[BREAKING] Codex CLI 0.147.0: Agent Plugins, opt-in MCP 2026-07-28, `--full-auto` removed

Adds installable portable Agent Plugins with search across local, personal, workspace, and remote catalogs, plus opt-in support for the MCP 2026-07-28 protocol revision (paginated discovery, multi-round requests, non-blocking server startup). The deprecated `codex exec --full-auto` flag is removed — use `--sandbox workspace-write` — and Linux bundle archives are no longer published. Unfamiliar local projects now require explicit trust before running.

Tool: codex-cli · Version: rust-v0.147.0 · Significance: 4/5 · BREAKING CHANGE · feature, breaking, deprecation, security, fix, api-change