docs: add branch structure and release process to CLAUDE.md

[gnodet]

Summary

• Documents the branch structure (master, 4.0.x, jline-3.x) and their purposes
• Documents the release process for both 4.x (tag-push) and 3.x (workflow_dispatch)
• Documents build wrapper differences between branches
• Documents backporting workflow

Summary by CodeRabbit

• Documentation
  • Updated documentation with a new "Branches and Releases" section providing comprehensive guidance on maintenance branch responsibilities for managing releases, build process mappings, version-specific release workflows with both automated tag-driven and manual input-driven execution procedures, and detailed backporting processes including cherry-picking, CI validation, branch merging, and release execution steps.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 5bc35b36-e3dd-4afb-8e1d-1ee7d84c2187

📥 Commits

Reviewing files that changed from the base of the PR and between bad4549 and 57d2211.

📒 Files selected for processing (1)

• CLAUDE.md

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📝 Walkthrough

Walkthrough

Adds a new "Branches and Releases" section to CLAUDE.md documenting maintenance branch roles for 4.x versus 3.x versions, mapping branches to build wrapper scripts, and specifying release procedures including tag-driven workflows for 4.x and workflow_dispatch-driven workflows for 3.x, plus a backporting process.

Changes

Cohort / File(s)	Summary
Documentation CLAUDE.md	Added "Branches and Releases" section detailing maintenance branch organization, build wrapper script mappings, version-specific release workflows (tag-driven for 4.x, workflow_dispatch for 3.x), and cherry-pick backporting procedures.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Poem

🐰 Branches and releases, now plain as can be,
Four-x and three-x workflows, for all eyes to see,
With tags and dispatches, each path shines so bright,
Documentation's the magic that makes future sprints light! ✨

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch add-claude-md

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud