fix!: Remove stale ManagedModel message management and AgentGraphResu… #660

Job	Run time
server-ai-langchain-windows (3.10)	26s
server-ai-optimization-linux (3.10)	17s
server-ai-windows (3.14)	30s
server-ai-optimization-linux (3.13)	14s
server-ai-windows (3.12)	23s
server-ai-langchain-windows (3.12)	25s
server-ai-langchain-windows (3.11)	24s
server-ai-optimization-linux (3.14)	16s
server-ai-windows (3.11)	24s
server-ai-linux (3.10)	19s
server-ai-openai-windows (3.10)	23s
server-ai-openai-linux (3.13)	1m 48s
server-ai-openai-windows (3.13)	23s
server-ai-openai-linux (3.10)	25s
server-ai-langchain-windows (3.13)	47s
server-ai-openai-linux (3.11)	31s
server-ai-optimization-linux (3.11)	14s
server-ai-linux (3.12)	20s
server-ai-openai-windows (3.12)	23s
server-ai-langchain-linux (3.10)	26s
server-ai-linux (3.14)	22s
server-ai-openai-windows (3.14)	36s
server-ai-optimization-windows (3.14)	17s
server-ai-optimization-windows (3.12)	19s
server-ai-openai-linux (3.12)	29s
server-ai-langchain-linux (3.13)	24s
server-ai-openai-linux (3.14)	28s
server-ai-openai-windows (3.11)	40s
server-ai-optimization-windows (3.11)	47s
server-ai-optimization-linux (3.12)	10s
server-ai-windows (3.13)	40s
server-ai-optimization-windows (3.13)	20s
server-ai-linux (3.11)	25s
server-ai-langchain-linux (3.14)	24s
server-ai-optimization-windows (3.10)	34s
server-ai-langchain-linux (3.12)	21s
server-ai-windows (3.10)	22s
server-ai-langchain-linux (3.11)	24s
server-ai-linux (3.13)	16s
server-ai-langchain-windows (3.14)	25s
	18m 1s

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