Refactor multi-tenant deployment: update port handling in scripts, add tenant port registration, and enhance Docker configurations

Co-authored-by: Copilot <copilot@github.com>

restart.sh

@@ -1,14 +1,35 @@
-#!/bin/bash
-
-# Nur die App neu bauen und starten, ohne den Tunnel oder die DB zu killen
-docker compose up -d --build app
-
-# Optional: Alles aufräumen, was nicht mehr gebraucht wird
-docker image prune -f
-
+#!/usr/bin/env bash
 set -euo pipefail
 
-SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd)"
+cd "$SCRIPT_DIR"
 
-"$SCRIPT_DIR/stop.sh" "$@"
-"$SCRIPT_DIR/start.sh" "$@"
+COMPOSE_FILE="docker-compose-multitenant.yml"
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        --multitenant)
+            COMPOSE_FILE="docker-compose-multitenant.yml"
+            shift
+            ;;
+        --singletenant)
+            COMPOSE_FILE="docker-compose.yml"
+            shift
+            ;;
+        *)
+            shift
+            ;;
+    esac
+done
+
+if ! command -v docker >/dev/null 2>&1; then
+    echo "Error: docker command not found. Install Docker first."
+    exit 1
+fi
+
+echo "Rebuilding and restarting app container using $COMPOSE_FILE..."
+docker compose -f "$COMPOSE_FILE" up -d --build app
+
+echo "Cleaning up unused Docker images..."
+docker image prune -f
+
+echo "App rebuild complete."