fix(context): persist fallback compaction breaker

agent/codex_runtime.py

@@ -282,7 +282,14 @@ def _record_codex_app_server_compaction(
         # The app server has already completed a real compaction boundary. Its
         # usage update (when supplied) is therefore the same real-vs-real
         # effectiveness verdict used by the normal compression path.
-        if hasattr(compressor, "_verify_compaction_cleared_threshold"):
+        record_boundary = getattr(
+            type(compressor), "record_completed_compaction", None
+        )
+        if callable(record_boundary):
+            # Codex owns this summary. A prior Hermes deterministic-fallback
+            # flag must not leak into the native boundary's quality verdict.
+            record_boundary(compressor, used_fallback=False)
+        elif hasattr(compressor, "_verify_compaction_cleared_threshold"):
             compressor._verify_compaction_cleared_threshold = True
         if not getattr(turn, "token_usage_last", None):
             compressor.last_prompt_tokens = -1