feat: bake sampling_rate into Judge at construction; simplify Evaluat… #591

Job	Run time
server-ai-langchain-linux (3.13)	18s
server-ai-linux (3.11)	21s
server-ai-langchain-linux (3.12)	23s
server-ai-windows (3.10)	24s
server-ai-windows (3.13)	26s
server-ai-windows (3.11)	33s
server-ai-langchain-windows (3.12)	1m 11s
server-ai-linux (3.10)	20s
server-ai-langchain-linux (3.11)	21s
server-ai-windows (3.14)	27s
server-ai-langchain-linux (3.10)	22s
server-ai-langchain-linux (3.14)	21s
server-ai-linux (3.13)	19s
server-ai-windows (3.12)	32s
server-ai-openai-linux (3.11)	23s
server-ai-linux (3.14)	16s
server-ai-langchain-windows (3.14)	25s
server-ai-langchain-windows (3.11)	26s
server-ai-langchain-windows (3.10)	30s
server-ai-optimization-windows (3.10)	22s
server-ai-openai-linux (3.14)	28s
server-ai-optimization-windows (3.13)	41s
server-ai-openai-linux (3.12)	27s
server-ai-linux (3.12)	18s
server-ai-openai-linux (3.13)	26s
server-ai-langchain-windows (3.13)	34s
server-ai-openai-windows (3.14)	36s
server-ai-optimization-linux (3.10)	11s
server-ai-openai-windows (3.10)	30s
server-ai-optimization-linux (3.11)	11s
server-ai-optimization-linux (3.12)	13s
server-ai-optimization-linux (3.13)	11s
server-ai-openai-windows (3.11)	35s
server-ai-openai-linux (3.10)	27s
server-ai-optimization-linux (3.14)	15s
server-ai-openai-windows (3.13)	30s
server-ai-openai-windows (3.12)	34s
server-ai-optimization-windows (3.11)	20s
server-ai-optimization-windows (3.14)	35s
server-ai-optimization-windows (3.12)	19s
	17m 1s

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