fix(memory): return complete memory lists (#3885)

tests/test_manage_memory_list.py

@@ -0,0 +1,7 @@
+from pathlib import Path
+
+
+def test_memory_list_implementations_do_not_truncate_results():
+    for path in ("mcp_servers/memory_server.py", "src/ai_interaction.py"):
+        source = Path(path).read_text()
+        assert "memories[:100]" not in source