feat(environment): add set_reward_computer() injection method for Person 2

server/environment.py

@@ -23,3 +23,7 @@ class RedTeamEnvironment:
 
         self.reward_computer: Optional[Callable] = None
         self.llm_pipeline:    Optional[Callable] = None
+
+    def set_reward_computer(self, compute_fn: Callable) -> None:
+        self.reward_computer = compute_fn
+        logger.info("Reward computer wired up (Person 2)")