updated docs, removed testing files, fixed logging

specs/001-persona-engine/contracts/persona-engine.schema.json

@@ -103,7 +103,7 @@
         },
         "path": {
           "type": "string",
-          "description": "Placeholder in committed artifacts: <LOG-OUTPUT-PATH>"
+          "description": "NDJSON output file for 'file'/'both' destinations. Defaults to <current-directory>/logs/persona-engine-audit.ndjson when unset."
         },
         "traceConditionValues": {
           "type": "boolean",