V1 merge (#5193)

# 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/devGuide/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/devGuide/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/devGuide/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/devGuide/DeveloperGuide.md#6-testing)
for more details.

---------

Signed-off-by: dependabot[bot] <[email protected]>
Signed-off-by: Balázs Szücs <[email protected]>
Signed-off-by: stirlingbot[bot] <stirlingbot[bot]@users.noreply.github.com>
Co-authored-by: ConnorYoh <[email protected]>
Co-authored-by: Connor Yoh <[email protected]>
Co-authored-by: OUNZAR Aymane <[email protected]>
Co-authored-by: YAOU Reda <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: stirlingbot[bot] <195170888+stirlingbot[bot]@users.noreply.github.com>
Co-authored-by: Balázs Szücs <[email protected]>
Co-authored-by: Ludy <[email protected]>
Co-authored-by: tkymmm <[email protected]>
Co-authored-by: Peter Dave Hello <[email protected]>
Co-authored-by: albanobattistella <[email protected]>
Co-authored-by: PingLin8888 <[email protected]>
Co-authored-by: FdaSilvaYY <[email protected]>
Co-authored-by: Copilot <[email protected]>
Co-authored-by: OteJlo <[email protected]>
Co-authored-by: Angel <[email protected]>
Co-authored-by: Ricardo Catarino <[email protected]>
Co-authored-by: Luis Antonio Argüelles González <[email protected]>
Co-authored-by: Dawid Urbański <[email protected]>
Co-authored-by: Stephan Paternotte <[email protected]>
Co-authored-by: Leonardo Santos Paulucio <[email protected]>
Co-authored-by: hamza khalem <[email protected]>
Co-authored-by: IT Creativity + Art Team <[email protected]>
Co-authored-by: Reece Browne <[email protected]>
Co-authored-by: James Brunton <[email protected]>
Co-authored-by: Victor Villarreal <[email protected]>

docker/backend/Dockerfile.ultra-lite

@@ -1,5 +1,7 @@
 # Backend ultra-lite Dockerfile - Java Spring Boot with minimal dependencies and build stage
-# Build the application
+# ========================================
+# STAGE 1: Build stage - Gradle
+# ========================================
 FROM gradle:8.14-jdk21 AS build
 
 COPY build.gradle .
@@ -22,8 +24,10 @@ RUN DISABLE_ADDITIONAL_FEATURES=true \
     STIRLING_PDF_DESKTOP_UI=false \
     ./gradlew clean build -x spotlessApply -x spotlessCheck -x test -x sonarqube
 
-# Main stage
-FROM alpine:3.22.1@sha256:4bcff63911fcb4448bd4fdacec207030997caf25e9bea4045fa6c8c44de311d1
+# ========================================
+# STAGE 2: Runtime stage - Alpine minimal
+# ========================================
+FROM alpine:3.22.2@sha256:4b7ce07002c69e8f3d704a9c5d6fd3053be500b7f1c69fc0d80990c2ad8dd412
 
 ARG VERSION_TAG
 
@@ -43,13 +47,17 @@ ENV HOME=/home/stirlingpdfuser \
 # Copy necessary files
 COPY scripts/init-without-ocr.sh /scripts/init-without-ocr.sh
 COPY scripts/installFonts.sh /scripts/installFonts.sh
-COPY --from=build /app/app/core/build/libs/*.jar app.jar
-COPY --from=build /app/build/libs/restart-helper.jar restart-helper.jar
+COPY --from=build --chown=stirlingpdfuser:stirlingpdfgroup /app/app/core/build/libs/*.jar /app.jar
+COPY --from=build --chown=stirlingpdfuser:stirlingpdfgroup /app/build/libs/restart-helper.jar /restart-helper.jar
 
 # Set up necessary directories and permissions
-RUN echo "@testing https://dl-cdn.alpinelinux.org/alpine/edge/main" | tee -a /etc/apk/repositories && \
-    echo "@testing https://dl-cdn.alpinelinux.org/alpine/edge/community" | tee -a /etc/apk/repositories && \
-    echo "@testing https://dl-cdn.alpinelinux.org/alpine/edge/testing" | tee -a /etc/apk/repositories && \
+RUN apk add --no-cache bash \
+    && ln -sf /bin/bash /bin/sh \
+    && printf '%s\n' \
+      'https://dl-cdn.alpinelinux.org/alpine/edge/main' \
+      'https://dl-cdn.alpinelinux.org/alpine/edge/community' \
+      'https://dl-cdn.alpinelinux.org/alpine/edge/testing' \
+      > /etc/apk/repositories && \
     apk upgrade --no-cache -a && \
     apk add --no-cache \
         ca-certificates \
@@ -67,7 +75,8 @@ RUN echo "@testing https://dl-cdn.alpinelinux.org/alpine/edge/main" | tee -a /et
     chmod +x /scripts/*.sh && \
     addgroup -S stirlingpdfgroup && adduser -S stirlingpdfuser -G stirlingpdfgroup && \
     chown -R stirlingpdfuser:stirlingpdfgroup $HOME /scripts /pipeline /configs /customFiles /pipeline /tmp/stirling-pdf && \
-    chown stirlingpdfuser:stirlingpdfgroup /app.jar /restart-helper.jar
+    chown stirlingpdfuser:stirlingpdfgroup /app.jar /restart-helper.jar && \
+    ln -sf /bin/busybox /bin/sh
 
 # Set environment variables
 ENV ENDPOINTS_GROUPS_TO_REMOVE=CLI
@@ -76,4 +85,4 @@ EXPOSE 8080/tcp
 
 # Run the application
 ENTRYPOINT ["tini", "--", "/scripts/init-without-ocr.sh"]
-CMD ["java", "-Dfile.encoding=UTF-8", "-Djava.io.tmpdir=/tmp/stirling-pdf", "-jar", "/app.jar"]
+CMD []