Add sglang router minimal support #5677

Job	Run time
compute-version	3s
build-docs	0s
build-artifacts / code-lint	52s
build-artifacts / frontend-build	11s
build-artifacts / runner-test (ubuntu-latest)	55s
build-artifacts / gateway-build	11s
build-artifacts / runner-test (macos-latest)	1m 36s
build-artifacts / python-build	29s
build-artifacts / generate-json-schema	19s
build-artifacts / python-test (macos-latest, 3.9)	3m 8s
build-artifacts / python-test (macos-latest, 3.10)	2m 50s
build-artifacts / python-test (macos-latest, 3.11)	3m 3s
build-artifacts / python-test (macos-latest, 3.12)	2m 54s
build-artifacts / python-test (ubuntu-latest, 3.11)	3m 0s
build-artifacts / python-test (ubuntu-latest, 3.9)	2m 58s
build-artifacts / python-test (ubuntu-latest, 3.13)	3m 1s
build-artifacts / python-test (macos-latest, 3.13)	3m 10s
build-artifacts / python-test (windows-latest, 3.13)	2m 51s
build-artifacts / python-test (windows-latest, 3.10)	3m 4s
build-artifacts / python-test (ubuntu-latest, 3.10)	3m 0s
build-artifacts / python-test (ubuntu-latest, 3.12)	2m 58s
build-artifacts / python-test (windows-latest, 3.9)	2m 2s
build-artifacts / python-test (windows-latest, 3.11)	2m 23s
build-artifacts / python-test (windows-latest, 3.12)	2m 58s
build-artifacts / runner-compile (ubuntu-24.04-arm, linux, arm64)	47s
build-artifacts / runner-compile (ubuntu-24.04, linux, amd64)	42s
upload-pre-pypi-artifacts	0s
upload-post-pypi-artifacts	0s
	49m 25s

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