Adds a gated `system.restart_namespace` action so operators and workers can
restart or gracefully reload MCP namespaces through an authorized, audited
path instead of manual host process killing (#630).
- webui/sanctioned_restart.py: restart/reload operation model, dry-run
intent preview, confirmation-string enforcement, audit emission, and
post-restart health verification. Fails closed on unknown auth, missing
capability, or ambiguous target namespace.
- webui/console_authz.py: RBAC entries for the restart capability with
secret redaction preserved.
- webui/gated_actions.py: registers the restart action in the gated action
framework so it cannot be invoked without capability + confirmation.
- task_capability_map.py: capability mapping for the restart operation.
- docs/sanctioned-restart-controls.md: operator documentation for the
sanctioned path and the explicit prohibition on pkill recovery.
- docs/webui-authz-audit.md: audit model updated for restart events.
- tests/test_webui_sanctioned_restart.py: authorized preview, unauthorized
deny, confirmation enforcement, contamination classification, and audit
emission coverage.
No unrestricted kill path is exposed; manual pkill remains classified as
contamination and continues to block clean claims.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
