refactor: restructure dice environment handling and update Python version requirement

tests/dice/test_dice_wrapper.py

@@ -0,0 +1,38 @@
+from diceplayer.config import DiceConfig
+from diceplayer.dice.dice_wrapper import DiceEnvironment, DiceWrapper
+from tests._assets import ASSETS_DIR
+
+import pytest
+
+from pathlib import Path
+
+
+class TestDiceWrapper:
+    @pytest.fixture(autouse=True)
+    def dice_config(self) -> DiceConfig:
+        return DiceConfig.model_validate(
+            {
+                "nprocs": 4,
+                "ljname": "test",
+                "outname": "test",
+                "dens": 1.0,
+                "nmol": [1],
+                "nstep": [1, 1],
+            }
+        )
+
+    @pytest.fixture(autouse=True)
+    def working_directory(self) -> Path:
+        return ASSETS_DIR
+
+    @pytest.fixture(autouse=True)
+    def dice_wrapper(
+        self, dice_config: DiceConfig, working_directory: Path
+    ) -> DiceWrapper:
+        return DiceWrapper(dice_config, working_directory)
+
+    def test_parse_results(self, dice_wrapper: DiceWrapper) -> None:
+        results = dice_wrapper.parse_results()
+
+        assert isinstance(results, list)
+        assert all(isinstance(env, DiceEnvironment) for env in results)