Add sglang router minimal/experimental support #5653

Job	Run time
compute-version	4s
build-docs	0s
build-artifacts / frontend-build	11s
build-artifacts / gateway-build	13s
build-artifacts / code-lint	53s
build-artifacts / runner-test (macos-latest)	1m 4s
build-artifacts / runner-test (ubuntu-latest)	1m 0s
build-artifacts / python-build	27s
build-artifacts / generate-json-schema	16s
build-artifacts / python-test (macos-latest, 3.9)	2m 26s
build-artifacts / python-test (macos-latest, 3.10)	2m 29s
build-artifacts / python-test (ubuntu-latest, 3.9)	2m 20s
build-artifacts / python-test (macos-latest, 3.11)	2m 13s
build-artifacts / python-test (macos-latest, 3.13)	2m 26s
build-artifacts / python-test (macos-latest, 3.12)	2m 4s
build-artifacts / python-test (ubuntu-latest, 3.11)	2m 20s
build-artifacts / python-test (windows-latest, 3.9)	1m 56s
build-artifacts / python-test (ubuntu-latest, 3.12)	2m 20s
build-artifacts / python-test (ubuntu-latest, 3.13)	2m 21s
build-artifacts / python-test (ubuntu-latest, 3.10)	2m 22s
build-artifacts / python-test (windows-latest, 3.11)	2m 7s
build-artifacts / python-test (windows-latest, 3.12)	2m 9s
build-artifacts / python-test (windows-latest, 3.13)	2m 16s
build-artifacts / python-test (windows-latest, 3.10)	2m 11s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	49s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	44s
upload-pre-pypi-artifacts	0s
upload-post-pypi-artifacts	-1s
	39m 40s

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