Pass context between AssistantAgent for handoffs #3568

Job	Run time
format	49s
lint	54s
codecov (./packages/autogen-core)	1m 1s
docs (./packages/autogen-core)	1m 31s
codecov (./packages/autogen-magentic-one)	2m 2s
codecov (./packages/autogen-ext)	2m 55s
pyright (./packages/autogen-core)	57s
mypy (./packages/autogen-core)	2m 25s
codecov (./packages/autogen-agentchat)	1m 8s
pyright (./packages/autogen-magentic-one)	58s
test (./packages/autogen-core)	55s
mypy (./packages/autogen-magentic-one)	1m 18s
pyright (./packages/agbench)	52s
test (./packages/autogen-magentic-one)	1m 26s
mypy (./packages/agbench)	53s
pyright (./packages/autogen-ext)	1m 6s
test (./packages/autogen-ext)	2m 46s
mypy (./packages/autogen-ext)	2m 7s
pyright (./packages/autogen-agentchat)	1m 2s
test (./packages/autogen-agentchat)	58s
mypy (./packages/autogen-agentchat)	1m 32s
pyright (./packages/magentic-one-cli)	55s
mypy (./packages/magentic-one-cli)	1m 26s
check-proto-changes-python	1m 14s
docs-example-check (./packages/autogen-core)	2m 54s
markdown-code-lint	2m 2s
samples-code-check	59s
	39m 5s

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