Create Relay Bot MVP

tests/test_context.py

@@ -0,0 +1,16 @@
+from datetime import UTC, datetime
+from types import SimpleNamespace
+
+from app.memory.context_builder import ContextBuilder
+
+
+def test_context_keeps_summary_and_newest_messages_within_limit() -> None:
+    builder = ContextBuilder(token_limit=100)
+    summary = SimpleNamespace(text="goal: keep deployment simple")
+    messages = [
+        SimpleNamespace(sent_at=datetime.now(UTC), user_name="A", text="old " * 20),
+        SimpleNamespace(sent_at=datetime.now(UTC), user_name="B", text="new fact"),
+    ]
+    result = builder.build(summary, messages)
+    assert "goal" in result
+    assert "new fact" in result