Add standalone build and packaging workflow docs/scripts

build/build_linux.sh

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+#!/bin/bash
+
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$ROOT_DIR"
+
+PYTHON_BIN="${PYTHON_BIN:-.venv/bin/python}"
+
+if [ ! -x "$PYTHON_BIN" ]; then
+    echo "❌ Python nicht gefunden: $PYTHON_BIN"
+    echo "💡 Erwartet wird eine Virtual Environment unter .venv"
+    exit 1
+fi
+
+echo "🐧 Erstelle Linux-Standalone mit PyInstaller..."
+"$PYTHON_BIN" -m pip install --upgrade pip pyinstaller
+
+"$PYTHON_BIN" -m PyInstaller \
+    --noconfirm \
+    --clean \
+    --name "PDFtoICS" \
+    --windowed \
+    --add-data "version.txt:." \
+    gui_wxpython.py
+
+echo "✅ Fertig: dist/PDFtoICS"

build/build_macos.sh

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+#!/bin/bash
+
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$ROOT_DIR"
+
+PYTHON_BIN="${PYTHON_BIN:-.venv/bin/python}"
+
+if [ ! -x "$PYTHON_BIN" ]; then
+    echo "❌ Python nicht gefunden: $PYTHON_BIN"
+    echo "💡 Erwartet wird eine Virtual Environment unter .venv"
+    exit 1
+fi
+
+echo "🍎 Erstelle macOS-Standalone mit PyInstaller..."
+"$PYTHON_BIN" -m pip install --upgrade pip pyinstaller
+
+"$PYTHON_BIN" -m PyInstaller \
+    --noconfirm \
+    --clean \
+    --name "PDFtoICS" \
+    --windowed \
+    --add-data "version.txt:." \
+    gui_wxpython.py
+
+echo "✅ Fertig: dist/PDFtoICS.app"

build/build_windows.cmd

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+@echo off
+setlocal
+
+cd /d "%~dp0\.."
+
+set "PYTHON_BIN=.venv\Scripts\python.exe"
+if not exist "%PYTHON_BIN%" (
+    echo ❌ Python nicht gefunden: %PYTHON_BIN%
+    echo 💡 Erwartet wird eine Virtual Environment unter .venv
+    exit /b 1
+)
+
+echo 🪟 Erstelle Windows-Standalone mit PyInstaller...
+"%PYTHON_BIN%" -m pip install --upgrade pip pyinstaller
+
+"%PYTHON_BIN%" -m PyInstaller ^
+  --noconfirm ^
+  --clean ^
+  --name "PDFtoICS" ^
+  --windowed ^
+  --add-data "version.txt;." ^
+  gui_wxpython.py
+
+echo ✅ Fertig: dist\PDFtoICS\PDFtoICS.exe

build/package_linux.sh

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+#!/bin/bash
+
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$ROOT_DIR"
+
+APP_DIR="dist/PDFtoICS"
+VERSION="$(tr -d '[:space:]' < version.txt)"
+OUT_DIR="release"
+ARCHIVE_NAME="PDFtoICS-linux-v${VERSION}.tar.gz"
+
+if [ ! -d "$APP_DIR" ]; then
+    echo "❌ Build-Ordner nicht gefunden: $APP_DIR"
+    echo "💡 Bitte zuerst ausführen: ./build/build_linux.sh"
+    exit 1
+fi
+
+mkdir -p "$OUT_DIR"
+
+echo "📦 Erstelle Archiv: $OUT_DIR/$ARCHIVE_NAME"
+tar -czf "$OUT_DIR/$ARCHIVE_NAME" -C dist PDFtoICS
+
+echo "✅ Fertig: $OUT_DIR/$ARCHIVE_NAME"

build/package_macos.sh

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+#!/bin/bash
+
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$ROOT_DIR"
+
+APP_BUNDLE="dist/PDFtoICS.app"
+VERSION="$(tr -d '[:space:]' < version.txt)"
+OUT_DIR="release"
+ARCHIVE_NAME="PDFtoICS-macos-v${VERSION}.zip"
+
+if [ ! -d "$APP_BUNDLE" ]; then
+    echo "❌ App-Bundle nicht gefunden: $APP_BUNDLE"
+    echo "💡 Bitte zuerst ausführen: ./build/build_macos.sh"
+    exit 1
+fi
+
+mkdir -p "$OUT_DIR"
+
+echo "📦 Erstelle Archiv: $OUT_DIR/$ARCHIVE_NAME"
+rm -f "$OUT_DIR/$ARCHIVE_NAME"
+(cd dist && zip -r "../$OUT_DIR/$ARCHIVE_NAME" "PDFtoICS.app" >/dev/null)
+
+echo "✅ Fertig: $OUT_DIR/$ARCHIVE_NAME"

build/package_windows.cmd

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+@echo off
+setlocal
+
+cd /d "%~dp0\.."
+
+set /p VERSION=<version.txt
+set "VERSION=%VERSION: =%"
+
+if not exist "dist\PDFtoICS\PDFtoICS.exe" (
+    echo ❌ Build-Ausgabe nicht gefunden: dist\PDFtoICS\PDFtoICS.exe
+    echo 💡 Bitte zuerst ausfuehren: build\build_windows.cmd
+    exit /b 1
+)
+
+if not exist "release" mkdir release
+
+set "ARCHIVE=release\PDFtoICS-windows-v%VERSION%.zip"
+if exist "%ARCHIVE%" del /q "%ARCHIVE%"
+
+echo 📦 Erstelle Archiv: %ARCHIVE%
+powershell -NoProfile -Command "Compress-Archive -Path 'dist\PDFtoICS\*' -DestinationPath '%ARCHIVE%'"
+if errorlevel 1 (
+    echo ❌ Konnte Archiv nicht erstellen
+    exit /b 1
+)
+
+echo ✅ Fertig: %ARCHIVE%