修复md导入问题

src/components/import-context.tsx

@@ -3,7 +3,6 @@
 import React, { createContext, useContext, useRef, useState, useCallback } from "react";
 import { useEditorStore } from "@/lib/store";
 import JSZip from "jszip";
-import { markdownToImportHtml } from "@/lib/markdown-import";
 
 interface ImportContextType {
     triggerImport: (parentId?: string | null) => void;
@@ -130,7 +129,7 @@ export function ImportProvider({ children }: { children: React.ReactNode }) {
     const handleSingleFileImport = async (file: File) => {
         const text = await file.text();
         const title = file.name.replace(/\.md$/i, "");
-        const html = markdownToImportHtml(text);
+        // 直接存储原始 Markdown，tiptap-markdown 扩展会在编辑器加载时自动解析
         const parentId = targetParentIdRef.current;
         const existing = pages.find((p) => p.type === "file" && p.parentId === parentId && (p.title || "").trim() === title.trim());
         if (existing) {
@@ -138,8 +137,7 @@ export function ImportProvider({ children }: { children: React.ReactNode }) {
                 existing.id,
                 {
                     title,
-                    content: html,
-                    importMarkdown: text,
+                    content: text,
                     parentId,
                     type: "file",
                 },
@@ -151,8 +149,7 @@ export function ImportProvider({ children }: { children: React.ReactNode }) {
         await postPage(
             {
                 title,
-                content: html,
-                importMarkdown: text,
+                content: text,
                 parentId,
                 type: "file",
             },
@@ -252,15 +249,13 @@ export function ImportProvider({ children }: { children: React.ReactNode }) {
 
             const markdown = await zipFile.async("string");
             const title = fileName.replace(/\.md$/i, "").replace(/\.txt$/i, "");
-            const html = markdownToImportHtml(markdown);
             const existing = pages.find((p) => p.type === "file" && p.parentId === parentId && (p.title || "").trim() === title.trim());
             if (existing) {
                 await putPage(
                     existing.id,
                     {
                         title,
-                        content: html,
-                        importMarkdown: markdown,
+                        content: markdown,
                         parentId,
                         type: "file",
                     },
@@ -270,8 +265,7 @@ export function ImportProvider({ children }: { children: React.ReactNode }) {
                 await postPage(
                     {
                         title,
-                        content: html,
-                        importMarkdown: markdown,
+                        content: markdown,
                         parentId,
                         type: "file",
                     },