0.1.64

Test release for Home Assistant HACS.\n\nIncludes:\n- native Home Assistant Assist text streaming for the OpenClaw conversation agent\n- chat card fix so custom:openclaw-chat-card can recognize both new entity-backed and legacy OpenClaw Assist pipeline ids\n- card refreshes integration/pipeline settings before sending, reducing accidental fallback to legacy non-streaming mode\n- legacy fallback via openclaw.send_message remains in place if Assist pipeline streaming is unavailable\n\nVerification:\n- pytest -q tests/test_conversation_streaming.py\n- node --check custom_components/openclaw/www/openclaw-chat-card.js