fix: make startup_banner test credential-free

fix: make plugin lifecycle test credential-free

fix: post-merge clippy/fmt cleanup (9407-9410 integration)

merge: clawcode-issue-9410-cli-ux-progress-status-clear into main

merge: clawcode-issue-9409-config-env-project-permissions into main

merge: clawcode-issue-9408-api-sse-streaming into main

merge: clawcode-issue-9407-cli-agents-mcp-config into main

merge: clawcode-issue-9406-commands-skill-install into main

merge: clawcode-issue-9405-plugins-execution-pipeline into main

merge: clawcode-issue-9404-tools-plan-worktree into main

Wire plugin hooks and lifecycle into runtime startup

Expose configured MCP servers from the CLI

Preserve usage accounting on OpenAI SSE streams

Make /skills install reusable skill packs

Preserve resumable history when clearing CLI sessions