[MTA] Broken links fixes for MTA docs

[mpershina]

Summary by CodeRabbit

• Documentation
  • Enhanced prerequisites documentation for running the containerless MTA CLI with clearer guidance on environment variables, Maven, Java, and Gradle setup requirements.
  • Updated and corrected documentation links across MTA topics for improved reference accuracy and accessibility.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: b6670f6c-e4ec-451b-a16e-8209680e61ef

📥 Commits

Reviewing files that changed from the base of the PR and between e600b61 and 6cb4439.

📒 Files selected for processing (4)

• docs/topics/mta-cli/proc_running-the-containerless-mta-cli.adoc
• docs/topics/mta-install/con_mta-rules.adoc
• docs/topics/mta-ui/con_intro-to-mta-ui.adoc
• docs/topics/release-notes-topics/ref_new-features-and-enhancements-8-0.adoc

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📝 Walkthrough

Walkthrough

This PR updates MTA documentation by standardizing documentation URLs to use templated {mta-URL} references, fixing a CLI installation link, and expanding prerequisite and procedure sections with additional setup guidance for containerless CLI deployment.

Changes

Cohort / File(s)	Summary
URL Standardization docs/topics/mta-ui/con_intro-to-mta-ui.adoc, docs/topics/release-notes-topics/ref_new-features-and-enhancements-8-0.adoc	Replaced hardcoded documentation URLs with templated {mta-URL} references for consistency and maintainability.
CLI Documentation Enhancement docs/topics/mta-cli/proc_running-the-containerless-mta-cli.adoc	Fixed CLI installation URL link path and expanded prerequisites with guidance on mvn PATH configuration, JAVA_HOME and JVM_MAX_MEM environment variables, and Gradle setup requirements.
Rules Documentation Link Update docs/topics/mta-install/con_mta-rules.adoc	Updated custom rules documentation link target from Rules Development Guide to Configuring and using rules page.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• MTA Install Guide Cross Reference Link Correction #327: Related documentation URL fixes and {mta-URL} template standardization efforts in the same documentation repository.

Suggested reviewers

• Pkylas007
• mguetta1

Poem

🐰 URLs once scattered, now align,
With templated paths that brightly shine,
Prerequisites expanded, guidance true,
Our docs are cleaner, fresh, and new! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly indicates the main purpose: fixing broken links in MTA documentation across multiple files.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch link-fixes

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