refactor(chat): remove pagination-related state and logic from chat components

src/stores/chat/chat-history-sync.ts

@@ -3,15 +3,16 @@ import { resolveChatCacheOwnerKey } from "@/data/repositories/chat_cache_identit
 import { getChatRepository } from "@/data/repositories/chat_repository";
 import { Logger, Result, todayString } from "@/utils";
 
-import { localMessagesToUi, PAGE_SIZE } from "./chat-machine.helpers";
+import {
+  CHAT_HISTORY_LIMIT,
+  localMessagesToUi,
+} from "./chat-machine.helpers";
 
 const log = new Logger("StoresChatChatHistorySync");
 
 export type ReadAndSyncHistoryOutput = {
   /** Network-authoritative messages. Empty network history includes a UI greeting. */
   messages: UiMessage[];
-  hasMore: boolean;
-  newOffset: number;
   /** True when network history was written back to local storage. */
   localOverwritten: boolean;
   localCount: number;
@@ -21,8 +22,6 @@ export type ReadAndSyncHistoryOutput = {
 export type LocalHistorySnapshotOutput = {
   /** Local cached messages. Empty local history includes a UI greeting. */
   messages: UiMessage[];
-  hasMore: boolean;
-  newOffset: number;
   localCount: number;
 };
 
@@ -69,8 +68,6 @@ export async function readLocalHistorySnapshot(
 
   return {
     messages: snapshotMessages,
-    hasMore: localMessages.length >= PAGE_SIZE,
-    newOffset: snapshotMessages.length,
     localCount: localMessages.length,
   };
 }
@@ -82,7 +79,7 @@ export async function syncNetworkHistory(
   const chatRepo = getChatRepository();
   const greetingMessage = createGreetingMessage();
 
-  const networkResult = await chatRepo.getHistory(PAGE_SIZE, 0);
+  const networkResult = await chatRepo.getHistory(CHAT_HISTORY_LIMIT, 0);
   if (Result.isErr(networkResult)) {
     log.error("[chat-machine] loadHistory NETWORK FAILED", {
       error: networkResult.error,
@@ -120,8 +117,6 @@ export async function syncNetworkHistory(
 
   return {
     messages: finalMessages,
-    hasMore: finalMessages.length >= PAGE_SIZE,
-    newOffset: finalMessages.length,
     localOverwritten,
     localCount,
     networkCount: networkUi.length,
@@ -145,8 +140,6 @@ export async function readAndSyncHistory(): Promise<ReadAndSyncHistoryOutput> {
 
   return {
     messages: localSnapshot.messages,
-    hasMore: localSnapshot.hasMore,
-    newOffset: localSnapshot.newOffset,
     localOverwritten: false,
     localCount: localSnapshot.localCount,
     networkCount: 0,