Add dockerfile

Dockerfile

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+# Build stage
+FROM gradle:8.8-jdk21 AS build
+WORKDIR /home/gradle/src
+COPY --chown=gradle:gradle . .
+RUN gradle build --no-daemon
+
+# Package stage
+FROM eclipse-temurin:21-jre-jammy
+WORKDIR /app
+COPY --from=build /home/gradle/src/build/libs/*.jar app.jar
+EXPOSE 8080
+ENTRYPOINT ["java","-jar","app.jar"]

gitignore

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+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+/src/main/resources/serviceAccountKey.json
+output.txt
+
+# QdrantDB
+.qdrantStorage
+
+# AI
+/models