compatible with C5.2 naming convention

csst_common/data_manager.py

@@ -485,6 +485,10 @@ class CsstMsDataManager:
     def l0_crs(self, detector=6):
         """ L0 cosmic ray file path """
         assert detector in self.available_detectors
+        if self.ver_sim == "C5.2":
+            fn = f"{self.telescope}_{self.instrument}_{self.project}_CRS_{self.exp_start}_" \
+                 f"{self.exp_stop}_{self.obs_id}_{detector:02d}_L{self.level}_{self.version}.{self.ext}"
+        else:
             fn = f"{self.telescope}_{self.instrument}_{self.project}_CRS_{self.exp_start}_" \
                  f"{self.exp_stop}_{self.obs_id}_{detector:02d}_L{self.level}_V{self.version}.{self.ext}"
         fp = os.path.join(self.dir_l0, fn)