revert 24ee8e448c

revert Update config tests for plain and unicode modes

tests/test_config.py

@@ -17,13 +17,13 @@ def test_load_default_config(tmp_path):
     assert "Réponds directement" in cfg.system_prompt
 
 
-def test_accept_unicode_format(tmp_path):
+def test_accept_word_equation_format(tmp_path):
     path = tmp_path / "config.json"
-    path.write_text(json.dumps({"provider": "ollama", "math_text_format": "unicode"}), encoding="utf-8")
+    path.write_text(json.dumps({"provider": "ollama", "math_text_format": "word_equation"}), encoding="utf-8")
 
     cfg = load_config(path)
 
-    assert cfg.math_text_format == "unicode"
+    assert cfg.math_text_format == "word_equation"
 
 
 def test_timeout_zero_disables_timeout(tmp_path):