feat(frontend): capture policy shows what each rule changes, rule card opens from folder and chat menus and can trash downloaded files, trash is paged

frontend/src/lib/stores/policy.svelte.ts

@@ -0,0 +1,36 @@
+import type { ScopeTarget } from "#lib/api/types.js";
+
+function createPolicyUi() {
+  let open = $state(false);
+  let target = $state<ScopeTarget | null>(null);
+  let title = $state("");
+  let revision = $state(0);
+
+  return {
+    edit(next: ScopeTarget, name: string) {
+      target = next;
+      title = name;
+      open = true;
+    },
+    get open() {
+      return open;
+    },
+    set open(value: boolean) {
+      open = value;
+    },
+    get revision() {
+      return revision;
+    },
+    get target() {
+      return target;
+    },
+    get title() {
+      return title;
+    },
+    touch() {
+      revision += 1;
+    },
+  };
+}
+
+export const policyUi = createPolicyUi();