Started base for optaplanner service

[SerenityCodes]

Resolved #17

Summary by CodeRabbit

• New Features

  • Introduced a new Dockerfile for containerizing the OptaPlanner application.
  • Added a complete Gradle configuration for building and running a Java CLI application.
  • Created a new Java class with a sample greeting method and entry point.
  • Defined library dependency management with versions for key libraries.

• Chores

  • Established consistent line ending conventions in the new .gitattributes file.
  • Enhanced the .gitignore to exclude unnecessary Java build artifacts.
  • Implemented Gradle Wrapper configuration for version management across environments.
  • Added shell and batch scripts for running Gradle in POSIX and Windows environments.

• Documentation

  • Introduced classpath configuration for the Java project to assist in IDE setup.

[coderabbitai[bot]]

Walkthrough

This update lays the groundwork for the OptaPlanner backend, introducing essential files and configurations for a Java project. Key additions include a Gradle build setup, Dockerfile for containerization, and classpath definitions. These changes aim to streamline development, enhance dependency management, and provide a solid starting point for further development of the backend functionality.

Changes

File(s)	Change Summary
.gitattributes, .gitignore	New files to manage line endings and ignore relevant Java build artifacts.
optaplanner/Dockerfile	New Dockerfile to define the environment for the OptaPlanner application using OpenJDK 21.
optaplanner/app/.classpath, build.gradle.kts	New classpath and build configuration files for managing dependencies and project structure.
optaplanner/app/src/main/java/me/serenitycodes/SchedulerMain.java	New Java class with a basic "Hello World!" application entry point.
optaplanner/gradle/libs.versions.toml, gradle-wrapper.properties	New configuration files for managing library versions and Gradle Wrapper settings.
optaplanner/gradlew, optaplanner/gradlew.bat	New Gradle startup scripts for POSIX and Windows environments, enhancing task execution.
optaplanner/settings.gradle.kts	New settings file for configuring the multi-project Gradle build with a root project name and subproject.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant SchedulerMain
    User->>SchedulerMain: Execute main method
    SchedulerMain->>SchedulerMain: Call getGreeting()
    SchedulerMain-->>User: Return "Hello World!"

Assessment against linked issues

Objective	Addressed	Explanation
Provide a starting point for OptaPlanner backend (#17)	✅

🐰 "In the fields where rabbits play,
We weave new code both night and day.
With Docker and Gradle, we build our nest,
A planner for tasks, we strive for the best!
Hops of joy as we greet the dawn,
Hello, world! A new code has been born!" 🐇

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