Add: unoserver and more (#3108)

# Description of Changes

Please provide a summary of the changes, including:

- What was changed
- Why the change was made
- Any challenges encountered

Closes #(issue_number)

---

## Checklist

### General

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have read the [Stirling-PDF Developer
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md)
(if applicable)
- [ ] I have read the [How to add new languages to
Stirling-PDF](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md)
(if applicable)
- [ ] I have performed a self-review of my own code
- [ ] My changes generate no new warnings

### Documentation

- [ ] I have updated relevant docs on [Stirling-PDF's doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
(if functionality has heavily changed)
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

### UI Changes (if applicable)

- [ ] Screenshots or videos demonstrating the UI changes are attached
(e.g., as comments or direct attachments in the PR)

### Testing (if applicable)

- [ ] I have tested my changes locally. Refer to the [Testing
Guide](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/DeveloperGuide.md#6-testing)
for more details.

Dockerfile.dev

@@ -1,53 +1,54 @@
 # dockerfile.dev
 
 # Basisimage: Gradle mit JDK 17 (Debian-basiert)
-FROM gradle:8.12-jdk17
+FROM gradle:8.13-jdk17
 
 # Als Root-Benutzer arbeiten, um benötigte Pakete zu installieren
 USER root
 
+# Set GRADLE_HOME und füge Gradle zum PATH hinzu
+ENV GRADLE_HOME=/opt/gradle
+ENV PATH="$GRADLE_HOME/bin:$PATH"
+
 # Update und Installation zusätzlicher Pakete (Debian/Ubuntu-basiert)
 RUN apt-get update && apt-get install -y \
-  wget \
-  ca-certificates \
-  tzdata \
-  tini \
-  bash \
-  curl \
+  sudo \
   libreoffice \
   poppler-utils \
   qpdf \
+# settings.yml | tessdataDir: /usr/share/tesseract-ocr/5/tessdata
   tesseract-ocr \
   tesseract-ocr-eng \
-  fonts-dejavu \
-  fonts-noto \
-  python3 \
-  python3-pip \
+  fonts-terminus fonts-dejavu fonts-font-awesome fonts-noto fonts-noto-core fonts-noto-cjk fonts-noto-extra fonts-liberation fonts-linuxlibertine \
+  python3-uno \
   python3-venv \
+# ss -tln
+  iproute2 \
   && apt-get clean && rm -rf /var/lib/apt/lists/*
 
 # Setze die Environment Variable für setuptools
 ENV SETUPTOOLS_USE_DISTUTILS=local
 
 # Installation der benötigten Python-Pakete
-RUN python3 -m venv /opt/venv \
+RUN python3 -m venv --system-site-packages /opt/venv \
   && . /opt/venv/bin/activate \
-  && pip install --upgrade setuptools \
   && pip install --no-cache-dir WeasyPrint pdf2image pillow unoserver opencv-python-headless pre-commit
 
 # Füge den venv-Pfad zur globalen PATH-Variable hinzu, damit die Tools verfügbar sind
 ENV PATH="/opt/venv/bin:$PATH"
 
-# Erstelle notwendige Verzeichnisse und lege einen Nicht‑Root Benutzer an
-RUN mkdir -p /home/devuser/{configs,logs,customFiles,pipeline/watchedFolders,pipeline/finishedFolders} \
-  && adduser --disabled-password --gecos '' devuser \
-  && chown -R devuser:devuser /home/devuser
+COPY . /workspace
 
-RUN mkdir -p /home/devuser/logs /workspace/logs /workspace/scripts /workspace/src/main/resources \
+RUN adduser --disabled-password --gecos '' devuser \
   && chown -R devuser:devuser /home/devuser /workspace
+RUN echo "devuser ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/devuser \
+  && chmod 0440 /etc/sudoers.d/devuser
 
 # Setze das Arbeitsverzeichnis (wird später per Bind-Mount überschrieben)
 WORKDIR /workspace
 
+RUN chmod +x /workspace/.devcontainer/git-init.sh
+RUN sudo chmod +x /workspace/.devcontainer/init-setup.sh
+
 # Wechsel zum Nicht‑Root Benutzer
 USER devuser