feat(documents): add samples #2617

Job	Run time
discover-testcases	5s
basic-testcase / alpha	32s
apicalls-testcase / alpha	57s
basic-testcase / cloud	36s
calculator-evals / alpha	1m 16s
apicalls-testcase / cloud	55s
calculator-evals / staging	1m 18s
calculator-crash-evals / staging	1m 49s
calculator-evals / cloud	1m 24s
calculator-crash-evals / alpha	1m 30s
eval-spans-testcase / cloud	1m 20s
eval-spans-testcase / staging	1m 19s
eval-telemetry-testcase / staging	1m 49s
eval-telemetry-testcase / alpha	1m 56s
apicalls-testcase / staging	53s
calculator-crash-evals / cloud	1m 44s
basic-testcase / staging	34s
eval-telemetry-testcase / cloud	1m 58s
tools-evals / alpha	1m 28s
eval-spans-testcase / alpha	1m 19s
langchain-cross / alpha	49s
tools-evals / cloud	1m 35s
langchain-cross / cloud	48s
tools-evals / staging	1m 32s
langchain-cross / staging	51s
summarize-results	3s
	30m 20s

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