Draft a first-contact orientation comment for a first-time contributor on a newly opened issue or PR on the configured `<upstream>` repo. Detects first-time authorship via the GitHub `author_association` field and drafts a welcome with contributing-guide link, community-norm pointers, and expected n
Draft a first-contact orientation comment for a first-time contributor on a newly opened issue or PR on the configured `<upstream>` repo. Detects first-time authorship via the GitHub `author_association` field and drafts a welcome with contributing-guide link, community-norm pointers, and expected next steps. Waits for explicit maintainer confirmation before posting. Does not post for repeat contr