fix: add step-by-step instructions and direct URLs to drift report

[TooAngel]

Summary

Improve the drift detection output to make it clearer how to grant admin permissions for repository transfers.

Changes:

• Add direct link to the repository's access settings page (e.g., https://github.com/owner/repo/settings/access)
• Include step-by-step instructions in the drift report
• Show clickable URLs in CI error output when transfers are blocked

Before:

- **Action required**: Grant worlddriven admin access to TooAngel/repo
- See REPOSITORIES.md for instructions on granting permissions

After:

- **Action required**: Grant worlddriven admin access to `TooAngel/repo`

  **How to grant access:**
  1. Go to https://github.com/TooAngel/repo/settings/access
  2. Click "Add people" or "Add teams"
  3. Search for "worlddriven" and select the organization
  4. Set permission level to **Admin**
  5. Send the invitation - worlddriven will auto-accept

Test plan

• Create a PR with a repository transfer (PR feat: add migration-test repository for testing transfer automation #17)
• Verify the drift detection shows the new instructions
• Verify the CI error output includes the direct URL

[worlddriven]

🤖 Worlddriven Status

📊 Live Status Dashboard

🗓️ Merge Date: 2025-12-09 at 21:59:25 UTC (today)
📅 Started: 2025-12-08 at 11:42:17 UTC
⚡ Speed Factor: 0.14 (86% faster due to reviews)
✅ Positive votes: 12/14 contribution weight (coefficient: 0.86)
📈 Base Merge Time: 10 days → Current: 1 days

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📋 Recent Activity

• 2025-12-08, 11:42:26 - Pull request opened
• 2025-12-08, 11:42:27 - Pull request opened
• 2025-12-09, 22:51:51 - Pull request merged by worlddriven ✅

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This comment is automatically updated by worlddriven