feat: implement map and find optimization

surfsense_web/app/dashboard/[search_space_id]/new-chat/[[...chat_id]]/page.tsx

@@ -228,13 +228,14 @@ export default function NewChatPage() {
 					return prev;
 				}
 
+				const memberById = new Map(membersData?.map((m) => [m.user_id, m]) ?? []);
+				const prevById = new Map(prev.map((m) => [m.id, m]));
+
 				return syncedMessages.map((msg) => {
-					const member = msg.author_id
+					const member = msg.author_id ? memberById.get(msg.author_id) ?? null : null;
-						? membersData?.find((m) => m.user_id === msg.author_id)
-						: null;
 
 					// Preserve existing author info if member lookup fails (e.g., cloned chats)
-					const existingMsg = prev.find((m) => m.id === `msg-${msg.id}`);
+					const existingMsg = prevById.get(`msg-${msg.id}`);
 					const existingAuthor = existingMsg?.metadata?.custom?.author as
 						| { displayName?: string | null; avatarUrl?: string | null }
 						| undefined;

surfsense_web/hooks/use-documents.ts

@@ -246,9 +246,11 @@ export function useDocuments(
 					status: (doc.status as unknown as DocumentStatusType) ?? { state: "ready" },
 				}));
 
+			const liveById = new Map(validItems.map((v) => [v.id, v]));
+
 			let updated = prev.map((existing) => {
 				if (liveIds.has(existing.id)) {
-					const liveItem = validItems.find((v) => v.id === existing.id);
+					const liveItem = liveById.get(existing.id);
 					if (liveItem) {
 						return {
 							...existing,

surfsense_web/hooks/use-inbox.ts

@@ -157,8 +157,10 @@ export function useInbox(
 						}) as InboxItem
 				);
 
+			const liveById = new Map(recentItems.map((v) => [v.id, v]));
+
 			let updated = prev.map((existing) => {
-				const liveItem = recentItems.find((v) => v.id === existing.id);
+				const liveItem = liveById.get(existing.id);
 				if (liveItem) {
 					return {
 						...existing,