introduces workspace items as combined search+chat model

web/src/lib/api.ts

@@ -17,6 +17,16 @@ export type SearchSummary = {
   updatedAt: string;
 };
 
+export type ChatWorkspaceItem = ChatSummary & {
+  type: "chat";
+};
+
+export type SearchWorkspaceItem = SearchSummary & {
+  type: "search";
+};
+
+export type WorkspaceItem = ChatWorkspaceItem | SearchWorkspaceItem;
+
 export type Message = {
   id: string;
   createdAt: string;
@@ -214,6 +224,11 @@ export async function listChats() {
   return data.chats;
 }
 
+export async function listWorkspaceItems() {
+  const data = await api<{ items: WorkspaceItem[] }>("/v1/workspace-items");
+  return data.items;
+}
+
 export async function verifySession() {
   return api<{ authenticated: true; mode: "open" | "token" }>("/v1/auth/session");
 }