chore: Ignore auto-generated workflow tracking JSON files

Add .gitignore rule to exclude patterns/debugging/workflow_*.json files
which are auto-generated from workflow executions. These files accumulate
quickly (96+ files) and contain runtime tracking data that's already
consolidated into all_patterns.json.

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

Author: silversurfer562

.gitignore

@@ -131,6 +131,9 @@ patterns/security_demo/
 patterns/tech_debt/
 patterns/tech_debt_demo/
 
+# Auto-generated workflow tracking files
+patterns/debugging/workflow_*.json
+
 # Word temp files
 ~$*