feat(skills): add manage-jira-releases skill

[shubh1112]

Summary

• Adds a new manage-jira-releases skill that enables creating, updating, listing, and releasing Jira project versions directly from MCP-connected clients
• Addresses the gap where users can set fix versions on issues but cannot create the versions themselves without switching to the Jira UI
• Follows existing skill patterns: YAML frontmatter, human-in-loop confirmation, structured workflow steps, edge case handling, and cross-skill integration guidance

Closes #66

Details

The skill supports:

• Create version — with name, description, start date, and release date
• List versions — view all versions in a project with their status
• Update version — modify description, dates, or name
• Release version — mark a version as released with appropriate date

References the following MCP tools:

• createJiraVersion
• getJiraProjectVersions
• updateJiraVersion
• getVisibleJiraProjects
• getAccessibleAtlassianResources

Test plan

• node scripts/validate-template.mjs passes with no errors
• Verify skill is discoverable via Claude Code / Cursor plugin
• Test createJiraVersion flow against a live Atlassian Cloud site
• Confirm human-in-loop prompts appear before any mutating action

[atlassian-cla-bot]

Thank you for your submission! Like many open source projects, we ask that you sign our CLA (Contributor License Agreement) before we can accept your contribution.
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❌shubh1112

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[jatinkrmalik]

Thank you for your submission! Like many open source projects, we ask that you sign our CLA (Contributor License Agreement) before we can accept your contribution. If your email is listed below, please ensure that you sign the CLA with the same email address. **The following users still need to sign our CLA:**❌shubh1112

Already signed the CLA? To re-check, try refreshing the page.

@shubh1112 Before we can review the pull request, you will need to sign the CLA here. 👆

[decompil3d]

@atlassian-cla-bot check

[decompil3d]

CLA signed. @jatinkrmalik you are good to proceed with review.

[shubh1112]

Could any of CODEOWNERS review this, please?

[zayd-gener8]

@jatinkrmalik can you or someone please review this as its super useful! Thank you!

[zayd-gener8]

Can someone review please? @shubh1112 @iosamaatlassian @SreeNerella @dvenkatesh07 @blakewang-atlassian @jvarghese2 @ekahinga @mustaphaturhan @jatinkrmalik

[jatinkrmalik]

Looking into it today.

[zayd-gener8]

@jatinkrmalik Any news?