feat: 新增指定格式导入

electron/main/parser/index.ts

@@ -73,6 +73,15 @@ export function getSupportedFormats(): FormatFeature[] {
   return sniffer.getSupportedFormats()
 }
 
+/**
+ * 根据格式 ID 获取格式特征
+ * 用于手动指定格式时跳过嗅探
+ */
+export function getFormatFeatureById(formatId: string): FormatFeature | null {
+  const all = sniffer.getSupportedFormats()
+  return all.find((f) => f.id === formatId) ?? null
+}
+
 /**
  * 获取格式的预处理器（如果有）
  */

electron/main/worker/import/streamImport.ts

@@ -10,6 +10,7 @@ import {
   streamParseFile,
   detectFormat,
   detectAllFormats,
+  getFormatFeatureById,
   getPreprocessor,
   needsPreprocess,
   type ParsedMeta,
@@ -144,6 +145,16 @@ export async function streamImport(
   requestId: string,
   formatOptions?: Record<string, unknown>
 ): Promise<StreamImportResult> {
+  // 用户手动指定格式时，跳过自动检测直接使用指定的 Parser
+  if (formatOptions?.formatId) {
+    const formatId = formatOptions.formatId as string
+    const feature = getFormatFeatureById(formatId)
+    if (!feature) {
+      return { success: false, error: 'error.unknown_format_id' }
+    }
+    return streamImportSingle(filePath, requestId, feature, formatOptions)
+  }
+
   // 检测所有匹配的格式（按优先级排序）
   const candidates = detectAllFormats(filePath)
   if (candidates.length === 0) {

electron/preload/apis/chat.ts

@@ -226,7 +226,9 @@ export const chatApi = {
   /**
    * 获取支持的格式列表
    */
-  getSupportedFormats: (): Promise<Array<{ name: string; platform: string }>> => {
+  getSupportedFormats: (): Promise<
+    Array<{ id: string; name: string; platform: string; extensions: string[] }>
+  > => {
     return ipcRenderer.invoke('chat:getSupportedFormats')
   },
 

electron/preload/index.d.ts

@@ -135,7 +135,7 @@ interface ChatApi {
   ) => Promise<Array<{ type: MessageType; count: number }>>
   getTimeRange: (sessionId: string) => Promise<{ start: number; end: number } | null>
   getDbDirectory: () => Promise<string | null>
-  getSupportedFormats: () => Promise<Array<{ name: string; platform: string }>>
+  getSupportedFormats: () => Promise<Array<{ id: string; name: string; platform: string; extensions: string[] }>>
   onImportProgress: (callback: (progress: ImportProgress) => void) => () => void
   getCatchphraseAnalysis: (sessionId: string, filter?: TimeFilter) => Promise<CatchphraseAnalysis>
   getMentionAnalysis: (sessionId: string, filter?: TimeFilter) => Promise<MentionAnalysis>