Add server API for UI templates #6424

Job	Run time
build-docs / build-docs	1m 20s
compute-version	4s
build-artifacts / frontend-build	12s
build-artifacts / runner-test (macos-latest)	1m 9s
build-artifacts / code-lint	48s
build-artifacts / runner-test (ubuntu-latest)	1m 0s
build-artifacts / gateway-build	10s
build-artifacts / generate-json-schema	22s
build-artifacts / python-build	19s
build-artifacts / python-test (macos-latest, 3.12)	3m 40s
build-artifacts / python-test (macos-latest, 3.11)	3m 46s
build-artifacts / python-test (macos-latest, 3.13)	3m 13s
build-artifacts / python-test (ubuntu-latest, 3.10)	4m 44s
build-artifacts / python-test (ubuntu-latest, 3.11)	5m 9s
build-artifacts / python-test (macos-latest, 3.10)	3m 55s
build-artifacts / python-test (ubuntu-latest, 3.13)	5m 8s
build-artifacts / python-test (windows-latest, 3.12)	2m 49s
build-artifacts / python-test (windows-latest, 3.11)	2m 0s
build-artifacts / python-test (macos-latest, 3.9)	3m 19s
build-artifacts / python-test (windows-latest, 3.9)	3m 12s
build-artifacts / python-test (windows-latest, 3.13)	2m 7s
build-artifacts / python-test (ubuntu-latest, 3.9)	5m 4s
build-artifacts / python-test (ubuntu-latest, 3.12)	5m 14s
build-artifacts / python-test (windows-latest, 3.10)	2m 4s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	36s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	40s
upload-pre-pypi-artifacts / upload-pre-pypi-artifacts	16s
upload-post-pypi-artifacts / upload-post-pypi-artifacts	14s
	1h 2m 34s

Provide feedback