style: ruff format + stronger sqlite asserts (delete utils, drop test_no_gng)

tests/test_types.py

@@ -1,6 +1,8 @@
-import uuid
-from agentmsgs.core.types import Agent, Thread, Message
 import datetime
+import uuid
+
+from agentmsgs.core.types import Agent, Thread
+
 
 def test_agent_identity_on_id_not_name():
     a1 = Agent(id=uuid.uuid4(), name="Alice")
@@ -8,17 +10,29 @@ def test_agent_identity_on_id_not_name():
     assert a1 != a2  # different id => not equal even though name same
     assert hash(a1) != hash(a2)
 
+
 def test_agent_hash_on_id():
     uid = uuid.uuid4()
     a1 = Agent(id=uid, name="Alice")
-    a2 = Agent(id=uid, name="Bob")  # same id, different name => equal per design (id is identity)
+    a2 = Agent(
+        id=uid, name="Bob"
+    )  # same id, different name => equal per design (id is identity)
     assert a1 == a2
     assert hash(a1) == hash(a2)
 
+
 def test_thread_multiple_with_same_participants_allowed():
     a = Agent(id=uuid.uuid4(), name="A")
     b = Agent(id=uuid.uuid4(), name="B")
-    t1 = Thread(id=uuid.uuid4(), participants=frozenset({a,b}), created_at=datetime.datetime.now(datetime.timezone.utc))
-    t2 = Thread(id=uuid.uuid4(), participants=frozenset({a,b}), created_at=datetime.datetime.now(datetime.timezone.utc))
+    t1 = Thread(
+        id=uuid.uuid4(),
+        participants=frozenset({a, b}),
+        created_at=datetime.datetime.now(datetime.UTC),
+    )
+    t2 = Thread(
+        id=uuid.uuid4(),
+        participants=frozenset({a, b}),
+        created_at=datetime.datetime.now(datetime.UTC),
+    )
     assert t1 != t2
     assert t1.participants == t2.participants