second commit

scripts/scan_params.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python3
+import re
+
+with open('/home/yanghao05/Workspace/gochat/internal/router/router.go') as f:
+    content = f.read()
+
+all_params = re.findall(r':(\w+)', content)
+param_counts = {}
+for p in all_params:
+    param_counts[p] = param_counts.get(p, 0) + 1
+
+for p, count in sorted(param_counts.items(), key=lambda x: -x[1]):
+    print(f"  :{p} → {count} uses")
+
+print(f"\nTotal unique param names: {len(param_counts)}")