add: init script

Dockerfile

@@ -18,6 +18,8 @@ WORKDIR /app
 # Copy the wait-for-it script into the container and make it executable
 COPY /script/wait-for-it.sh /wait-for-it.sh
 RUN chmod +x /wait-for-it.sh
+
+COPY /script/init_db.sql /docker-entrypoint-initdb.d/init_db.sql
 # Copy only the built JAR from the build stage into this new stage
 COPY --from=mvnbuild /app/target/letterpaw-soap-service-jar-with-dependencies.jar letterpaw-soap-service-jar-with-dependencies.jar