fix(logging): tighten Codex backend request ID prefix

internal/logging/gin_logger.go

@@ -26,7 +26,7 @@ var aiAPIPrefixes = []string{
 	"/v1/responses",
 	"/v1beta/models/",
 	"/api/provider/",
-	"/backend-api/codex",
+	"/backend-api/codex/",
 }
 
 const (

internal/logging/gin_logger_test.go

@@ -84,6 +84,9 @@ func TestIsAIAPIPathIncludesCodexBackend(t *testing.T) {
 			t.Fatalf("expected %s to be treated as AI API path", path)
 		}
 	}
+	if isAIAPIPath("/backend-api/codex-status") {
+		t.Fatalf("expected /backend-api/codex-status not to be treated as AI API path")
+	}
 }
 
 func TestGinLogrusLoggerAddsRequestIDForCodexBackend(t *testing.T) {