chore(claude): disable attribution

[devin-ai-integration]

Summary

Disable Claude Code's Co-Authored-By commit trailer and PR attribution by setting both to empty strings in dot_claude/settings.json.

+  "attribution": {
+    "commit": "",
+    "pr": ""
+  }

Link to Devin session: https://app.devin.ai/sessions/c5a2e37f435e42c08adf79c46ce59b0e
Requested by: @caipira113

[devin-ai-integration]

🤖 Devin AI Engineer

I'll be helping with this pull request! Here's what you should know:

✅ I will automatically:

• Address comments on this PR. Add '(aside)' to your comment to have me ignore it.
• Look at CI failures and help fix them

Note: I can only respond to comments from users who have write access to this repository.

⚙️ Control Options:

• Disable automatic comment, CI, and merge conflict monitoring