chore: add Claude Code local settings

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: ganisback

.claude/config.json

@@ -0,0 +1,6 @@
+{
+    "attribution": {
+      "commit": "Generated with AI\n\nCo-Authored-By: csghub-lite <csghub-lite@opencsg.com>",
+      "pr": ""
+    }
+  }