refactor(chat): show images in page overlay

src/lib/chat/chat_scroll_session_storage.ts

@@ -1,48 +0,0 @@
-"use client";
-
-import { z } from "zod";
-
-import { StorageKeys } from "@/data/storage/storage_keys";
-import { Result, SessionAsyncUtil, type Result as ResultT } from "@/utils";
-
-const ChatScrollSessionSchema = z.object({
-  version: z.literal(2),
-  reason: z.literal("image-viewer"),
-  anchorMessageId: z.string().min(1),
-  anchorOffsetTop: z.number(),
-  fallbackScrollTop: z.number(),
-  savedAt: z.number(),
-});
-
-export type ChatScrollSession = z.output<typeof ChatScrollSessionSchema>;
-
-export class ChatScrollSessionStorage {
-  private constructor() {}
-
-  static setSnapshot(snapshot: ChatScrollSession): Promise<ResultT<void>> {
-    return SessionAsyncUtil.setJson(
-      StorageKeys.chatScrollSession,
-      snapshot,
-      ChatScrollSessionSchema,
-    );
-  }
-
-  static getSnapshot(): Promise<ResultT<ChatScrollSession | null>> {
-    return SessionAsyncUtil.getJson(
-      StorageKeys.chatScrollSession,
-      ChatScrollSessionSchema,
-    );
-  }
-
-  static clearSnapshot(): Promise<ResultT<void>> {
-    return SessionAsyncUtil.remove(StorageKeys.chatScrollSession);
-  }
-
-  static async consumeSnapshot(): Promise<ResultT<ChatScrollSession | null>> {
-    const result = await ChatScrollSessionStorage.getSnapshot();
-    const cleared = await ChatScrollSessionStorage.clearSnapshot();
-    if (Result.isErr(result)) return result;
-    if (Result.isErr(cleared)) return cleared;
-    return result;
-  }
-}