Fix policy_preprocessor.json: open-source flashvla compat (pi05-flashvla type, drop dev-only fields, hub tokenizer id, flashvla processor step name)

policy_preprocessor.json

@@ -62,7 +62,7 @@
       "state_file": "policy_preprocessor_step_2_normalizer_processor.safetensors"
     },
     {
-      "registry_name": "vlash_pi05_prepare_language_processor_step",
+      "registry_name": "flashvla_pi05_prepare_language_processor_step",
       "config": {}
     },
     {
@@ -73,7 +73,7 @@
         "padding_side": "right",
         "padding": "max_length",
         "truncation": true,
-        "tokenizer_name": "/lustre/fsw/portfolios/nvr/projects/nvr_elm_llm/users/zekail/models/google/paligemma-3b-pt-224"
+        "tokenizer_name": "google/paligemma-3b-pt-224"
       }
     },
     {