refactor: 清理 parser worker rag merger 的历史类型问题

electron/main/parser/formats/chatlab-jsonl.ts

@@ -18,7 +18,7 @@
 import * as fs from 'fs'
 import * as readline from 'readline'
 import * as path from 'path'
-import { KNOWN_PLATFORMS, ChatType, MessageType, type ChatPlatform } from '../../../../src/types/base'
+import { KNOWN_PLATFORMS, ChatType, MessageType } from '../../../../src/types/base'
 import type {
   FormatFeature,
   FormatModule,
@@ -29,13 +29,10 @@ import type {
   ParsedMember,
   ParsedMessage,
 } from '../types'
-import { getFileSize, createProgress, readFileHeadBytes } from '../utils'
+import { getFileSize, createProgress } from '../utils'
 
 // ==================== JSONL 行类型定义 ====================
 
-/** JSONL 行类型 */
-type JsonlLineType = 'header' | 'member' | 'message'
-
 /** Header 行结构 */
 interface JsonlHeader {
   _type: 'header'

electron/main/parser/formats/shuakami-qq-preprocessor.ts

@@ -362,7 +362,7 @@ function cleanupTempFile(filePath: string): void {
  * QQ Chat Exporter 预处理器
  */
 export const qqPreprocessor: Preprocessor = {
-  needsPreprocess(filePath: string, fileSize: number): boolean {
+  needsPreprocess(_filePath: string, fileSize: number): boolean {
     return fileSize > PREPROCESS_THRESHOLD
   },
 

electron/main/parser/formats/tyrrrz-discord-exporter.ts

@@ -333,7 +333,7 @@ async function* parseDiscordExporter(options: ParseOptions): AsyncGenerator<Pars
         memberMap.set(author.id, {
           platformId: author.id,
           accountName: author.name,
-          groupNickname: author.nickname || null,
+          groupNickname: author.nickname || undefined,
           avatar: author.avatarUrl,
           roles: convertRoles(author.roles),
         })
@@ -384,7 +384,7 @@ async function* parseDiscordExporter(options: ParseOptions): AsyncGenerator<Pars
         platformMessageId: msg.id, // 消息的平台原始 ID
         senderPlatformId: author.id,
         senderAccountName: author.name,
-        senderGroupNickname: author.nickname || null,
+        senderGroupNickname: author.nickname || undefined,
         timestamp: parseTimestamp(msg.timestamp),
         type: messageType,
         content: content || null,