feat(policy): add JSON-RPC and MCP L7 policies #2300

Job	Run time
Resolve PR metadata	7s
build-cli / Resolve build plan	4s
build-supervisor / Resolve build plan	2s
build-gateway / Resolve build plan	2s
build-supervisor / Rust sandbox (arm64) / sandbox (arm64)	5m 11s
build-supervisor / Rust sandbox (amd64) / sandbox (amd64)	4m 55s
build-gateway / Rust gateway (amd64) / gateway (amd64)	14m 25s
build-gateway / Rust gateway (arm64) / gateway (arm64)	14m 26s
build-cli / Rust cli (amd64) / cli (amd64)	12m 56s
build-supervisor / Build supervisor (amd64)	1m 17s
build-supervisor / Build supervisor (arm64)	1m 20s
build-supervisor / Merge supervisor manifest	1m 8s
gpu-e2e	0s
GPU E2E result	0s
build-cli / Build ${{ inputs.component }} (${{ matrix.arch }})	0s
build-cli / Merge ${{ inputs.component }} manifest	0s
build-gateway / Build ${{ inputs.component }} (${{ matrix.arch }})	1s
Core E2E result	3s
build-gateway / Merge ${{ inputs.component }} manifest	1s
e2e	-1s
kubernetes-ha-e2e	-1s
Kubernetes HA E2E result	1s
kubernetes-e2e	-1s
	55m 56s

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