feat(dev): add 'magic' subcommand to dev.sh for RebreakMagic macOS app

./dev.sh magic            - xcodegen + xcodebuild Release + relaunch
./dev.sh magic --debug    - Debug-Config
./dev.sh magic --xcode    - Only generate project + open Xcode
./dev.sh magic --no-build - Skip build, just relaunch
./dev.sh magic --no-launch - Build only

Auto-checks for ~/.config/rebreak-magic/config.json and points to template
if missing. Pre-kills any running RebreakMagic instance before launch.

apps/rebreak-native/dev.sh

@@ -11,6 +11,7 @@
 #   ./dev.sh clean               iOS: Nuclear clean (Pods, DerivedData, Archives)
 #   ./dev.sh install ios         Build Release + Install auf iPhone USB
 #   ./dev.sh install android     Build Debug APK + Install auf Android Device
+#   ./dev.sh magic               Build + Launch RebreakMagic.app (macOS Wizard)
 #
 # FLAGS (ios):
 #   --device                     Build auf physisches iPhone via USB (DEFAULT)
@@ -33,6 +34,12 @@
 #   --build                      + iOS build am Ende
 #   --xcode                      + Xcode öffnen am Ende
 #
+# FLAGS (magic):
+#   --no-build                   Nur launchen (App muss schon gebaut sein)
+#   --xcode                      Nur Xcode-Projekt generieren + öffnen
+#   --debug                      Debug-Konfiguration statt Release
+#   --no-launch                  Build, aber App nicht öffnen
+#
 # BEISPIELE:
 #   # Default: iPhone USB + Native-Build:
 #   ./dev.sh
@@ -61,6 +68,7 @@ set -euo pipefail
 SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 IOS_DIR="$SCRIPT_DIR/ios"
 ANDROID_DIR="$SCRIPT_DIR/android"
+MAGIC_DIR="$SCRIPT_DIR/../rebreak-magic-mac"
 
 # ═══════════════════════════════════════════════════════════════════════════
 # Color Output
@@ -421,6 +429,79 @@ cmd_install_android() {
   ok "Fertig"
 }
 
+cmd_magic() {
+  local BUILD=true
+  local LAUNCH=true
+  local XCODE_ONLY=false
+  local CONFIGURATION="Release"
+
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+      --no-build)  BUILD=false; shift ;;
+      --no-launch) LAUNCH=false; shift ;;
+      --xcode)     XCODE_ONLY=true; shift ;;
+      --debug)     CONFIGURATION="Debug"; shift ;;
+      *) die "Unbekannter Flag für 'magic': $1" ;;
+    esac
+  done
+
+  section "RebreakMagic (macOS Wizard)"
+
+  [[ -d "$MAGIC_DIR" ]] || die "rebreak-magic-mac nicht gefunden: $MAGIC_DIR"
+  command -v xcodebuild >/dev/null 2>&1 || die "xcodebuild fehlt — xcode-select --install"
+
+  cd "$MAGIC_DIR"
+
+  # Xcode-Projekt aus project.yml generieren (idempotent)
+  if command -v xcodegen >/dev/null 2>&1; then
+    log "xcodegen generate"
+    xcodegen generate >/dev/null
+  else
+    warn "xcodegen nicht installiert — überspringe project-regeneration (brew install xcodegen)"
+  fi
+
+  if $XCODE_ONLY; then
+    log "Opening Xcode..."
+    open -a Xcode "$MAGIC_DIR/RebreakMagic.xcodeproj"
+    ok "Xcode geöffnet — Cmd+R für Build & Run"
+    return 0
+  fi
+
+  local BUILD_DIR="$MAGIC_DIR/build"
+  local APP_PATH="$BUILD_DIR/Build/Products/$CONFIGURATION/RebreakMagic.app"
+
+  if $BUILD; then
+    log "xcodebuild ($CONFIGURATION)"
+    xcodebuild \
+      -project RebreakMagic.xcodeproj \
+      -scheme RebreakMagic \
+      -configuration "$CONFIGURATION" \
+      -derivedDataPath "$BUILD_DIR" \
+      build | tail -20
+    [[ -d "$APP_PATH" ]] || die "Build fehlgeschlagen — $APP_PATH nicht gefunden"
+    ok "Build erfolgreich: $APP_PATH"
+  else
+    [[ -d "$APP_PATH" ]] || die "App nicht vorhanden ($APP_PATH) — ohne --no-build neu starten"
+  fi
+
+  # Config-Check
+  local CONFIG_FILE="$HOME/.config/rebreak-magic/config.json"
+  if [[ ! -f "$CONFIG_FILE" ]]; then
+    warn "Config fehlt: $CONFIG_FILE"
+    echo "  → Template kopieren: cp $MAGIC_DIR/config.example.json $CONFIG_FILE"
+    echo "  → Dann editieren: backendBaseUrl=https://staging.rebreak.org"
+  fi
+
+  if $LAUNCH; then
+    log "Killing running RebreakMagic instance..."
+    pkill -x RebreakMagic 2>/dev/null || true
+    sleep 0.5
+    log "Launching $APP_PATH"
+    open "$APP_PATH"
+    ok "RebreakMagic gestartet"
+  fi
+}
+
 # ═══════════════════════════════════════════════════════════════════════════
 # Main
 # ═══════════════════════════════════════════════════════════════════════════
@@ -459,6 +540,10 @@ case "$COMMAND" in
     esac
     ;;
   
+  magic)
+    cmd_magic "$@"
+    ;;
+  
   -h|--help)
     awk '/^#!/{next} /^#/{sub(/^# ?/, ""); print; next} {exit}' "$0"
     exit 0
@@ -474,8 +559,10 @@ case "$COMMAND" in
     echo "  clean            iOS Nuclear Clean"
     echo "  install ios      Release-Build auf iPhone installieren"
     echo "  install android  Debug-APK auf Android installieren"
+    echo "  magic            Build + Launch RebreakMagic.app (macOS)"
     echo ""
     echo "Nutze --help für Details"
+
     exit 1
     ;;
 esac