Package portable grid agent operation (#134)

crates/metacrate-grid-agent/README.md

@@ -64,3 +64,7 @@ contract are specified in
 The embedded/split cross-platform operator interface, keyboard controls,
 privacy boundary, and focused gates are documented in
 [`../../docs/grid-agent-tui.md`](../../docs/grid-agent-tui.md).
+The complete quick start, platform paths, systemd/Windows service operation,
+secret rotation, backup/upgrade/rollback, failure playbooks, resource defaults,
+and unsupported-operation list are in
+[`../../docs/grid-agent-operations.md`](../../docs/grid-agent-operations.md).