fix(pre-commit): autofix JSON formatting instead of failing

Add --autofix to pretty-format-json so the hook rewrites files in place
rather than requiring manual intervention. Also applies the resulting key
ordering fixes to settings.json files.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.pre-commit-config.yaml

@@ -27,6 +27,7 @@ repos:
         stages: ['pre-commit']
       - id: pretty-format-json
         stages: ['pre-commit']
+        args: [--autofix]
       - id: check-yaml
         stages: ['pre-commit']
       - id: trailing-whitespace