feat: add parameters setup template

[cdc-as81]

• ## Summary

• Add --template blank|parameters to the Ixa project setup script.
• Preserve the existing blank default and optional branch argument.
• Add a runnable parameters template with:
  • Serde support
  • Valid defaults
  • Parameter validation
  • Ixa global-property integration
  • Nine unit tests
• Install the selected branch's rust-toolchain.toml before invoking Cargo.
  This allows rustup to automatically select or install the compatible
  toolchain.
• Update setup CI to test checked-out scripts and template assets instead of
  remote main.
• Cover default blank, parameters, release-branch, help, and invalid-argument
  flows.
• Document the parameters template separately from the blank walkthrough.

Setup examples

Install the default blank template:

curl -s -f -L \
  https://raw.githubusercontent.com/CDCgov/ixa/main/scripts/setup_new_ixa_project.sh |
  sh

Install the parameters template from a branch:

curl -s -f -L \
  https://raw.githubusercontent.com/CDCgov/ixa/<branch>/scripts/setup_new_ixa_project.sh |
  sh -s -- <branch> --template parameters

[github-actions]

Benchmark Results

Hyperfine

Command	Mean [ms]	Min [ms]	Max [ms]	Relative
large_sir::baseline	3.4 ± 0.0	3.3	3.5	1.00
large_sir::baseline_households	3.4 ± 0.0	3.3	3.6	1.01 ± 0.02
large_sir::entities	8.2 ± 0.9	7.6	12.9	2.39 ± 0.28
large_sir::households	7.6 ± 0.1	7.4	8.1	2.22 ± 0.05

Criterion

Regressions (slower)

Group	Bench	Param	Change	CI Lower	CI Upper
indexing	query_people_indexed_multi-property_entities		8.043%	7.196%	9.066%
counts	multi_property_indexed_entities		7.894%	6.703%	9.093%
large_dataset	bench_query_population_multi_indexed_entities		7.712%	4.592%	10.592%
sampling	sampling_single_known_length_entities		3.646%	2.584%	4.713%
sample_entity	sample_entity_whole_population	10000	3.281%	2.843%	3.621%
sampling	count_and_sampling_single_known_length_entities		2.657%	2.007%	3.373%
sample_entity	sample_entity_single_property_indexed	1000	2.536%	1.675%	3.419%
large_dataset	bench_query_population_derived_property_entities		1.411%	1.166%	1.655%

Improvements (faster)

Group	Bench	Param	Change	CI Lower	CI Upper
indexing	query_people_single_indexed_property_entities		-9.100%	-9.548%	-8.819%
sample_entity	sample_entity_single_property_unindexed	1000	-7.459%	-7.922%	-6.939%
sample_entity	sample_entity_multi_property_indexed	100000	-6.979%	-7.401%	-6.556%
sampling	count_and_sampling_single_unindexed_concrete_plus_derived_entiti		-5.847%	-7.729%	-3.932%
sampling	sampling_single_unindexed_concrete_plus_derived_entities		-5.339%	-5.741%	-4.890%
counts	concrete_plus_derived_unindexed_entities		-5.193%	-7.210%	-3.369%
indexing	query_people_count_indexed_multi-property_entities		-3.409%	-4.715%	-2.141%
indexing	query_people_multiple_individually_indexed_properties_entities		-3.386%	-3.919%	-3.006%
counts	single_property_indexed_entities		-2.678%	-3.511%	-2.014%
sample_entity	sample_entity_multi_property_indexed	10000	-2.112%	-2.777%	-1.446%
sample_entity	sample_entity_whole_population	100000	-1.810%	-2.510%	-1.092%

Unchanged / inconclusive (CI crosses 0%)

Group	Bench	Param	Change	CI Lower	CI Upper
algorithm_benches	algorithm_sampling_single_known_length		2.559%	0.373%	5.252%
sampling	sampling_single_l_reservoir_entities		2.519%	0.907%	4.454%
sample_entity	sample_entity_multi_property_indexed	1000	-1.596%	-2.399%	-0.950%
counts	multi_property_unindexed_entities		-1.510%	-2.478%	-0.874%
indexing	query_people_count_multiple_individually_indexed_properties_enti		-1.450%	-1.856%	-0.905%
indexing	with_query_results_multiple_individually_indexed_properties_enti		1.218%	0.799%	1.573%
sampling	sampling_multiple_known_length_entities		1.207%	0.664%	1.818%
indexing	with_query_results_single_indexed_property_entities		1.137%	0.680%	1.525%
examples	example-basic-infection		-1.115%	-1.623%	-0.645%
sample_entity	sample_entity_whole_population	1000	-1.051%	-1.582%	-0.502%
sampling	sampling_multiple_l_reservoir_entities		1.035%	0.164%	2.403%
examples	example-births-deaths		-1.034%	-1.483%	-0.599%
large_dataset	bench_filter_unindexed_entity		0.931%	-2.409%	4.545%
sample_entity	sample_entity_single_property_indexed	100000	-0.698%	-1.189%	-0.236%
indexing	with_query_results_indexed_multi-property_entities		0.667%	0.469%	0.867%
sample_entity	sample_entity_single_property_unindexed	10000	-0.589%	-1.974%	0.950%
indexing	query_people_count_single_indexed_property_entities		-0.546%	-0.803%	-0.334%
algorithm_benches	algorithm_sampling_single_l_reservoir		-0.528%	-1.054%	-0.091%
counts	single_property_unindexed_entities		-0.490%	-1.878%	0.559%
large_dataset	bench_filter_indexed_entity		-0.447%	-2.160%	1.353%
algorithm_benches	algorithm_sampling_multiple_l_reservoir		0.400%	-0.018%	0.867%
sampling	sampling_single_unindexed_entities		0.351%	0.064%	0.723%
large_dataset	bench_query_population_indexed_property_entities		0.246%	-0.141%	0.771%
counts	reindex_after_adding_more_entities		0.237%	-0.102%	0.631%
large_dataset	bench_match_entity		0.188%	-0.123%	0.578%
counts	index_after_adding_entities		0.179%	-0.125%	0.447%
algorithm_benches	algorithm_sampling_multiple_known_length		0.178%	-0.203%	0.691%
large_dataset	bench_query_population_property_entities		0.174%	-0.311%	0.826%
sample_entity	sample_entity_single_property_unindexed	100000	-0.137%	-0.547%	0.302%
sampling	sampling_multiple_unindexed_entities		-0.133%	-0.340%	0.036%
large_dataset	bench_query_population_multi_unindexed_entities		0.069%	-0.465%	0.685%
algorithm_benches	algorithm_sampling_single_rand_reservoir		-0.045%	-0.167%	0.069%
sample_entity	sample_entity_single_property_indexed	10000	-0.042%	-0.744%	0.697%

Not Compared (no baseline yet)

Group	Bench	Reason
(none)