feat: add sidebar

web/src/contexts/useSystemActions.ts

@@ -0,0 +1,15 @@
+import { useContext } from "react";
+import {
+  SystemActionsContext,
+  type SystemActionsState,
+} from "./system-actions-context";
+
+export function useSystemActions(): SystemActionsState {
+  const ctx = useContext(SystemActionsContext);
+  if (!ctx) {
+    throw new Error(
+      "useSystemActions must be used within a SystemActionsProvider",
+    );
+  }
+  return ctx;
+}