lots of changes that I don't think I made, must of been the pull

docker/backend/Dockerfile

@@ -0,0 +1,34 @@
+# Stage 1: Build the application (The Build Stage)
+# Use a Java SDK image with Maven pre-installed
+FROM maven:3.9-jdk-17-slim AS build
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy the Maven project files (pom.xml) first to leverage Docker layer caching
+COPY pom.xml .
+
+# Copy the source code
+COPY src ./src
+
+# Build the Spring Boot application, skipping tests to speed up the Docker build
+# This creates the executable JAR file in the 'target' directory
+RUN mvn clean package -DskipTests
+
+# Stage 2: Create the final lightweight image (The Runtime Stage)
+# Use a smaller Java Runtime Environment (JRE) image for a smaller footprint
+FROM openjdk:17-jre-slim
+
+# Set the working directory in the final image
+WORKDIR /app
+
+# Copy the built JAR file from the 'build' stage into the final image
+# The JAR file is typically named 'target/<your-app-name>-<version>.jar'
+# You may need to adjust the name if you have a non-standard pom.xml
+COPY --from=build /app/target/*.jar app.jar
+
+# Expose the default Spring Boot port
+EXPOSE 8080
+
+# Define the command to run the application
+ENTRYPOINT ["java", "-jar", "app.jar"]