Vereinheitliche Stack-Steuerung auf scripts/lab.sh

Eine einzige Quelle der Wahrheit fuer alle Stack-Aktionen statt
doppelt gepflegter Verb-Tabellen in Makefile und PowerShell-Wrapper.

- scripts/lab.sh: zentraler Dispatcher (bootstrap/up/redeploy/
  proxy-reload/down/logs/reset/reset-hard/reset-origin)
- workshop.ps1: switch-Tabelle kollabiert zu Delegation an lab.sh
  (kein --remove-orphans-Drift mehr zwischen den Oberflaechen)
- Makefile entfernt: WSL/Ubuntu bringt make nicht standardmaessig
  mit, Doku-Verben (make X) passten nicht zur PowerShell-Mehrheit
- bootstrap.sh: Logik inline, redundante bootstrap-unix.sh und
  bootstrap-wsl.sh entfernt
- Doku/HTML: alle 32 "make X" -> "./scripts/lab.sh X", Prosa
  (macOS-make-Hinweis, PowerShell-Wrapper-Text) angepasst

Verifiziert: bootstrap -> proxy-reload -> redeploy -> reset laufen
end-to-end gegen den Stack, Basisrouten und Done-Checks gruen.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

scripts/workshop.ps1

@@ -17,17 +17,7 @@ if (-not $repoWslPath) {
   exit 1
 }
 
-switch ($Action) {
-  "bootstrap"    { $linuxCommand = "./scripts/bootstrap.sh" }
-  "up"           { $linuxCommand = "./scripts/compose.sh up -d --build" }
-  "redeploy"     { $linuxCommand = "./scripts/compose.sh up -d --build --remove-orphans && ./scripts/compose.sh restart reverse-proxy" }
-  "proxy-reload" { $linuxCommand = "./scripts/compose.sh restart reverse-proxy" }
-  "down"         { $linuxCommand = "./scripts/compose.sh down" }
-  "logs"         { $linuxCommand = "./scripts/compose.sh logs -f" }
-  "reset"        { $linuxCommand = "./scripts/reset-lab.sh" }
-  "reset-hard"   { $linuxCommand = "./scripts/reset-lab.sh --hard" }
-  "reset-origin" { $linuxCommand = "./scripts/reset-lab.sh --hard-origin" }
-}
+$linuxCommand = "./scripts/lab.sh $Action"
 
 $wslArgs = @()
 if ($Distro) {