Jira PR / MR links

Zero-token Node scripts for GitHub and GitLab: create the PR/MR, attach a Jira remote Web link, post or update a structured comment, and optionally fill empty issue fields.

Scripts live under this skill's scripts/ directory. Resolve that path from the installed skill root (agents already have it when reading this file):

SKILL="$(cd "$(dirname "$0")" && pwd)"   # or the absolute path to this skill root
node "$SKILL/scripts/create-pr-mr.js" …
node "$SKILL/scripts/link-pr-mr.js" …

Another skill that needs the link step invokes /rhdh-jira-link by name and lets this skill run its own scripts; it never calls into this directory by path.

Preferred: one-shot create (create-pr-mr.js)