feat: add split-safe fundamentals research protocol

tests/unit/test_fundamentals_research_runner.py

@@ -29,6 +29,27 @@ def test_arm_matrix_is_bounded_and_pre_registered():
     }
 
 
+def test_split_safe_matrix_is_smaller_and_trial_corrected():
+    assert runner.SPLIT_SAFE_N_TRIALS == 10
+    assert runner.SPLIT_SAFE_ARMS[0]["id"] == "control_w00"
+    assert {arm["weight"] for arm in runner.SPLIT_SAFE_ARMS[1:]} == {
+        0.05,
+        0.10,
+        0.15,
+    }
+    assert {arm["composite"] for arm in runner.SPLIT_SAFE_ARMS[1:]} == {
+        "quality",
+        "growth",
+        "balanced",
+    }
+
+
+def test_split_safe_output_has_a_distinct_name():
+    assert runner._default_out(runner.SPLIT_SAFE_PROTOCOL).name.startswith(
+        "fundamentals-splitsafe-"
+    )
+
+
 def test_development_grade_does_not_read_test_window():
     control = {
         "windows": [