ci(e2e): add MCP conformance coverage #2075

Job	Run time
Resolve PR metadata	19s
build-supervisor / Resolve build plan	3s
build-gateway / Resolve build plan	3s
build-supervisor / Rust sandbox (amd64) / sandbox (amd64)	3m 7s
build-supervisor / Rust sandbox (arm64) / sandbox (arm64)	3m 49s
build-gateway / Rust gateway (amd64) / gateway (amd64)	6m 26s
build-gateway / Rust gateway (arm64) / gateway (arm64)	7m 3s
build-supervisor / Build supervisor (arm64)	1m 20s
build-supervisor / Build supervisor (amd64)	1m 18s
build-supervisor / Merge supervisor manifest	1m 5s
build-gateway / Build gateway (amd64)	1m 25s
build-gateway / Build gateway (arm64)	1m 28s
gpu-e2e	0s
GPU E2E result	0s
build-gateway / Merge gateway manifest	1m 2s
mcp-conformance / MCP Conformance	6m 21s
kubernetes-e2e / Kubernetes E2E (Rust smoke)	9m 53s
e2e / E2E (rust-podman)	7m 52s
e2e / E2E (rust-podman-rootless)	8m 59s
e2e / E2E (python)	6m 54s
e2e / E2E (rust-docker)	6m 45s
kubernetes-ha-e2e	0s
Kubernetes HA E2E result	0s
Core E2E result	3s
	1h 15m 15s

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