[PD Disaggregation] support different tp_size for prefill and decode (#5296)

* up

* up

* up

* fix

fastdeploy/envs.py

@@ -150,6 +150,7 @@ environment_variables: dict[str, Callable[[], Any]] = {
     "FD_ENABLE_PDL": lambda: int(os.getenv("FD_ENABLE_PDL", "1")),
     # "Number of tokens in the group for Mixture of Experts (MoE) computation processing on HPU"
     "FD_HPU_CHUNK_SIZE": lambda: int(os.getenv("FD_HPU_CHUNK_SIZE", "64")),
+    "FD_PREFILL_WAIT_DECODE_RESOURCE_SECONDS": lambda: int(os.getenv("FD_PREFILL_WAIT_DECODE_RESOURCE_SECONDS", "30")),
 }