Fix filter to match User-Name instead of Account

RADIUS packets have User-Name attribute, not Account.
Changed filters to use ~*req.User-Name for matching.
Added *log flag to first processor for debugging.

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

cgrates.json

@@ -84,7 +84,7 @@
 		{
 			"id": "CGRPAPAuth",
 			"filters": ["*string:~*vars.*radReqType:*radAuth"],
-			"flags": ["*authorize", "*attributes", "*accounts", "*continue"],
+			"flags": ["*authorize", "*attributes", "*accounts", "*continue", "*log"],
 			"request_fields": [
 				{"tag": "Category", "path": "*cgreq.Category", "type": "*constant", "value": "call"},
 				{"tag": "RequestType", "path": "*cgreq.RequestType", "type": "*constant", "value": "*prepaid", "mandatory": true},