feat(a2ui): v0.9 action envelope and sendDataModel transport (#101) #13

Job	Run time
Deploy to LangGraph Cloud (durable-execution, cockpit/langgraph/durable-execution/python)	46s
Deploy to LangGraph Cloud (subgraphs, cockpit/langgraph/subgraphs/python)	47s
Deploy to LangGraph Cloud (filesystem, cockpit/deep-agents/filesystem/python)	52s
Deploy to LangGraph Cloud (planning, cockpit/deep-agents/planning/python)	47s
Deploy to LangGraph Cloud (memory, cockpit/langgraph/memory/python)	46s
Deploy to LangGraph Cloud (interrupts, cockpit/langgraph/interrupts/python)	44s
Deploy to LangGraph Cloud (skills, cockpit/deep-agents/skills/python)	42s
Deploy to LangGraph Cloud (time-travel, cockpit/langgraph/time-travel/python)	48s
Deploy to LangGraph Cloud (da-memory, cockpit/deep-agents/memory/python)	44s
Deploy to LangGraph Cloud (deployment-runtime, cockpit/langgraph/deployment-runtime/python)	43s
Deploy to LangGraph Cloud (persistence, cockpit/langgraph/persistence/python)	40s
Deploy to LangGraph Cloud (sandboxes, cockpit/deep-agents/sandboxes/python)	43s
Deploy to LangGraph Cloud (streaming, cockpit/langgraph/streaming/python)	53s
Deploy to LangGraph Cloud (da-subagents, cockpit/deep-agents/subagents/python)	48s
	10m 43s

Provide feedback