -Description "Taegiches Backup der GerbilManager-Datenbank und Fotos um $BackupTime Uhr." `
+    -Force | Out-Null
+
+Write-Host "Backup-Aufgabe registriert: '$taskName'"
+Write-Host "Backups werden taeglich um $BackupTime Uhr nach C:\gerbil-data\backups\ gesichert."
+Write-Host "Protokoll: $logPath"
+Write-Host ""
+Write-Host "Backup jetzt testen: & `"$scriptPath`""