feat(skills): add jira-workflow, repo-map, docs-map, go-standards

- descriptions state WHEN each skill applies
- jira-workflow ships curl scripts reading TRACKER_URL/JIRA_TOKEN from env, no hardcoded secrets/URLs
- repo-map/docs-map defer values to session corporate context; company specifics left as TODO
- go-standards uses realistic Go defaults, company-specific bits marked TODO

skills/jira-workflow/scripts/link-mr.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# link-mr.sh <ISSUE_KEY> "<mr-url>" ["<title>"]
+# Attaches a merge request link to a tracker issue.
+# Default implementation posts a comment with the link (works on any Jira).
+# Reads TRACKER_URL and JIRA_TOKEN from the environment. No secrets are hardcoded.
+set -euo pipefail
+
+KEY="${1:?usage: link-mr.sh <ISSUE_KEY> \"<mr-url>\" [\"<title>\"]}"
+URL="${2:?usage: link-mr.sh <ISSUE_KEY> \"<mr-url>\" [\"<title>\"]}"
+TITLE="${3:-Merge request}"
+: "${TRACKER_URL:?set TRACKER_URL (or take the tracker address from the session corporate context)}"
+: "${JIRA_TOKEN:?set JIRA_TOKEN (tracker personal access token)}"
+
+BASE="${TRACKER_URL%/}"
+
+# Default: comment with the MR link.
+COMMENT="${TITLE}: ${URL}"
+exec "$(dirname "$0")/add-comment.sh" "$KEY" "$COMMENT"
+
+# TODO: если в компании используется remote issue link API, заменить на:
+#   POST ${BASE}/rest/api/2/issue/${KEY}/remotelink
+#   с телом {"object":{"url":"<URL>","title":"<TITLE>"}}