Add headless api template #32871

Job	Run time
Determine changes	10s
validate-docs-links	12s
build-native / build	9s
build-next / build	9s
lint	0s
types and precompiled	0s
rust check	0s
test cargo unit	0s
rustdoc check	0s
test turbopack dev	0s
Run devlow benchmarks	0s
test turbopack development integration	0s
test turbopack production	0s
test next-swc wasi	0s
Test new tests for flakes (dev)	0s
test next-swc wasm	0s
test turbopack production integration	0s
test dev	0s
test firefox and safari	0s
test integration	0s
Test new tests for flakes (prod)	0s
test ppr dev	0s
test ppr prod	0s
test ppr integration	0s
test prod	0s
test unit (18) / build	10s
test unit (20) / build	11s
Test new tests when deployed	0s
thank you, next	1s
report test results to datadog	0s
	1m 2s

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