refactor PIPELINE

csst_common/pipeline.py

@@ -147,7 +147,7 @@ class Pipeline:
     def info_header(self) -> fits.Header:
         """Summarize pipeline info into a `astropy.io.fits.Header`."""
         h = fits.Header()
-        h.set("PIPELINE_ID", self.pipeline_id, comment="pipeline ID")
+        h.set("PIPELINE", self.pipeline_id, comment="pipeline ID")
         h.set("BUILD", self.build, comment="pipeline build number")
         h.set("CREATED", self.pipeline_id, comment="pipeline build time")
         return reformat_header(h, strip=False, comment="Pipeline info")