Refactored plugin system logs + Plugin version resolver

[nil-malh]

📝 Description

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🔄 Type of Change

• ♻️ Refactoring / technical debt — no functional change

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✅ Pre-Merge Checklist

Code Quality

• My code follows the Palantir Java Format style (passes mvn spotless:check)
• I have added or updated Javadoc on public types and methods

Tests

• I have added unit tests that cover the new / changed behaviour
• All existing and new tests pass locally (mvn verify)
• JaCoCo line coverage ≥ 70 % is maintained
• Tests using Testcontainers are isolated and do not leave containers running

Licensing

• Apache 2.0 license header has been added to every new source file (using spotless)

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🧪 How to Test Locally

# 1. Build and run all tests (requires Docker for Testcontainers)
mvn verify

# 2. Check code style
mvn spotless:check

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📸 Screenshots / Logs

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📚 Additional Context

[github-actions]

📋 Unreleased Changelog Preview

This is what the next release notes will look like based on commits in this PR.

Changelog

All notable changes to this project will be documented in this file.

[Unreleased]

♻️ Refactoring

• Improve logging messages for PluginSystem and add PluginVersionResolver class

• Refactored plugin init logs

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Generated by git-cliff

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🔄 Run #142 · Sun, 09 Aug 2026 17:41:08 GMT

[github-actions]

✅ Test Results

	Metric	Count
✅	Passed	720
❌	Failed	0
⏭️	Skipped	0
📊	Total	720

✅ Coverage

	Type	Coverage	Covered / Total
📏	Lines	83.8%	1877 / 2240
🌿	Branches	72.9%	583 / 800
🔧	Methods	84.7%	387 / 457

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🔄 CI run #161 · Sun, 09 Aug 2026 17:44:43 GMT