feat: Graph tracking refactor — ManagedAgentGraph drives tracking for new runner shape #622

Job	Run time
server-ai-optimization-windows (3.10)	23s
server-ai-langchain-windows (3.14)	55s
server-ai-langchain-windows (3.13)	35s
server-ai-optimization-windows (3.14)	33s
server-ai-windows (3.13)	37s
server-ai-langchain-linux (3.12)	22s
server-ai-langchain-windows (3.11)	22s
server-ai-langchain-linux (3.13)	19s
server-ai-langchain-windows (3.10)	26s
server-ai-windows (3.14)	24s
server-ai-optimization-windows (3.11)	50s
server-ai-langchain-linux (3.11)	25s
server-ai-optimization-windows (3.13)	42s
server-ai-linux (3.13)	17s
server-ai-windows (3.12)	23s
server-ai-linux (3.12)	19s
server-ai-optimization-windows (3.12)	27s
server-ai-windows (3.11)	29s
server-ai-linux (3.14)	21s
server-ai-langchain-windows (3.12)	26s
server-ai-optimization-linux (3.12)	9s
server-ai-openai-linux (3.14)	26s
server-ai-windows (3.10)	28s
server-ai-openai-windows (3.13)	43s
server-ai-openai-windows (3.11)	23s
server-ai-openai-linux (3.12)	25s
server-ai-openai-linux (3.10)	48s
server-ai-optimization-linux (3.13)	15s
server-ai-openai-linux (3.11)	28s
server-ai-optimization-linux (3.10)	11s
server-ai-openai-linux (3.13)	28s
server-ai-optimization-linux (3.11)	11s
server-ai-openai-windows (3.12)	33s
server-ai-openai-windows (3.14)	33s
server-ai-linux (3.10)	20s
server-ai-langchain-linux (3.14)	26s
server-ai-langchain-linux (3.10)	20s
server-ai-optimization-linux (3.14)	11s
server-ai-linux (3.11)	32s
server-ai-openai-windows (3.10)	44s
	18m 9s

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