Remove .claude/settings.local.json and add .claude/ to .gitignore

This file should not be tracked in version control as it contains
local Claude Code settings specific to individual development environments.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: pvrk

.claude/settings.local.json

@@ -7,3 +7,4 @@ _repo.*/
 
 .openpublishing.buildcore.ps1
 .vscode/settings.json
+.claude/