feat: update test cases to remove unnecessary protocol loading and clean up imports

Author: nicosammito

build/python/.gitignore

@@ -138,4 +138,3 @@ Thumbs.db
 
 # generated protobuf
 src/tucana/generated/*/*.py
-!src/tucana/generated/*/__init__.py

build/python/tests/test_tucana.py

@@ -1,38 +1,18 @@
-import pytest
-
-from tucana import load_protocol, AVAILABLE_PROTOCOLS
-
-
-def test_available_protocols():
-    """Test that AVAILABLE_PROTOCOLS is defined."""
-    assert AVAILABLE_PROTOCOLS == ("shared", "aquila", "sagittarius", "velorum")
-
-
 def test_load_shared():
     """Test loading shared protocol."""
-    load_protocol("shared")
     from tucana.generated import shared  # noqa: F401
 
 
 def test_load_aquila():
     """Test loading aquila protocol."""
-    load_protocol("aquila")
     from tucana.generated import aquila  # noqa: F401
 
 
 def test_load_sagittarius():
     """Test loading sagittarius protocol."""
-    load_protocol("sagittarius")
     from tucana.generated import sagittarius  # noqa: F401
 
 
 def test_load_velorum():
     """Test loading velorum protocol."""
-    load_protocol("velorum")
-    from tucana.generated import velorum  # noqa: F401
-
-
-def test_load_invalid_protocol():
-    """Test loading invalid protocol raises error."""
-    with pytest.raises(ValueError, match="Unknown protocol"):
-        load_protocol("invalid")
+    from tucana.generated import velorum  # noqa: F401