feat: rename graph titles with select-then-edit interaction

src/lib/workspace.ts

@@ -8,6 +8,7 @@ export type Board = {
   title: string;
   version: number;
   content?: { schema_version: number };
+  description?: string;
 };
 export const DEFAULT_BOARD_TITLE = "未命名图谱";
 
@@ -56,3 +57,18 @@ export async function createBoard(
   });
   return { ...result, workspace_id: result.workspace_id || id, title: name };
 }
+
+
+export async function renameBoard(request: Request, workspaceId: string, boardId: string, title: string): Promise<Board> {
+  const name = title.trim();
+  if (!name || new TextEncoder().encode(name).length > 300) throw new Error("invalid_title");
+  const path = `workspaces/${encodeURIComponent(workspaceId)}/materials/${encodeURIComponent(boardId)}`;
+  const current = await request<Board>(path);
+  if (current.kind !== "board" || current.id !== boardId || current.workspace_id !== workspaceId) throw new Error("invalid_reference");
+  await request(path, {
+    method: "PATCH",
+    headers: { "If-Match": `"${current.version}"` },
+    body: JSON.stringify({ title: name, description: current.description || "", content: current.content || { schema_version: 1 } }),
+  });
+  return { ...current, title: name, version: current.version + 1 };
+}