refactor: testing

Redid testing structure, added tests and changed some tests.

ref: N25B-301

src/control_backend/agents/bdi/bdi_core_agent/bdi_core_agent.py

@@ -1,4 +1,5 @@
 import asyncio
+import copy
 import json
 from collections.abc import Iterable
 
@@ -19,7 +20,8 @@ class BDICoreAgent(BaseAgent):
         super().__init__(name)
         self.asl_file = asl
         self.env = agentspeak.runtime.Environment()
-        self.actions = agentspeak.stdlib.actions
+        # Deep copy because we don't actually want to modify the standard actions globally
+        self.actions = copy.deepcopy(agentspeak.stdlib.actions)
 
     async def setup(self) -> None:
         self.logger.debug("Setup started.")

src/control_backend/core/config.py

@@ -75,7 +75,7 @@ class Settings(BaseSettings):
 
     llm_settings: LLMSettings = LLMSettings()
 
-    model_config = SettingsConfigDict(env_file=".env")
+    model_config = SettingsConfigDict(env_file=".env", env_nested_delimiter="__")
 
 
 settings = Settings()