Feat/job scheduler

[misikdmytro]

Pull Request Checklist

Thank you for your contribution to GoTick! Please make sure you have completed the following steps before submitting your pull request:

Description

• [x] Clearly describe the problem your pull request solves or the feature it adds.
• [x] Link to the relevant issue(s) if applicable.

Type of Change

Please select the type of change that applies to this pull request:

• [x] 🔥 Feature: A new feature
• [ ] 🩹 Fix: A bug fix
• [ ] 📚 Documentation: Updates or additions to documentation
• [ ] 🎨 Style: Code style update (formatting, missing semi-colons, etc.)
• [ ] ♻️ Refactor: A code change that neither fixes a bug nor adds a feature
• [ ] 🚨 Test: Adding or updating tests
• [ ] ⬆️ Chore: Maintenance tasks (dependencies update, build scripts, etc.)

Checklist

• [x] My code follows the style guidelines of this project.
• [x] I have performed a self-review of my code.
• [ ] I have commented my code, particularly in hard-to-understand areas.
• [x] I have added tests that prove my fix is effective or that my feature works.
• [x] New and existing unit tests pass locally with my changes.
• [ ] I have made corresponding changes to the documentation.
• [x] I have checked my code and ensured it follows the Angular Commit Convention.

Related Issues

Link any related issues here:

• Fixes: #4

Additional Information

Provide any other information that is important to this PR, such as screenshots, benchmarks, or performance improvements.

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 91.08911% with 18 lines in your changes missing coverage. Please review.

Please upload report for BASE (develop@5d75e7f). Learn more about missing BASE report.

Files with missing lines	Patch %	Lines
config.go	59.25%	9 Missing and 2 partials :warning:
planner.go	90.38%	4 Missing and 1 partial :warning:
scheduler.go	97.84%	2 Missing :warning:

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #5 +/- ## ========================================== Coverage ? 91.08% ========================================== Files ? 7 Lines ? 202 Branches ? 0 ========================================== Hits ? 184 Misses ? 15 Partials ? 3 ```

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