fix: replace PR creation with issue creation in refresh-snapshot workflow

[Copilot]

The refresh-azure-mcp-tool-snapshot.yml workflow was failing silently because GITHUB_TOKEN in this repo lacks pull-requests: write, causing the PR creation step to error out.

Changes

• Permissions: Swapped contents: write + pull-requests: write for issues: write
• Removed: Branch checkout, commit, and force-push steps — no longer needed
• Replaced: "Create or update pull request" step with two new steps:
  • Create issue — uses the GitHub Search API (not listForRepo) to detect duplicates reliably regardless of open-issue volume, then creates an issue with reproduction instructions
  • Assign to @copilot — runs gh issue edit --add-assignee "@copilot" via ASSIGN_ISSUE_TOKEN, matching the pattern in skill-factory.yml

- name: Create issue for snapshot update
  id: create_issue
  if: steps.check_changes.outputs.changed == 'true'
  uses: actions/github-script@...
  with:
    script: |
      const existing = await github.rest.search.issuesAndPullRequests({
        q: `repo:${owner}/${repo} is:issue is:open "${title}" in:title`,
        per_page: 1,
      });
      if (existing.data.total_count > 0) { return; }
      // create issue...

- name: Assign issue to Copilot
  if: steps.create_issue.outputs.issue-number != ''
  env:
    GH_TOKEN: ${{ secrets.ASSIGN_ISSUE_TOKEN }}
  run: gh issue edit ${{ steps.create_issue.outputs.issue-number }} --add-assignee "@copilot"

[Copilot]

Pull request overview

This PR updates the scheduled refresh-azure-mcp-tool-snapshot.yml workflow to stop trying to create/update a pull request (which fails due to missing pull-requests: write on GITHUB_TOKEN) and instead create a deduplicated issue with manual reproduction steps, then assign it to @copilot.

Changes:

• Replaced PR-creation logic with GitHub Search-based open-issue dedupe + new issue creation via actions/github-script.
• Removed branch/commit/force-push steps and added a lightweight “check for changes” gate.
• Added an assignment step using gh issue edit authenticated via ASSIGN_ISSUE_TOKEN.

Show a summary per file

File	Description
.github/workflows/refresh-azure-mcp-tool-snapshot.yml	Switches snapshot-refresh automation from PR creation to issue creation + assignment when snapshot content changes.

Copilot's findings

• Files reviewed: 1/1 changed files
• Comments generated: 1