Emit gateway.start, gateway.ready, and gateway.shutdown on the shared runtime event bus, while keeping reload events on the same helper path.
Update subturn architecture docs to refer to runtime event kinds instead of the removed agent EventBus names.
Validation: GOCACHE=/tmp/picoclaw-go-cache go test ./pkg/gateway ./pkg/events; GOCACHE=/tmp/picoclaw-go-cache go test ./pkg/bus ./pkg/channels ./pkg/mcp ./pkg/tools/integration ./pkg/events ./pkg/gateway; make lint
Remove the legacy EventKind/Event envelope mapping and let agent event emission build pkg/events.Event values directly.
Keep HookMeta as the shared hook metadata shape and preserve legacy observe string aliases by mapping them to runtime event kinds.
Validation: GOCACHE=/tmp/picoclaw-go-cache go test ./pkg/agent; make lint
Migrate hook observation to runtime events and update the process hook notification protocol. Add runtime event publication for message bus failures, channel lifecycle/outbound flow, gateway reloads, MCP server state, and MCP tool calls.
Validation: go test ./pkg/events/... ./pkg/bus ./pkg/agent ./pkg/channels ./pkg/mcp ./pkg/tools/integration ./pkg/gateway; make lint