✨ Use SQLite instead of JSON storage

frontend/bindings/voidraft/internal/models/models.ts

@@ -159,27 +159,32 @@ export class ConfigMetadata {
 }
 
 /**
- * Document 表示一个文档
+ * Document 表示一个文档（使用自增主键）
  */
 export class Document {
-    /**
-     * 元数据
-     */
-    "meta": DocumentMeta;
-
-    /**
-     * 文档内容
-     */
+    "id": number;
+    "title": string;
     "content": string;
+    "createdAt": time$0.Time;
+    "updatedAt": time$0.Time;
 
     /** Creates a new Document instance. */
     constructor($$source: Partial<Document> = {}) {
-        if (!("meta" in $$source)) {
-            this["meta"] = (new DocumentMeta());
+        if (!("id" in $$source)) {
+            this["id"] = 0;
+        }
+        if (!("title" in $$source)) {
+            this["title"] = "";
         }
         if (!("content" in $$source)) {
             this["content"] = "";
         }
+        if (!("createdAt" in $$source)) {
+            this["createdAt"] = null;
+        }
+        if (!("updatedAt" in $$source)) {
+            this["updatedAt"] = null;
+        }
 
         Object.assign(this, $$source);
     }
@@ -188,66 +193,11 @@ export class Document {
      * Creates a new Document instance from a string or object.
      */
     static createFrom($$source: any = {}): Document {
-        const $$createField0_0 = $$createType5;
         let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
-        if ("meta" in $$parsedSource) {
-            $$parsedSource["meta"] = $$createField0_0($$parsedSource["meta"]);
-        }
         return new Document($$parsedSource as Partial<Document>);
     }
 }
 
-/**
- * DocumentMeta 文档元数据
- */
-export class DocumentMeta {
-    /**
-     * 文档唯一标识
-     */
-    "id": string;
-
-    /**
-     * 文档标题
-     */
-    "title": string;
-
-    /**
-     * 最后更新时间
-     */
-    "lastUpdated": time$0.Time;
-
-    /**
-     * 创建时间
-     */
-    "createdAt": time$0.Time;
-
-    /** Creates a new DocumentMeta instance. */
-    constructor($$source: Partial<DocumentMeta> = {}) {
-        if (!("id" in $$source)) {
-            this["id"] = "";
-        }
-        if (!("title" in $$source)) {
-            this["title"] = "";
-        }
-        if (!("lastUpdated" in $$source)) {
-            this["lastUpdated"] = null;
-        }
-        if (!("createdAt" in $$source)) {
-            this["createdAt"] = null;
-        }
-
-        Object.assign(this, $$source);
-    }
-
-    /**
-     * Creates a new DocumentMeta instance from a string or object.
-     */
-    static createFrom($$source: any = {}): DocumentMeta {
-        let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
-        return new DocumentMeta($$parsedSource as Partial<DocumentMeta>);
-    }
-}
-
 /**
  * EditingConfig 编辑设置配置
  */
@@ -380,7 +330,7 @@ export class Extension {
      * Creates a new Extension instance from a string or object.
      */
     static createFrom($$source: any = {}): Extension {
-        const $$createField3_0 = $$createType6;
+        const $$createField3_0 = $$createType5;
         let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
         if ("config" in $$parsedSource) {
             $$parsedSource["config"] = $$createField3_0($$parsedSource["config"]);
@@ -508,7 +458,7 @@ export class GeneralConfig {
      * Creates a new GeneralConfig instance from a string or object.
      */
     static createFrom($$source: any = {}): GeneralConfig {
-        const $$createField5_0 = $$createType8;
+        const $$createField5_0 = $$createType7;
         let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
         if ("globalHotkey" in $$parsedSource) {
             $$parsedSource["globalHotkey"] = $$createField5_0($$parsedSource["globalHotkey"]);
@@ -956,8 +906,8 @@ export class KeyBindingConfig {
      * Creates a new KeyBindingConfig instance from a string or object.
      */
     static createFrom($$source: any = {}): KeyBindingConfig {
-        const $$createField0_0 = $$createType10;
-        const $$createField1_0 = $$createType11;
+        const $$createField0_0 = $$createType9;
+        const $$createField1_0 = $$createType10;
         let $$parsedSource = typeof $$source === 'string' ? JSON.parse($$source) : $$source;
         if ("keyBindings" in $$parsedSource) {
             $$parsedSource["keyBindings"] = $$createField0_0($$parsedSource["keyBindings"]);
@@ -1110,15 +1060,14 @@ const $$createType1 = EditingConfig.createFrom;
 const $$createType2 = AppearanceConfig.createFrom;
 const $$createType3 = UpdatesConfig.createFrom;
 const $$createType4 = ConfigMetadata.createFrom;
-const $$createType5 = DocumentMeta.createFrom;
-var $$createType6 = (function $$initCreateType6(...args): any {
-    if ($$createType6 === $$initCreateType6) {
-        $$createType6 = $$createType7;
+var $$createType5 = (function $$initCreateType5(...args): any {
+    if ($$createType5 === $$initCreateType5) {
+        $$createType5 = $$createType6;
     }
-    return $$createType6(...args);
+    return $$createType5(...args);
 });
-const $$createType7 = $Create.Map($Create.Any, $Create.Any);
-const $$createType8 = HotkeyCombo.createFrom;
-const $$createType9 = KeyBinding.createFrom;
-const $$createType10 = $Create.Array($$createType9);
-const $$createType11 = KeyBindingMetadata.createFrom;
+const $$createType6 = $Create.Map($Create.Any, $Create.Any);
+const $$createType7 = HotkeyCombo.createFrom;
+const $$createType8 = KeyBinding.createFrom;
+const $$createType9 = $Create.Array($$createType8);
+const $$createType10 = KeyBindingMetadata.createFrom;

frontend/bindings/voidraft/internal/services/configservice.ts

@@ -42,14 +42,6 @@ export function ResetConfig(): Promise<void> & { cancel(): void } {
     return $resultPromise;
 }
 
-/**
- * ServiceShutdown 关闭服务
- */
-export function ServiceShutdown(): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(3963562361) as any;
-    return $resultPromise;
-}
-
 /**
  * Set 设置配置项
  */

frontend/bindings/voidraft/internal/services/documentservice.ts

@@ -2,7 +2,7 @@
 // This file is automatically generated. DO NOT EDIT
 
 /**
- * DocumentService 提供文档管理功能
+ * DocumentService provides document management functionality
  * @module
  */
 
@@ -15,18 +15,10 @@ import {Call as $Call, Create as $Create} from "@wailsio/runtime";
 import * as models$0 from "../models/models.js";
 
 /**
- * ForceSave 强制保存
+ * CreateDocument creates a new document and returns the created document with ID
  */
-export function ForceSave(): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(2767091023) as any;
-    return $resultPromise;
-}
-
-/**
- * GetActiveDocument 获取活动文档
- */
-export function GetActiveDocument(): Promise<models$0.Document | null> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(1785823398) as any;
+export function CreateDocument(title: string): Promise<models$0.Document | null> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(3360680842, title) as any;
     let $typingPromise = $resultPromise.then(($result: any) => {
         return $$createType1($result);
     }) as any;
@@ -35,45 +27,70 @@ export function GetActiveDocument(): Promise<models$0.Document | null> & { cance
 }
 
 /**
- * Initialize 初始化服务
+ * DeleteDocument deletes a document (not allowed if it's the only document)
  */
-export function Initialize(): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(3418008221) as any;
+export function DeleteDocument(id: number): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(412287269, id) as any;
     return $resultPromise;
 }
 
 /**
- * OnDataPathChanged 处理数据路径变更
+ * GetDocumentByID gets a document by ID
  */
-export function OnDataPathChanged(oldPath: string, newPath: string): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(269349439, oldPath, newPath) as any;
+export function GetDocumentByID(id: number): Promise<models$0.Document | null> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(3468193232, id) as any;
+    let $typingPromise = $resultPromise.then(($result: any) => {
+        return $$createType1($result);
+    }) as any;
+    $typingPromise.cancel = $resultPromise.cancel.bind($resultPromise);
+    return $typingPromise;
+}
+
+/**
+ * GetFirstDocumentID gets the first document's ID for frontend initialization
+ */
+export function GetFirstDocumentID(): Promise<number> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(2970773833) as any;
     return $resultPromise;
 }
 
 /**
- * ReloadDocument 重新加载文档
+ * ListAllDocumentsMeta lists all document metadata
  */
-export function ReloadDocument(): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(3093415283) as any;
+export function ListAllDocumentsMeta(): Promise<(models$0.Document | null)[]> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(3073950297) as any;
+    let $typingPromise = $resultPromise.then(($result: any) => {
+        return $$createType2($result);
+    }) as any;
+    $typingPromise.cancel = $resultPromise.cancel.bind($resultPromise);
+    return $typingPromise;
+}
+
+/**
+ * OnDataPathChanged handles data path changes
+ */
+export function OnDataPathChanged(): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(269349439) as any;
     return $resultPromise;
 }
 
 /**
- * ServiceShutdown 关闭服务
+ * UpdateDocumentContent updates the content of a document
  */
-export function ServiceShutdown(): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(638578044) as any;
+export function UpdateDocumentContent(id: number, content: string): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(3251897116, id, content) as any;
     return $resultPromise;
 }
 
 /**
- * UpdateActiveDocumentContent 更新文档内容
+ * UpdateDocumentTitle updates the title of a document
  */
-export function UpdateActiveDocumentContent(content: string): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(1486276638, content) as any;
+export function UpdateDocumentTitle(id: number, title: string): Promise<void> & { cancel(): void } {
+    let $resultPromise = $Call.ByID(2045530459, id, title) as any;
     return $resultPromise;
 }
 
 // Private type creation functions
 const $$createType0 = models$0.Document.createFrom;
 const $$createType1 = $Create.Nullable($$createType0);
+const $$createType2 = $Create.Array($$createType1);

frontend/bindings/voidraft/internal/services/extensionservice.ts

@@ -42,14 +42,6 @@ export function ResetExtensionToDefault(id: models$0.ExtensionID): Promise<void>
     return $resultPromise;
 }
 
-/**
- * ServiceShutdown 关闭服务
- */
-export function ServiceShutdown(): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(4127635746) as any;
-    return $resultPromise;
-}
-
 /**
  * UpdateExtensionEnabled 更新扩展启用状态
  */

frontend/bindings/voidraft/internal/services/hotkeyservice.ts

@@ -54,7 +54,7 @@ export function RegisterHotkey(hotkey: models$0.HotkeyCombo | null): Promise<voi
 }
 
 /**
- * ServiceShutdown 关闭服务
+ * OnShutdown 关闭服务
  */
 export function ServiceShutdown(): Promise<void> & { cancel(): void } {
     let $resultPromise = $Call.ByID(157291181) as any;

frontend/bindings/voidraft/internal/services/keybindingservice.ts

@@ -38,14 +38,6 @@ export function GetKeyBindingConfig(): Promise<models$0.KeyBindingConfig | null>
     return $typingPromise;
 }
 
-/**
- * ServiceShutdown 关闭服务
- */
-export function ServiceShutdown(): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(1610182855) as any;
-    return $resultPromise;
-}
-
 // Private type creation functions
 const $$createType0 = models$0.KeyBinding.createFrom;
 const $$createType1 = $Create.Array($$createType0);

frontend/bindings/voidraft/internal/services/migrationservice.ts

@@ -42,13 +42,5 @@ export function MigrateDirectory(srcPath: string, dstPath: string): Promise<void
     return $resultPromise;
 }
 
-/**
- * ServiceShutdown 服务关闭
- */
-export function ServiceShutdown(): Promise<void> & { cancel(): void } {
-    let $resultPromise = $Call.ByID(3472042605) as any;
-    return $resultPromise;
-}
-
 // Private type creation functions
 const $$createType0 = $models.MigrationProgress.createFrom;

frontend/src/stores/documentStore.ts

@@ -4,103 +4,113 @@ import {DocumentService} from '@/../bindings/voidraft/internal/services';
 import {Document} from '@/../bindings/voidraft/internal/models/models';
 
 export const useDocumentStore = defineStore('document', () => {
-  // 状态
-  const activeDocument = ref<Document | null>(null);
-  const isLoading = ref(false);
-  const isSaving = ref(false);
-  const lastSaved = ref<Date | null>(null);
-
-  // 计算属性
-  const documentContent = computed(() => activeDocument.value?.content ?? '');
-  const documentTitle = computed(() => activeDocument.value?.meta?.title ?? '');
-  const hasActiveDocument = computed(() => !!activeDocument.value);
-  const isSaveInProgress = computed(() => isSaving.value);
-  const lastSavedTime = computed(() => lastSaved.value);
-
-  // 加载文档
-  const loadDocument = async (): Promise<Document | null> => {
-    if (isLoading.value) return null;
-    
-    isLoading.value = true;
-    try {
-      const doc = await DocumentService.GetActiveDocument();
-      activeDocument.value = doc;
-      return doc;
-    } catch (error) {
-      return null;
-    } finally {
-      isLoading.value = false;
-    }
-  };
-
-  // 保存文档
-  const saveDocument = async (content: string): Promise<boolean> => {
-    if (isSaving.value) return false;
-    
-    isSaving.value = true;
-    try {
-      await DocumentService.UpdateActiveDocumentContent(content);
-      lastSaved.value = new Date();
-      
-      // 更新本地副本
-      if (activeDocument.value) {
-        activeDocument.value.content = content;
-        activeDocument.value.meta.lastUpdated = lastSaved.value;
-      }
-      
-      return true;
-    } catch (error) {
-      return false;
-    } finally {
-      isSaving.value = false;
-    }
-  };
-
-  // 强制保存文档到磁盘
-  const forceSaveDocument = async (): Promise<boolean> => {
-    if (isSaving.value) return false;
-    
-    isSaving.value = true;
-    try {
-      await DocumentService.ForceSave();
-      lastSaved.value = new Date();
-      
-      // 更新时间戳
-      if (activeDocument.value) {
-        activeDocument.value.meta.lastUpdated = lastSaved.value;
-      }
-      
-      return true;
-    } catch (error) {
-      return false;
-    } finally {
-      isSaving.value = false;
-    }
-  };
-
-  // 初始化
-  const initialize = async (): Promise<void> => {
-    await loadDocument();
-  };
-
-  return {
     // 状态
-    activeDocument,
-    isLoading,
-    isSaving,
-    lastSaved,
+    const currentDocument = ref<Document | null>(null);
+    const isLoading = ref(false);
+    const isSaving = ref(false);
+    const lastSaved = ref<Date | null>(null);
 
     // 计算属性
-    documentContent,
-    documentTitle,
-    hasActiveDocument,
-    isSaveInProgress,
-    lastSavedTime,
+    const documentContent = computed(() => currentDocument.value?.content ?? '');
+    const documentTitle = computed(() => currentDocument.value?.title ?? '');
+    const hasDocument = computed(() => !!currentDocument.value);
+    const isSaveInProgress = computed(() => isSaving.value);
+    const lastSavedTime = computed(() => lastSaved.value);
 
-    // 方法
-    loadDocument,
-    saveDocument,
-    forceSaveDocument,
-    initialize
-  };
+    // 加载文档
+    const loadDocument = async (documentId = 1): Promise<Document | null> => {
+        if (isLoading.value) return currentDocument.value;
+
+        isLoading.value = true;
+        try {
+            const doc = await DocumentService.GetDocumentByID(documentId);
+            if (doc) {
+                currentDocument.value = doc;
+                return doc;
+            }
+            return null;
+        } catch (error) {
+            return null;
+        } finally {
+            isLoading.value = false;
+        }
+    };
+
+    // 保存文档内容
+    const saveDocumentContent = async (content: string): Promise<boolean> => {
+        // 如果内容没有变化，直接返回成功
+        if (currentDocument.value?.content === content) {
+            return true;
+        }
+
+        // 如果正在保存中，直接返回
+        if (isSaving.value) {
+            return false;
+        }
+
+        isSaving.value = true;
+        try {
+            const documentId = currentDocument.value?.id || 1;
+            await DocumentService.UpdateDocumentContent(documentId, content);
+            
+            const now = new Date();
+            lastSaved.value = now;
+
+            // 更新本地副本
+            if (currentDocument.value) {
+                currentDocument.value.content = content;
+                currentDocument.value.updatedAt = now;
+            }
+
+            return true;
+        } catch (error) {
+            return false;
+        } finally {
+            isSaving.value = false;
+        }
+    };
+
+    // 保存文档标题
+    const saveDocumentTitle = async (title: string): Promise<boolean> => {
+        if (!currentDocument.value || currentDocument.value.title === title) {
+            return true;
+        }
+
+        try {
+            await DocumentService.UpdateDocumentTitle(currentDocument.value.id, title);
+            const now = new Date();
+            lastSaved.value = now;
+            currentDocument.value.title = title;
+            currentDocument.value.updatedAt = now;
+            return true;
+        } catch (error) {
+            return false;
+        }
+    };
+
+    // 初始化
+    const initialize = async (): Promise<void> => {
+        await loadDocument();
+    };
+
+    return {
+        // 状态
+        currentDocument,
+        isLoading,
+        isSaving,
+        lastSaved,
+
+        // 计算属性
+        documentContent,
+        documentTitle,
+        hasDocument,
+        isSaveInProgress,
+        lastSavedTime,
+
+        // 方法
+        loadDocument,
+        saveDocumentContent,
+        saveDocumentTitle,
+        initialize
+    };
 }); 

frontend/src/stores/editorStore.ts

@@ -5,16 +5,15 @@ import {EditorState, Extension} from '@codemirror/state';
 import {useConfigStore} from './configStore';
 import {useDocumentStore} from './documentStore';
 import {useThemeStore} from './themeStore';
-import {useKeybindingStore} from './keybindingStore';
 import {SystemThemeType} from '@/../bindings/voidraft/internal/models/models';
-import {DocumentService, ExtensionService} from '@/../bindings/voidraft/internal/services';
+import {ExtensionService} from '@/../bindings/voidraft/internal/services';
 import {ensureSyntaxTree} from "@codemirror/language"
 import {createBasicSetup} from '@/views/editor/basic/basicSetup';
 import {createThemeExtension, updateEditorTheme} from '@/views/editor/basic/themeExtension';
 import {getTabExtensions, updateTabConfig} from '@/views/editor/basic/tabExtension';
 import {createFontExtensionFromBackend, updateFontConfig} from '@/views/editor/basic/fontExtension';
 import {createStatsUpdateExtension} from '@/views/editor/basic/statsExtension';
-import {createAutoSavePlugin, createSaveShortcutPlugin} from '@/views/editor/basic/autoSaveExtension';
+import {createAutoSavePlugin} from '@/views/editor/basic/autoSaveExtension';
 import {createDynamicKeymapExtension, updateKeymapExtension} from '@/views/editor/keymap';
 import {createDynamicExtensions, getExtensionManager, setExtensionManagerView} from '@/views/editor/manager';
 import {useExtensionStore} from './extensionStore';
@@ -128,21 +127,10 @@ export const useEditorStore = defineStore('editor', () => {
             updateDocumentStats
         );
 
-        // 创建保存快捷键插件
-        const saveShortcutExtension = createSaveShortcutPlugin(() => {
-            if (editorView.value) {
-                handleManualSave();
-            }
-        });
 
         // 创建自动保存插件
         const autoSaveExtension = createAutoSavePlugin({
-            debounceDelay: 300, // 300毫秒的输入防抖
-            onSave: (success) => {
-                if (success) {
-                    documentStore.lastSaved = new Date();
-                }
-            }
+            debounceDelay: configStore.config.editing.autoSaveDelay
         });
         // 代码块功能
         const codeBlockExtension = createCodeBlockExtension({
@@ -164,7 +152,6 @@ export const useEditorStore = defineStore('editor', () => {
             ...tabExtensions,
             fontExtension,
             statsExtension,
-            saveShortcutExtension,
             autoSaveExtension,
             codeBlockExtension,
             ...dynamicExtensions
@@ -220,19 +207,6 @@ export const useEditorStore = defineStore('editor', () => {
         });
     };
 
-    // 手动保存文档
-    const handleManualSave = async () => {
-        if (!editorView.value) return;
-
-        const view = editorView.value as EditorView;
-        const content = view.state.doc.toString();
-
-        // 先更新内容
-        await DocumentService.UpdateActiveDocumentContent(content);
-        // 然后调用强制保存方法
-        await documentStore.forceSaveDocument();
-    };
-
     // 销毁编辑器
     const destroyEditor = () => {
         if (editorView.value) {
@@ -321,7 +295,6 @@ export const useEditorStore = defineStore('editor', () => {
         createEditor,
         reconfigureTabSettings,
         reconfigureFontSettings,
-        handleManualSave,
         destroyEditor,
         updateExtension
     };

frontend/src/views/editor/basic/autoSaveExtension.ts

@@ -1,98 +1,109 @@
 import { EditorView, ViewPlugin, ViewUpdate } from '@codemirror/view';
-import { DocumentService } from '@/../bindings/voidraft/internal/services';
-import { useDebounceFn } from '@vueuse/core';
+import { useDocumentStore } from '@/stores/documentStore';
 
-// 定义自动保存配置选项
+// 自动保存配置选项
 export interface AutoSaveOptions {
-  // 保存回调
-  onSave?: (success: boolean) => void;
-  // 内容变更延迟传递（毫秒）- 输入时不会立即发送，有一个小延迟，避免频繁调用后端
+  // 防抖延迟（毫秒）
   debounceDelay?: number;
+  // 保存状态回调
+  onSaveStart?: () => void;
+  onSaveSuccess?: () => void;
+  onSaveError?: () => void;
+}
+
+/**
+ * 简单防抖函数
+ */
+function debounce<T extends (...args: any[]) => any>(
+  func: T,
+  delay: number
+): T & { cancel: () => void } {
+  let timeoutId: number | null = null;
+  
+  const debounced = ((...args: Parameters<T>) => {
+    if (timeoutId !== null) {
+      clearTimeout(timeoutId);
+    }
+    
+    timeoutId = window.setTimeout(() => {
+      timeoutId = null;
+      func(...args);
+    }, delay);
+  }) as T & { cancel: () => void };
+  
+  debounced.cancel = () => {
+    if (timeoutId !== null) {
+      clearTimeout(timeoutId);
+      timeoutId = null;
+    }
+  };
+  
+  return debounced;
 }
 
 /**
  * 创建自动保存插件
- * 
- * @param options 配置选项
- * @returns EditorView.Plugin
  */
 export function createAutoSavePlugin(options: AutoSaveOptions = {}) {
   const {
-    onSave = () => {},
-    debounceDelay = 2000
+    debounceDelay = 2000,
+    onSaveStart = () => {},
+    onSaveSuccess = () => {},
+    onSaveError = () => {}
   } = options;
 
   return ViewPlugin.fromClass(
-    class {
-      private isActive: boolean = true;
-      private isSaving: boolean = false;
-      private readonly contentUpdateFn: (view: EditorView) => void;
+    class AutoSavePlugin {
+      private documentStore = useDocumentStore();
+      private debouncedSave: ((content: string) => void) & { cancel: () => void };
+      private isDestroyed = false;
+      private lastContent = '';
 
       constructor(private view: EditorView) {
-        // 创建内容更新函数，简单传递内容给后端
-        this.contentUpdateFn = this.createDebouncedUpdateFn(debounceDelay);
+        this.lastContent = view.state.doc.toString();
+        this.debouncedSave = debounce(
+          (content: string) => this.performSave(content),
+          debounceDelay
+        );
       }
 
-      /**
-       * 创建防抖的内容更新函数
-       */
-      private createDebouncedUpdateFn(delay: number): (view: EditorView) => void {
-        // 使用VueUse的防抖函数创建一个新函数
-        return useDebounceFn(async (view: EditorView) => {
-          // 如果插件已不活跃或正在保存中，不发送
-          if (!this.isActive || this.isSaving) return;
+      private async performSave(content: string): Promise<void> {
+        if (this.isDestroyed) return;
 
-          this.isSaving = true;
-          const content = view.state.doc.toString();
+        try {
+          onSaveStart();
+          const success = await this.documentStore.saveDocumentContent(content);
           
-          try {
-            // 简单将内容传递给后端，让后端处理保存策略
-            await DocumentService.UpdateActiveDocumentContent(content);
-            onSave(true);
-          } catch (err) {
-            // 静默处理错误，不在控制台打印
-            onSave(false);
-          } finally {
-            this.isSaving = false;
+          if (success) {
+            this.lastContent = content;
+            onSaveSuccess();
+          } else {
+            onSaveError();
           }
-        }, delay);
+        } catch (error) {
+          onSaveError();
+        }
       }
 
       update(update: ViewUpdate) {
-        // 如果内容没有变化，直接返回
-        if (!update.docChanged) return;
+        if (!update.docChanged || this.isDestroyed) return;
 
-        // 调用防抖函数
-        this.contentUpdateFn(this.view);
+        const newContent = this.view.state.doc.toString();
+        if (newContent === this.lastContent) return;
+
+        this.debouncedSave(newContent);
       }
 
       destroy() {
-        // 标记插件不再活跃
-        this.isActive = false;
+        this.isDestroyed = true;
+        this.debouncedSave.cancel();
         
-        // 静默发送最终内容，忽略错误
-        const content = this.view.state.doc.toString();
-        DocumentService.UpdateActiveDocumentContent(content).then();
+        // 如果内容有变化，立即保存
+        const currentContent = this.view.state.doc.toString();
+        if (currentContent !== this.lastContent) {
+          this.documentStore.saveDocumentContent(currentContent).catch(() => {});
+        }
       }
     }
   );
 }
-
-/**
- * 创建处理保存快捷键的插件
- * @param onSave 保存回调
- * @returns EditorView.Plugin
- */
-export function createSaveShortcutPlugin(onSave: () => void) {
-  return EditorView.domEventHandlers({
-    keydown: (event) => {
-      // Ctrl+S / Cmd+S
-      if ((event.ctrlKey || event.metaKey) && event.key === 's') {
-        event.preventDefault();
-        onSave();
-        return true;
-      }
-      return false;
-    }
-  });
-}

go.mod

@@ -13,6 +13,7 @@ require (
 	github.com/knadh/koanf/v2 v2.2.1
 	github.com/wailsapp/wails/v3 v3.0.0-alpha.9
 	golang.org/x/sys v0.33.0
+	modernc.org/sqlite v1.21.0
 )
 
 require (
@@ -23,6 +24,7 @@ require (
 	github.com/bep/debounce v1.2.1 // indirect
 	github.com/cloudflare/circl v1.6.1 // indirect
 	github.com/cyphar/filepath-securejoin v0.4.1 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/ebitengine/purego v0.8.4 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/fatih/structs v1.1.0 // indirect
@@ -38,6 +40,7 @@ require (
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
 	github.com/jchv/go-winloader v0.0.0-20250406163304-c1995be93bd1 // indirect
+	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
 	github.com/kevinburke/ssh_config v1.2.0 // indirect
 	github.com/knadh/koanf/maps v0.1.2 // indirect
 	github.com/leaanthony/go-ansi-parser v1.6.1 // indirect
@@ -50,6 +53,7 @@ require (
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/pjbgf/sha1cd v0.3.2 // indirect
 	github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/samber/lo v1.51.0 // indirect
 	github.com/sergi/go-diff v1.4.0 // indirect
@@ -59,8 +63,20 @@ require (
 	github.com/xanzy/ssh-agent v0.3.3 // indirect
 	golang.org/x/crypto v0.39.0 // indirect
 	golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6 // indirect
+	golang.org/x/mod v0.25.0 // indirect
 	golang.org/x/net v0.41.0 // indirect
+	golang.org/x/sync v0.15.0 // indirect
 	golang.org/x/text v0.26.0 // indirect
+	golang.org/x/tools v0.33.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/warnings.v0 v0.1.2 // indirect
+	lukechampine.com/uint128 v1.2.0 // indirect
+	modernc.org/cc/v3 v3.40.0 // indirect
+	modernc.org/ccgo/v3 v3.16.13 // indirect
+	modernc.org/libc v1.22.3 // indirect
+	modernc.org/mathutil v1.5.0 // indirect
+	modernc.org/memory v1.5.0 // indirect
+	modernc.org/opt v0.1.3 // indirect
+	modernc.org/strutil v1.1.3 // indirect
+	modernc.org/token v1.0.1 // indirect
 )

go.sum

@@ -22,6 +22,8 @@ github.com/cyphar/filepath-securejoin v0.4.1/go.mod h1:Sdj7gXlvMcPZsbhwhQ33GguGL
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/ebitengine/purego v0.8.4 h1:CF7LEKg5FFOsASUj0+QwaXf8Ht6TlFxg09+S9wz0omw=
 github.com/ebitengine/purego v0.8.4/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/elazarl/goproxy v1.7.2 h1:Y2o6urb7Eule09PjlhQRGNsqRfPmYI3KKQLFpCAV3+o=
@@ -57,12 +59,16 @@ github.com/google/go-github/v63 v63.0.0 h1:13xwK/wk9alSokujB9lJkuzdmQuVn2QCPeck7
 github.com/google/go-github/v63 v63.0.0/go.mod h1:IqbcrgUmIcEaioWrGYei/09o+ge5vhffGOcxrO0AfmA=
 github.com/google/go-querystring v1.1.0 h1:AnCroh3fv4ZBgVIf1Iwtovgjaw/GiKJo8M8yD/fhyJ8=
 github.com/google/go-querystring v1.1.0/go.mod h1:Kcdr2DB4koayq7X8pmAG4sNG59So17icRSOU623lUBU=
+github.com/google/pprof v0.0.0-20221118152302-e6195bd50e26 h1:Xim43kblpZXfIBQsbuBVKCudVG457BR2GZFIz3uw3hQ=
+github.com/google/pprof v0.0.0-20221118152302-e6195bd50e26/go.mod h1:dDKJzRmX4S37WGHujM7tX//fmj1uioxKzKxz3lo4HJo=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 h1:BQSFePA1RWJOlocH6Fxy8MmwDt+yVQYULKfN0RoTN8A=
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99/go.mod h1:1lJo3i6rXxKeerYnT8Nvf0QmHCRC1n8sfWVwXF2Frvo=
 github.com/jchv/go-winloader v0.0.0-20250406163304-c1995be93bd1 h1:njuLRcjAuMKr7kI3D85AXWkw6/+v9PwtV6M6o11sWHQ=
 github.com/jchv/go-winloader v0.0.0-20250406163304-c1995be93bd1/go.mod h1:alcuEEnZsY1WQsagKhZDsoPCRoOijYqhZvPwLG0kzVs=
+github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs=
+github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
 github.com/kevinburke/ssh_config v1.2.0 h1:x584FjTGwHzMwvHx18PXxbBVzfnxogHaAReU4gf13a4=
 github.com/kevinburke/ssh_config v1.2.0/go.mod h1:CT57kijsi8u/K/BOFA39wgDQJ9CxiF4nAY/ojJ6r6mM=
 github.com/knadh/koanf/maps v0.1.2 h1:RBfmAW5CnZT+PJ1CVc1QSJKf4Xu9kxfQgYVQSu8hpbo=
@@ -95,6 +101,8 @@ github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHP
 github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mattn/go-sqlite3 v1.14.16 h1:yOQRA0RpS5PFz/oikGwBEqvAWhWg5ufRz4ETLjwpU1Y=
+github.com/mattn/go-sqlite3 v1.14.16/go.mod h1:2eHXhiwb8IkHr+BDWZGa96P6+rkvnG63S2DGjv9HUNg=
 github.com/mitchellh/copystructure v1.2.0 h1:vpKXTN4ewci03Vljg/q9QvCGUDttBOGBIa15WveJJGw=
 github.com/mitchellh/copystructure v1.2.0/go.mod h1:qLl+cE2AmVv+CoeAwDPye/v+N2HKCj9FbZEVFJRxO9s=
 github.com/mitchellh/reflectwalk v1.0.2 h1:G2LzWKi524PWgd3mLHV8Y5k7s6XUvT0Gef6zxSIeXaQ=
@@ -109,6 +117,9 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
@@ -139,10 +150,14 @@ golang.org/x/crypto v0.39.0 h1:SHs+kF4LP+f+p14esP5jAoDpHU8Gu/v9lFRK6IT5imM=
 golang.org/x/crypto v0.39.0/go.mod h1:L+Xg3Wf6HoL4Bn4238Z6ft6KfEpN0tJGo53AAPC632U=
 golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6 h1:y5zboxd6LQAqYIhHnB48p0ByQ/GnQx2BE33L8BOHQkI=
 golang.org/x/exp v0.0.0-20250506013437-ce4c2cf36ca6/go.mod h1:U6Lno4MTRCDY+Ba7aCcauB9T60gsv5s4ralQzP72ZoQ=
+golang.org/x/mod v0.25.0 h1:n7a+ZbQKQA/Ysbyb0/6IbB1H/X41mKgbhfv7AfG/44w=
+golang.org/x/mod v0.25.0/go.mod h1:IXM97Txy2VM4PJ3gI61r1YEk/gAj6zAHN3AdZt6S9Ww=
 golang.org/x/net v0.0.0-20210505024714-0287a6fb4125/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.41.0 h1:vBTly1HeNPEn3wtREYfy4GZ/NECgw2Cnl+nK6Nz3uvw=
 golang.org/x/net v0.41.0/go.mod h1:B/K4NNqkfmg07DQYrbwvSluqCJOOXwUjeb/5lOisjbA=
+golang.org/x/sync v0.15.0 h1:KWH3jNZsfyT6xfAfKiz6MRNmd46ByHDYaZ7KSkCtdW8=
+golang.org/x/sync v0.15.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200810151505-1b9f1253b3ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -161,6 +176,8 @@ golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
 golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+golang.org/x/tools v0.33.0 h1:4qz2S3zmRxbGIhDIAgjxvFutSvH5EfnsYrRBj0UI0bc=
+golang.org/x/tools v0.33.0/go.mod h1:CIJMaWEY88juyUfo7UbgPqbC8rU2OqfAV1h2Qp0oMYI=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -174,3 +191,31 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+lukechampine.com/uint128 v1.2.0 h1:mBi/5l91vocEN8otkC5bDLhi2KdCticRiwbdB0O+rjI=
+lukechampine.com/uint128 v1.2.0/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
+modernc.org/cc/v3 v3.40.0 h1:P3g79IUS/93SYhtoeaHW+kRCIrYaxJ27MFPv+7kaTOw=
+modernc.org/cc/v3 v3.40.0/go.mod h1:/bTg4dnWkSXowUO6ssQKnOV0yMVxDYNIsIrzqTFDGH0=
+modernc.org/ccgo/v3 v3.16.13 h1:Mkgdzl46i5F/CNR/Kj80Ri59hC8TKAhZrYSaqvkwzUw=
+modernc.org/ccgo/v3 v3.16.13/go.mod h1:2Quk+5YgpImhPjv2Qsob1DnZ/4som1lJTodubIcoUkY=
+modernc.org/ccorpus v1.11.6 h1:J16RXiiqiCgua6+ZvQot4yUuUy8zxgqbqEEUuGPlISk=
+modernc.org/ccorpus v1.11.6/go.mod h1:2gEUTrWqdpH2pXsmTM1ZkjeSrUWDpjMu2T6m29L/ErQ=
+modernc.org/httpfs v1.0.6 h1:AAgIpFZRXuYnkjftxTAZwMIiwEqAfk8aVB2/oA6nAeM=
+modernc.org/httpfs v1.0.6/go.mod h1:7dosgurJGp0sPaRanU53W4xZYKh14wfzX420oZADeHM=
+modernc.org/libc v1.22.3 h1:D/g6O5ftAfavceqlLOFwaZuA5KYafKwmr30A6iSqoyY=
+modernc.org/libc v1.22.3/go.mod h1:MQrloYP209xa2zHome2a8HLiLm6k0UT8CoHpV74tOFw=
+modernc.org/mathutil v1.5.0 h1:rV0Ko/6SfM+8G+yKiyI830l3Wuz1zRutdslNoQ0kfiQ=
+modernc.org/mathutil v1.5.0/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
+modernc.org/memory v1.5.0 h1:N+/8c5rE6EqugZwHii4IFsaJ7MUhoWX07J5tC/iI5Ds=
+modernc.org/memory v1.5.0/go.mod h1:PkUhL0Mugw21sHPeskwZW4D6VscE/GQJOnIpCnW6pSU=
+modernc.org/opt v0.1.3 h1:3XOZf2yznlhC+ibLltsDGzABUGVx8J6pnFMS3E4dcq4=
+modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
+modernc.org/sqlite v1.21.0 h1:4aP4MdUf15i3R3M2mx6Q90WHKz3nZLoz96zlB6tNdow=
+modernc.org/sqlite v1.21.0/go.mod h1:XwQ0wZPIh1iKb5mkvCJ3szzbhk+tykC8ZWqTRTgYRwI=
+modernc.org/strutil v1.1.3 h1:fNMm+oJklMGYfU9Ylcywl0CO5O6nTfaowNsh2wpPjzY=
+modernc.org/strutil v1.1.3/go.mod h1:MEHNA7PdEnEwLvspRMtWTNnp2nnyvMfkimT1NKNAGbw=
+modernc.org/tcl v1.15.1 h1:mOQwiEK4p7HruMZcwKTZPw/aqtGM4aY00uzWhlKKYws=
+modernc.org/tcl v1.15.1/go.mod h1:aEjeGJX2gz1oWKOLDVZ2tnEWLUrIn8H+GFu+akoDhqs=
+modernc.org/token v1.0.1 h1:A3qvTqOwexpfZZeyI0FeGPDlSWX5pjZu9hF4lU+EKWg=
+modernc.org/token v1.0.1/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
+modernc.org/z v1.7.0 h1:xkDw/KepgEjeizO2sNco+hqYkU12taxQFqPEmgm1GWE=
+modernc.org/z v1.7.0/go.mod h1:hVdgNMh8ggTuRG1rGU8x+xGRFfiQUIAw0ZqlPy8+HyQ=

internal/models/config.go

@@ -135,7 +135,7 @@ func NewDefaultAppConfig() *AppConfig {
 			TabSize:         4,
 			TabType:         TabTypeSpaces,
 			// 保存选项
-			AutoSaveDelay: 5000, // 5秒后自动保存
+			AutoSaveDelay: 2000, // 2秒后自动保存
 		},
 		Appearance: AppearanceConfig{
 			Language:    LangZhCN,

internal/models/document.go

@@ -4,38 +4,27 @@ import (
 	"time"
 )
 
-// DocumentMeta 文档元数据
-type DocumentMeta struct {
-	ID          string    `json:"id"`          // 文档唯一标识
-	Title       string    `json:"title"`       // 文档标题
-	LastUpdated time.Time `json:"lastUpdated"` // 最后更新时间
-	CreatedAt   time.Time `json:"createdAt"`   // 创建时间
-}
-
-// Document 表示一个文档
+// Document 表示一个文档（使用自增主键）
 type Document struct {
-	Meta    DocumentMeta `json:"meta"`    // 元数据
-	Content string       `json:"content"` // 文档内容
+	ID        int64     `json:"id" db:"id"`
+	Title     string    `json:"title" db:"title"`
+	Content   string    `json:"content" db:"content"`
+	CreatedAt time.Time `json:"createdAt" db:"created_at"`
+	UpdatedAt time.Time `json:"updatedAt" db:"updated_at"`
 }
 
-// DocumentInfo 文档信息（不包含内容，用于列表展示）
-type DocumentInfo struct {
-	ID          string    `json:"id"`          // 文档ID
-	Title       string    `json:"title"`       // 文档标题
-	LastUpdated time.Time `json:"lastUpdated"` // 最后更新时间
-	Path        string    `json:"path"`        // 文档路径
+// NewDocument 创建新文档（不需要传ID，由数据库自增）
+func NewDocument(title, content string) *Document {
+	now := time.Now()
+	return &Document{
+		Title:     title,
+		Content:   content,
+		CreatedAt: now,
+		UpdatedAt: now,
+	}
 }
 
 // NewDefaultDocument 创建默认文档
 func NewDefaultDocument() *Document {
-	now := time.Now()
-	return &Document{
-		Meta: DocumentMeta{
-			ID:          "default",
-			Title:       "默认文档",
-			LastUpdated: now,
-			CreatedAt:   now,
-		},
-		Content: "∞∞∞text-a\n",
-	}
+	return NewDocument("default", "∞∞∞text-a\n")
 }

internal/services/config_migration_service.go

@@ -132,7 +132,7 @@ func (cms *ConfigMigrationService[T]) checkResourceLimits() error {
 	return nil
 }
 
-// createBackupOptimized 优化的备份创建（单次扫描删除旧备份）
+// createBackupOptimized 优化的备份创建
 func (cms *ConfigMigrationService[T]) createBackupOptimized() (string, error) {
 	if _, err := os.Stat(cms.configPath); os.IsNotExist(err) {
 		return "", nil
@@ -155,7 +155,7 @@ func (cms *ConfigMigrationService[T]) createBackupOptimized() (string, error) {
 	return newBackupPath, copyFile(cms.configPath, newBackupPath)
 }
 
-// tryQuickRecovery 快速恢复检查（避免完整的备份恢复）
+// tryQuickRecovery 快速恢复检查
 func (cms *ConfigMigrationService[T]) tryQuickRecovery(existingConfig *koanf.Koanf) {
 	var testConfig T
 	if existingConfig.Unmarshal("", &testConfig) != nil {
@@ -213,7 +213,7 @@ func (cms *ConfigMigrationService[T]) mergeInPlace(existingConfig *koanf.Koanf,
 		return false, fmt.Errorf("config merge failed: %w", err)
 	}
 
-	// 更新元数据（直接操作，无需重新序列化）
+	// 更新元数据
 	mergeKoanf.Set("metadata.version", cms.targetVersion)
 	mergeKoanf.Set("metadata.lastUpdated", time.Now().Format(time.RFC3339))
 
@@ -249,12 +249,12 @@ func (cms *ConfigMigrationService[T]) atomicWrite(existingConfig *koanf.Koanf, c
 	return existingConfig.Load(&BytesProvider{configBytes}, jsonparser.Parser())
 }
 
-// fastMerge 快速合并函数（优化版本）
+// fastMerge 快速合并函数
 func (cms *ConfigMigrationService[T]) fastMerge(src, dest map[string]interface{}) error {
 	return cms.fastMergeRecursive(src, dest, 0)
 }
 
-// fastMergeRecursive 快速递归合并（单次遍历，最小化反射使用）
+// fastMergeRecursive 快速递归合并
 func (cms *ConfigMigrationService[T]) fastMergeRecursive(src, dest map[string]interface{}, depth int) error {
 	if depth > MaxRecursionDepth {
 		return fmt.Errorf("recursion depth exceeded")

internal/services/config_notification_service.go

@@ -5,6 +5,7 @@ import (
 	"crypto/sha256"
 	"encoding/json"
 	"fmt"
+	"reflect"
 	"sync"
 	"time"
 	"voidraft/internal/models"
@@ -28,6 +29,7 @@ type ConfigChangeCallback func(changeType ConfigChangeType, oldConfig, newConfig
 
 // ConfigListener 配置监听器
 type ConfigListener struct {
+	ID            string                               // 监听器唯一ID
 	Name          string                               // 监听器名称
 	ChangeType    ConfigChangeType                     // 监听的配置变更类型
 	Callback      ConfigChangeCallback                 // 回调函数（现在包含新旧配置）
@@ -45,9 +47,10 @@ type ConfigListener struct {
 
 // ConfigNotificationService 配置通知服务
 type ConfigNotificationService struct {
-	listeners sync.Map           // 使用sync.Map替代普通map+锁
-	logger    *log.LoggerService // 日志服务
-	koanf     *koanf.Koanf       // koanf实例
+	listeners map[ConfigChangeType][]*ConfigListener // 支持多监听器的map
+	mu        sync.RWMutex                           // 监听器map的读写锁
+	logger    *log.LoggerService                     // 日志服务
+	koanf     *koanf.Koanf                           // koanf实例
 	ctx       context.Context
 	cancel    context.CancelFunc
 	wg        sync.WaitGroup
@@ -57,20 +60,19 @@ type ConfigNotificationService struct {
 func NewConfigNotificationService(k *koanf.Koanf, logger *log.LoggerService) *ConfigNotificationService {
 	ctx, cancel := context.WithCancel(context.Background())
 	return &ConfigNotificationService{
-		logger: logger,
-		koanf:  k,
-		ctx:    ctx,
-		cancel: cancel,
+		listeners: make(map[ConfigChangeType][]*ConfigListener),
+		logger:    logger,
+		koanf:     k,
+		ctx:       ctx,
+		cancel:    cancel,
 	}
 }
 
 // RegisterListener 注册配置监听器
 func (cns *ConfigNotificationService) RegisterListener(listener *ConfigListener) error {
-	// 清理已存在的监听器
-	if existingValue, loaded := cns.listeners.LoadAndDelete(listener.ChangeType); loaded {
-		if existing, ok := existingValue.(interface{ cancel() }); ok {
-			existing.cancel()
-		}
+	// 生成唯一ID如果没有提供
+	if listener.ID == "" {
+		listener.ID = fmt.Sprintf("%s_%d", listener.Name, time.Now().UnixNano())
 	}
 
 	// 初始化新监听器
@@ -80,7 +82,11 @@ func (cns *ConfigNotificationService) RegisterListener(listener *ConfigListener)
 		return fmt.Errorf("failed to initialize listener state: %w", err)
 	}
 
-	cns.listeners.Store(listener.ChangeType, listener)
+	// 添加到监听器列表
+	cns.mu.Lock()
+	cns.listeners[listener.ChangeType] = append(cns.listeners[listener.ChangeType], listener)
+	cns.mu.Unlock()
+
 	return nil
 }
 
@@ -92,7 +98,7 @@ func (cns *ConfigNotificationService) initializeListenerState(listener *ConfigLi
 
 	if config := listener.GetConfigFunc(cns.koanf); config != nil {
 		listener.mu.Lock()
-		listener.lastConfig = deepCopyConfig(config)
+		listener.lastConfig = deepCopyConfigReflect(config)
 		listener.lastConfigHash = computeConfigHash(config)
 		listener.mu.Unlock()
 	}
@@ -100,23 +106,59 @@ func (cns *ConfigNotificationService) initializeListenerState(listener *ConfigLi
 	return nil
 }
 
-// UnregisterListener 注销配置监听器
-func (cns *ConfigNotificationService) UnregisterListener(changeType ConfigChangeType) {
-	if value, loaded := cns.listeners.LoadAndDelete(changeType); loaded {
-		if listener, ok := value.(*ConfigListener); ok {
+// UnregisterListener 注销指定ID的配置监听器
+func (cns *ConfigNotificationService) UnregisterListener(changeType ConfigChangeType, listenerID string) {
+	cns.mu.Lock()
+	defer cns.mu.Unlock()
+
+	listeners := cns.listeners[changeType]
+	for i, listener := range listeners {
+		if listener.ID == listenerID {
+			// 取消监听器
+			listener.cancel()
+			// 从切片中移除
+			cns.listeners[changeType] = append(listeners[:i], listeners[i+1:]...)
+			break
+		}
+	}
+
+	// 如果该类型没有监听器了，删除整个条目
+	if len(cns.listeners[changeType]) == 0 {
+		delete(cns.listeners, changeType)
+	}
+}
+
+// UnregisterAllListeners 注销指定类型的所有监听器
+func (cns *ConfigNotificationService) UnregisterAllListeners(changeType ConfigChangeType) {
+	cns.mu.Lock()
+	defer cns.mu.Unlock()
+
+	if listeners, exists := cns.listeners[changeType]; exists {
+		for _, listener := range listeners {
 			listener.cancel()
 		}
+		delete(cns.listeners, changeType)
 	}
 }
 
 // CheckConfigChanges 检查配置变更并通知相关监听器
 func (cns *ConfigNotificationService) CheckConfigChanges() {
-	cns.listeners.Range(func(key, value interface{}) bool {
-		if listener, ok := value.(*ConfigListener); ok {
+	cns.mu.RLock()
+	allListeners := make(map[ConfigChangeType][]*ConfigListener)
+	for changeType, listeners := range cns.listeners {
+		// 创建监听器切片的副本以避免并发访问问题
+		listenersCopy := make([]*ConfigListener, len(listeners))
+		copy(listenersCopy, listeners)
+		allListeners[changeType] = listenersCopy
+	}
+	cns.mu.RUnlock()
+
+	// 检查所有监听器
+	for _, listeners := range allListeners {
+		for _, listener := range listeners {
 			cns.checkAndNotify(listener)
 		}
-		return true
-	})
+	}
 }
 
 // checkAndNotify 检查配置变更并通知
@@ -144,7 +186,7 @@ func (cns *ConfigNotificationService) checkAndNotify(listener *ConfigListener) {
 
 	if hasChanges {
 		listener.mu.Lock()
-		listener.lastConfig = deepCopyConfig(currentConfig)
+		listener.lastConfig = deepCopyConfigReflect(currentConfig)
 		listener.lastConfigHash = currentHash
 		listener.mu.Unlock()
 
@@ -167,7 +209,82 @@ func computeConfigHash(config *models.AppConfig) string {
 	return fmt.Sprintf("%x", hash)
 }
 
-// deepCopyConfig 深拷贝配置对象
+// deepCopyConfigReflect 使用反射实现高效深拷贝
+func deepCopyConfigReflect(src *models.AppConfig) *models.AppConfig {
+	if src == nil {
+		return nil
+	}
+
+	// 使用反射进行深拷贝
+	srcValue := reflect.ValueOf(src).Elem()
+	dstValue := reflect.New(srcValue.Type()).Elem()
+
+	deepCopyValue(srcValue, dstValue)
+
+	return dstValue.Addr().Interface().(*models.AppConfig)
+}
+
+// deepCopyValue 递归深拷贝reflect.Value
+func deepCopyValue(src, dst reflect.Value) {
+	switch src.Kind() {
+	case reflect.Ptr:
+		if src.IsNil() {
+			return
+		}
+		dst.Set(reflect.New(src.Elem().Type()))
+		deepCopyValue(src.Elem(), dst.Elem())
+
+	case reflect.Struct:
+		for i := 0; i < src.NumField(); i++ {
+			if dst.Field(i).CanSet() {
+				deepCopyValue(src.Field(i), dst.Field(i))
+			}
+		}
+
+	case reflect.Slice:
+		if src.IsNil() {
+			return
+		}
+		dst.Set(reflect.MakeSlice(src.Type(), src.Len(), src.Cap()))
+		for i := 0; i < src.Len(); i++ {
+			deepCopyValue(src.Index(i), dst.Index(i))
+		}
+
+	case reflect.Map:
+		if src.IsNil() {
+			return
+		}
+		dst.Set(reflect.MakeMap(src.Type()))
+		for _, key := range src.MapKeys() {
+			srcValue := src.MapIndex(key)
+			dstValue := reflect.New(srcValue.Type()).Elem()
+			deepCopyValue(srcValue, dstValue)
+			dst.SetMapIndex(key, dstValue)
+		}
+
+	case reflect.Interface:
+		if src.IsNil() {
+			return
+		}
+		srcValue := src.Elem()
+		dstValue := reflect.New(srcValue.Type()).Elem()
+		deepCopyValue(srcValue, dstValue)
+		dst.Set(dstValue)
+
+	case reflect.Array:
+		for i := 0; i < src.Len(); i++ {
+			deepCopyValue(src.Index(i), dst.Index(i))
+		}
+
+	default:
+		// 对于基本类型和string，直接赋值
+		if dst.CanSet() {
+			dst.Set(src)
+		}
+	}
+}
+
+// deepCopyConfig 保留原有的JSON深拷贝方法作为备用
 func deepCopyConfig(src *models.AppConfig) *models.AppConfig {
 	if src == nil {
 		return nil
@@ -197,8 +314,8 @@ func (cns *ConfigNotificationService) debounceNotify(listener *ConfigListener, o
 	}
 
 	// 创建配置副本，避免在闭包中持有原始引用
-	oldConfigCopy := deepCopyConfig(oldConfig)
-	newConfigCopy := deepCopyConfig(newConfig)
+	oldConfigCopy := deepCopyConfigReflect(oldConfig)
+	newConfigCopy := deepCopyConfigReflect(newConfig)
 
 	changeType := listener.ChangeType
 
@@ -246,18 +363,33 @@ func (cns *ConfigNotificationService) executeCallback(
 func (cns *ConfigNotificationService) Cleanup() {
 	cns.cancel() // 取消所有context
 
-	cns.listeners.Range(func(key, value interface{}) bool {
-		cns.listeners.Delete(key)
-		return true
-	})
+	cns.mu.Lock()
+	for changeType, listeners := range cns.listeners {
+		for _, listener := range listeners {
+			listener.cancel()
+		}
+		delete(cns.listeners, changeType)
+	}
+	cns.mu.Unlock()
 
 	cns.wg.Wait() // 等待所有协程完成
 }
 
+// GetListeners 获取指定类型的所有监听器
+func (cns *ConfigNotificationService) GetListeners(changeType ConfigChangeType) []*ConfigListener {
+	cns.mu.RLock()
+	defer cns.mu.RUnlock()
+
+	listeners := cns.listeners[changeType]
+	result := make([]*ConfigListener, len(listeners))
+	copy(result, listeners)
+	return result
+}
+
 // CreateHotkeyListener 创建热键配置监听器
-func CreateHotkeyListener(callback func(enable bool, hotkey *models.HotkeyCombo) error) *ConfigListener {
+func CreateHotkeyListener(name string, callback func(enable bool, hotkey *models.HotkeyCombo) error) *ConfigListener {
 	return &ConfigListener{
-		Name:       "HotkeyListener",
+		Name:       name,
 		ChangeType: ConfigChangeTypeHotkey,
 		Callback: func(changeType ConfigChangeType, oldConfig, newConfig *models.AppConfig) error {
 			if newConfig != nil {
@@ -279,9 +411,9 @@ func CreateHotkeyListener(callback func(enable bool, hotkey *models.HotkeyCombo)
 }
 
 // CreateDataPathListener 创建数据路径配置监听器
-func CreateDataPathListener(callback func(oldPath, newPath string) error) *ConfigListener {
+func CreateDataPathListener(name string, callback func() error) *ConfigListener {
 	return &ConfigListener{
-		Name:       "DataPathListener",
+		Name:       name,
 		ChangeType: ConfigChangeTypeDataPath,
 		Callback: func(changeType ConfigChangeType, oldConfig, newConfig *models.AppConfig) error {
 			var oldPath, newPath string
@@ -298,7 +430,7 @@ func CreateDataPathListener(callback func(oldPath, newPath string) error) *Confi
 			}
 
 			if oldPath != newPath {
-				return callback(oldPath, newPath)
+				return callback()
 			}
 			return nil
 		},
@@ -313,8 +445,8 @@ func CreateDataPathListener(callback func(oldPath, newPath string) error) *Confi
 	}
 }
 
-// ServiceShutdown 关闭服务
-func (cns *ConfigNotificationService) ServiceShutdown() error {
+// OnShutdown 关闭服务
+func (cns *ConfigNotificationService) OnShutdown() error {
 	cns.Cleanup()
 	return nil
 }

internal/services/config_service.go

@@ -290,22 +290,22 @@ func (cs *ConfigService) SetHotkeyChangeCallback(callback func(enable bool, hotk
 	defer cs.mu.Unlock()
 
 	// 创建热键监听器并注册
-	hotkeyListener := CreateHotkeyListener(callback)
+	hotkeyListener := CreateHotkeyListener("DefaultHotkeyListener", callback)
 	return cs.notificationService.RegisterListener(hotkeyListener)
 }
 
 // SetDataPathChangeCallback 设置数据路径配置变更回调
-func (cs *ConfigService) SetDataPathChangeCallback(callback func(oldPath, newPath string) error) error {
+func (cs *ConfigService) SetDataPathChangeCallback(callback func() error) error {
 	cs.mu.Lock()
 	defer cs.mu.Unlock()
 
 	// 创建数据路径监听器并注册
-	dataPathListener := CreateDataPathListener(callback)
+	dataPathListener := CreateDataPathListener("DefaultDataPathListener", callback)
 	return cs.notificationService.RegisterListener(dataPathListener)
 }
 
-// ServiceShutdown 关闭服务
-func (cs *ConfigService) ServiceShutdown() error {
+// OnShutdown 关闭服务
+func (cs *ConfigService) OnShutdown() error {
 	cs.stopWatching()
 	if cs.notificationService != nil {
 		cs.notificationService.Cleanup()

internal/services/document_service.go

@@ -2,270 +2,337 @@ package services
 
 import (
 	"context"
-	"os"
+	"database/sql"
+	"fmt"
 	"path/filepath"
 	"sync"
-	"sync/atomic"
 	"time"
 	"voidraft/internal/models"
 
+	"github.com/wailsapp/wails/v3/pkg/application"
 	"github.com/wailsapp/wails/v3/pkg/services/log"
+	_ "modernc.org/sqlite" // SQLite driver
 )
 
-// DocumentService 提供文档管理功能
+// SQL constants for database operations
+const (
+	dbName = "voidraft.db"
+	// Database schema (simplified single table with auto-increment ID)
+	sqlCreateDocumentsTable = `
+CREATE TABLE IF NOT EXISTS documents (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    title TEXT NOT NULL,
+    content TEXT DEFAULT '∞∞∞text-a',
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+)`
+
+	// Performance optimization indexes
+	sqlCreateIndexUpdatedAt = `CREATE INDEX IF NOT EXISTS idx_documents_updated_at ON documents(updated_at DESC)`
+	sqlCreateIndexTitle     = `CREATE INDEX IF NOT EXISTS idx_documents_title ON documents(title)`
+
+	// SQLite performance optimization settings
+	sqlOptimizationSettings = `
+PRAGMA journal_mode = WAL;
+PRAGMA synchronous = NORMAL;
+PRAGMA cache_size = -64000;
+PRAGMA temp_store = MEMORY;
+PRAGMA foreign_keys = ON;`
+
+	// Document operations
+	sqlGetDocumentByID = `
+SELECT id, title, content, created_at, updated_at 
+FROM documents 
+WHERE id = ?`
+
+	sqlInsertDocument = `
+INSERT INTO documents (title, content, created_at, updated_at)
+VALUES (?, ?, ?, ?)`
+
+	sqlUpdateDocument = `
+UPDATE documents 
+SET title = ?, content = ?, updated_at = ?
+WHERE id = ?`
+
+	sqlUpdateDocumentContent = `
+UPDATE documents 
+SET content = ?, updated_at = ?
+WHERE id = ?`
+
+	sqlUpdateDocumentTitle = `
+UPDATE documents 
+SET title = ?, updated_at = ?
+WHERE id = ?`
+
+	sqlDeleteDocument = `
+DELETE FROM documents WHERE id = ?`
+
+	sqlListAllDocumentsMeta = `
+SELECT id, title, created_at, updated_at 
+FROM documents 
+ORDER BY updated_at DESC`
+
+	sqlGetFirstDocumentID = `
+SELECT id FROM documents ORDER BY id LIMIT 1`
+)
+
+// DocumentService provides document management functionality
 type DocumentService struct {
 	configService *ConfigService
 	logger        *log.LoggerService
-	docStore      *Store[models.Document]
-
-	// 文档状态管理
-	mu       sync.RWMutex
-	document *models.Document
-
-	// 自动保存管理
+	db            *sql.DB
+	mu            sync.RWMutex
 	ctx           context.Context
-	cancel        context.CancelFunc
-	isDirty       atomic.Bool
-	lastSaveTime  atomic.Int64 // unix timestamp
-	saveScheduler chan struct{}
-
-	// 初始化控制
-	initOnce sync.Once
 }
 
-// NewDocumentService 创建文档服务
+// NewDocumentService creates a new document service
 func NewDocumentService(configService *ConfigService, logger *log.LoggerService) *DocumentService {
 	if logger == nil {
 		logger = log.New()
 	}
 
-	ctx, cancel := context.WithCancel(context.Background())
 	return &DocumentService{
 		configService: configService,
 		logger:        logger,
-		ctx:           ctx,
-		cancel:        cancel,
-		saveScheduler: make(chan struct{}, 1),
 	}
 }
 
-// Initialize 初始化服务
-func (ds *DocumentService) Initialize() error {
-	var initErr error
-	ds.initOnce.Do(func() {
-		initErr = ds.doInitialize()
-	})
-	return initErr
+// OnStartup initializes the service when the application starts
+func (ds *DocumentService) OnStartup(ctx context.Context, _ application.ServiceOptions) error {
+	ds.ctx = ctx
+	return ds.initDatabase()
 }
 
-// doInitialize 执行初始化
-func (ds *DocumentService) doInitialize() error {
-	if err := ds.initStore(); err != nil {
-		return err
-	}
-
-	ds.loadDocument()
-	go ds.autoSaveWorker()
-	return nil
-}
-
-// initStore 初始化存储
-func (ds *DocumentService) initStore() error {
-	docPath, err := ds.getDocumentPath()
+// initDatabase initializes the SQLite database
+func (ds *DocumentService) initDatabase() error {
+	dbPath, err := ds.getDatabasePath()
 	if err != nil {
-		return err
+		return fmt.Errorf("failed to get database path: %w", err)
 	}
 
-	if err := os.MkdirAll(filepath.Dir(docPath), 0755); err != nil {
-		return err
+	db, err := sql.Open("sqlite", dbPath)
+	if err != nil {
+		return fmt.Errorf("failed to open database: %w", err)
 	}
 
-	ds.docStore = NewStore[models.Document](StoreOption{
-		FilePath: docPath,
-		AutoSave: false,
-		Logger:   ds.logger,
-	})
+	ds.db = db
+
+	// Apply optimization settings
+	if _, err := db.Exec(sqlOptimizationSettings); err != nil {
+		return fmt.Errorf("failed to apply optimization settings: %w", err)
+	}
+
+	// Create table
+	if _, err := db.Exec(sqlCreateDocumentsTable); err != nil {
+		return fmt.Errorf("failed to create table: %w", err)
+	}
+
+	// Create indexes
+	if err := ds.createIndexes(); err != nil {
+		return fmt.Errorf("failed to create indexes: %w", err)
+	}
+
+	// Ensure default document exists
+	if err := ds.ensureDefaultDocument(); err != nil {
+		return fmt.Errorf("failed to ensure default document: %w", err)
+	}
 
 	return nil
 }
 
-// getDocumentPath 获取文档路径
-func (ds *DocumentService) getDocumentPath() (string, error) {
+// getDatabasePath gets the database file path
+func (ds *DocumentService) getDatabasePath() (string, error) {
 	config, err := ds.configService.GetConfig()
 	if err != nil {
 		return "", err
 	}
-	return filepath.Join(config.General.DataPath, "docs", "default.json"), nil
+	return filepath.Join(config.General.DataPath, dbName), nil
 }
 
-// loadDocument 加载文档
-func (ds *DocumentService) loadDocument() {
-	ds.mu.Lock()
-	defer ds.mu.Unlock()
-
-	doc := ds.docStore.Get()
-	if doc.Meta.ID == "" {
-		ds.document = models.NewDefaultDocument()
-		ds.docStore.Set(*ds.document)
-	} else {
-		ds.document = &doc
+// createIndexes creates database indexes
+func (ds *DocumentService) createIndexes() error {
+	indexes := []string{
+		sqlCreateIndexUpdatedAt,
+		sqlCreateIndexTitle,
 	}
 
-	ds.lastSaveTime.Store(time.Now().Unix())
-}
-
-// GetActiveDocument 获取活动文档
-func (ds *DocumentService) GetActiveDocument() (*models.Document, error) {
-	ds.mu.RLock()
-	defer ds.mu.RUnlock()
-
-	if ds.document == nil {
-		return nil, nil
-	}
-
-	docCopy := *ds.document
-	return &docCopy, nil
-}
-
-// UpdateActiveDocumentContent 更新文档内容
-func (ds *DocumentService) UpdateActiveDocumentContent(content string) error {
-	ds.mu.Lock()
-	defer ds.mu.Unlock()
-
-	if ds.document != nil && ds.document.Content != content {
-		ds.document.Content = content
-		ds.markDirty()
-	}
-
-	return nil
-}
-
-// markDirty 标记为脏数据并触发自动保存
-func (ds *DocumentService) markDirty() {
-	if ds.isDirty.CompareAndSwap(false, true) {
-		select {
-		case ds.saveScheduler <- struct{}{}:
-		default: // 已有保存任务在队列中
-		}
-	}
-}
-
-// ForceSave 强制保存
-func (ds *DocumentService) ForceSave() error {
-	return ds.saveDocument()
-}
-
-// saveDocument 保存文档
-func (ds *DocumentService) saveDocument() error {
-	ds.mu.Lock()
-	defer ds.mu.Unlock()
-
-	if ds.document == nil {
-		return nil
-	}
-
-	now := time.Now()
-	ds.document.Meta.LastUpdated = now
-
-	if err := ds.docStore.Set(*ds.document); err != nil {
-		return err
-	}
-
-	if err := ds.docStore.Save(); err != nil {
-		return err
-	}
-
-	ds.isDirty.Store(false)
-	ds.lastSaveTime.Store(now.Unix())
-	return nil
-}
-
-// autoSaveWorker 自动保存工作协程
-func (ds *DocumentService) autoSaveWorker() {
-	ticker := time.NewTicker(ds.getAutoSaveInterval())
-	defer ticker.Stop()
-
-	for {
-		select {
-		case <-ds.ctx.Done():
-			return
-		case <-ds.saveScheduler:
-			ds.performAutoSave()
-		case <-ticker.C:
-			if ds.isDirty.Load() {
-				ds.performAutoSave()
-			}
-			// 动态调整保存间隔
-			ticker.Reset(ds.getAutoSaveInterval())
-		}
-	}
-}
-
-// getAutoSaveInterval 获取自动保存间隔
-func (ds *DocumentService) getAutoSaveInterval() time.Duration {
-	config, err := ds.configService.GetConfig()
-	if err != nil {
-		return 5 * time.Second
-	}
-	return time.Duration(config.Editing.AutoSaveDelay) * time.Millisecond
-}
-
-// performAutoSave 执行自动保存
-func (ds *DocumentService) performAutoSave() {
-	if !ds.isDirty.Load() {
-		return
-	}
-
-	// 防抖：避免过于频繁的保存
-	lastSave := time.Unix(ds.lastSaveTime.Load(), 0)
-	if time.Since(lastSave) < time.Second {
-		// 延迟重试
-		time.AfterFunc(time.Second, func() {
-			select {
-			case ds.saveScheduler <- struct{}{}:
-			default:
-			}
-		})
-		return
-	}
-
-	if err := ds.saveDocument(); err != nil {
-		ds.logger.Error("auto save failed", "error", err)
-	}
-}
-
-// ReloadDocument 重新加载文档
-func (ds *DocumentService) ReloadDocument() error {
-	// 先保存当前文档
-	if ds.isDirty.Load() {
-		if err := ds.saveDocument(); err != nil {
+	for _, index := range indexes {
+		if _, err := ds.db.Exec(index); err != nil {
 			return err
 		}
 	}
+	return nil
+}
 
-	// 重新初始化存储
-	if err := ds.initStore(); err != nil {
+// ensureDefaultDocument ensures a default document exists
+func (ds *DocumentService) ensureDefaultDocument() error {
+	// Check if any document exists
+	var count int
+	err := ds.db.QueryRow("SELECT COUNT(*) FROM documents").Scan(&count)
+	if err != nil {
 		return err
 	}
 
-	// 重新加载
-	ds.loadDocument()
+	// If no documents exist, create default document
+	if count == 0 {
+		defaultDoc := models.NewDefaultDocument()
+		_, err := ds.CreateDocument(defaultDoc.Title)
+		return err
+	}
 	return nil
 }
 
-// ServiceShutdown 关闭服务
-func (ds *DocumentService) ServiceShutdown() error {
-	ds.cancel() // 停止自动保存工作协程
+// GetDocumentByID gets a document by ID
+func (ds *DocumentService) GetDocumentByID(id int64) (*models.Document, error) {
+	ds.mu.RLock()
+	defer ds.mu.RUnlock()
 
-	// 最后保存
-	if ds.isDirty.Load() {
-		return ds.saveDocument()
+	var doc models.Document
+	row := ds.db.QueryRow(sqlGetDocumentByID, id)
+	err := row.Scan(&doc.ID, &doc.Title, &doc.Content, &doc.CreatedAt, &doc.UpdatedAt)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, fmt.Errorf("failed to get document by ID: %w", err)
 	}
 
+	return &doc, nil
+}
+
+// CreateDocument creates a new document and returns the created document with ID
+func (ds *DocumentService) CreateDocument(title string) (*models.Document, error) {
+	ds.mu.Lock()
+	defer ds.mu.Unlock()
+
+	// Create document with default content
+	now := time.Now()
+	doc := &models.Document{
+		Title:     title,
+		Content:   "∞∞∞text-a\n",
+		CreatedAt: now,
+		UpdatedAt: now,
+	}
+
+	result, err := ds.db.Exec(sqlInsertDocument, doc.Title, doc.Content, doc.CreatedAt, doc.UpdatedAt)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create document: %w", err)
+	}
+
+	// Get the auto-generated ID
+	id, err := result.LastInsertId()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get last insert ID: %w", err)
+	}
+
+	// Return the created document with ID
+	doc.ID = id
+	return doc, nil
+}
+
+// UpdateDocumentContent updates the content of a document
+func (ds *DocumentService) UpdateDocumentContent(id int64, content string) error {
+	ds.mu.Lock()
+	defer ds.mu.Unlock()
+
+	_, err := ds.db.Exec(sqlUpdateDocumentContent, content, time.Now(), id)
+	if err != nil {
+		return fmt.Errorf("failed to update document content: %w", err)
+	}
 	return nil
 }
 
-// OnDataPathChanged 处理数据路径变更
-func (ds *DocumentService) OnDataPathChanged(oldPath, newPath string) error {
-	return ds.ReloadDocument()
+// UpdateDocumentTitle updates the title of a document
+func (ds *DocumentService) UpdateDocumentTitle(id int64, title string) error {
+	ds.mu.Lock()
+	defer ds.mu.Unlock()
+
+	_, err := ds.db.Exec(sqlUpdateDocumentTitle, title, time.Now(), id)
+	if err != nil {
+		return fmt.Errorf("failed to update document title: %w", err)
+	}
+	return nil
+}
+
+// DeleteDocument deletes a document (not allowed if it's the only document)
+func (ds *DocumentService) DeleteDocument(id int64) error {
+	ds.mu.Lock()
+	defer ds.mu.Unlock()
+
+	// Check if this is the only document
+	var count int
+	err := ds.db.QueryRow("SELECT COUNT(*) FROM documents").Scan(&count)
+	if err != nil {
+		return fmt.Errorf("failed to count documents: %w", err)
+	}
+
+	// Don't allow deletion if this is the only document
+	if count <= 1 {
+		return fmt.Errorf("cannot delete the last document")
+	}
+
+	_, err = ds.db.Exec(sqlDeleteDocument, id)
+	if err != nil {
+		return fmt.Errorf("failed to delete document: %w", err)
+	}
+	return nil
+}
+
+// ListAllDocumentsMeta lists all document metadata
+func (ds *DocumentService) ListAllDocumentsMeta() ([]*models.Document, error) {
+	ds.mu.RLock()
+	defer ds.mu.RUnlock()
+
+	rows, err := ds.db.Query(sqlListAllDocumentsMeta)
+	if err != nil {
+		return nil, fmt.Errorf("failed to list document meta: %w", err)
+	}
+	defer rows.Close()
+
+	var documents []*models.Document
+	for rows.Next() {
+		var doc models.Document
+		err := rows.Scan(&doc.ID, &doc.Title, &doc.CreatedAt, &doc.UpdatedAt)
+		if err != nil {
+			return nil, fmt.Errorf("failed to scan document meta: %w", err)
+		}
+		documents = append(documents, &doc)
+	}
+
+	return documents, nil
+}
+
+// GetFirstDocumentID gets the first document's ID for frontend initialization
+func (ds *DocumentService) GetFirstDocumentID() (int64, error) {
+	ds.mu.RLock()
+	defer ds.mu.RUnlock()
+
+	var id int64
+	err := ds.db.QueryRow(sqlGetFirstDocumentID).Scan(&id)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return 0, nil // No documents exist
+		}
+		return 0, fmt.Errorf("failed to get first document ID: %w", err)
+	}
+	return id, nil
+}
+
+// OnShutdown shuts down the service when the application closes
+func (ds *DocumentService) OnShutdown() error {
+	if ds.db != nil {
+		return ds.db.Close()
+	}
+	return nil
+}
+
+// OnDataPathChanged handles data path changes
+func (ds *DocumentService) OnDataPathChanged() error {
+	// Close existing database
+	if ds.db != nil {
+		ds.db.Close()
+	}
+
+	// Reinitialize with new path
+	return ds.initDatabase()
 }

internal/services/extension_service.go

@@ -257,8 +257,8 @@ func (es *ExtensionService) ResetAllExtensionsToDefault() error {
 	return nil
 }
 
-// ServiceShutdown 关闭服务
-func (es *ExtensionService) ServiceShutdown() error {
+// OnShutdown 关闭服务
+func (es *ExtensionService) OnShutdown() error {
 	es.cancel()
 	return nil
 }

internal/services/hotkey_service.go

@@ -259,7 +259,7 @@ func (hs *HotkeyService) IsRegistered() bool {
 	return hs.isRegistered.Load()
 }
 
-// ServiceShutdown 关闭服务
+// OnShutdown 关闭服务
 func (hs *HotkeyService) ServiceShutdown() error {
 	hs.cancel()
 	hs.wg.Wait()

internal/services/hotkey_service_darwin.go

@@ -283,8 +283,8 @@ func (hs *HotkeyService) IsRegistered() bool {
 	return hs.isRegistered.Load()
 }
 
-// ServiceShutdown 关闭热键服务
-func (hs *HotkeyService) ServiceShutdown() error {
+// OnShutdown 关闭热键服务
+func (hs *HotkeyService) OnShutdown() error {
 	return hs.UnregisterHotkey()
 }
 

internal/services/hotkey_service_linux.go

@@ -384,8 +384,8 @@ func (hs *HotkeyService) IsRegistered() bool {
 	return hs.isRegistered.Load()
 }
 
-// ServiceShutdown 关闭服务
-func (hs *HotkeyService) ServiceShutdown() error {
+// OnShutdown 关闭服务
+func (hs *HotkeyService) OnShutdown() error {
 	hs.cancel()
 	hs.wg.Wait()
 	C.closeX11Display()

internal/services/keybinding_service.go

@@ -185,8 +185,8 @@ func (kbs *KeyBindingService) GetAllKeyBindings() ([]models.KeyBinding, error) {
 	return config.KeyBindings, nil
 }
 
-// ServiceShutdown 关闭服务
-func (kbs *KeyBindingService) ServiceShutdown() error {
+// OnShutdown 关闭服务
+func (kbs *KeyBindingService) OnShutdown() error {
 	kbs.cancel()
 	return nil
 }

internal/services/path_migration_service.go

@@ -417,8 +417,8 @@ func (ms *MigrationService) CancelMigration() error {
 	return fmt.Errorf("no active migration to cancel")
 }
 
-// ServiceShutdown 服务关闭
-func (ms *MigrationService) ServiceShutdown() error {
+// OnShutdown 服务关闭
+func (ms *MigrationService) OnShutdown() error {
 	ms.CancelMigration()
 	return nil
 }

internal/services/service_manager.go

@@ -74,19 +74,13 @@ func NewServiceManager() *ServiceManager {
 	}
 
 	// 设置数据路径变更监听，处理配置重置和路径变更
-	err = configService.SetDataPathChangeCallback(func(oldPath, newPath string) error {
-		return documentService.OnDataPathChanged(oldPath, newPath)
+	err = configService.SetDataPathChangeCallback(func() error {
+		return documentService.OnDataPathChanged()
 	})
 	if err != nil {
 		panic(err)
 	}
 
-	// 初始化文档服务
-	err = documentService.Initialize()
-	if err != nil {
-		panic(err)
-	}
-
 	return &ServiceManager{
 		configService:     configService,
 		documentService:   documentService,