Cloud DevOps MCP Server v0.4.0

Major intelligence and transport upgrade. Adds AWS/Azure/GCP identity policy packs, deeper Terraform security analysis, Kubernetes security-policy analysis, CycloneDX/SPDX SBOM and software supply-chain correlation, and optional bearer-authenticated Streamable HTTP using the MCP v2 Node/Fastify adapters. Stdio remains the default. Non-local HTTP requires explicit Host allowlisting and HTTPS public routing. Verification: 37/37 tests pass; coverage 87.20% statements, 73.83% branches, 91.58% functions, 89.73% lines; production dependency audit reports 0 vulnerabilities; MCP Registry schema validation passes.