fix: report the real HaRP version from /info as a semver string

[oleksandr-nc]

By mistake current version that HaRP reports is wrong. Added a comment to not forget to update it.

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• The content of this PR was partly or fully generated using AI

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 1a889fde-be8b-4636-b4ce-ef6346675a41

📥 Commits

Reviewing files that changed from the base of the PR and between 090268b and 54fbc2e.

📒 Files selected for processing (1)

• haproxy_agent.py

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📝 Walkthrough

Walkthrough

The agent adds a HARP_VERSION constant set to "0.4.3" and updates the /info response to use this constant for its version field instead of the hardcoded 0.4 value.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: correcting the /info HaRP version output to a semver string.
Description check	✅ Passed	The description is related to the version-reporting fix and mentions the added reminder comment.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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