diff --git a/.gitignore b/.gitignore
index be37d58..2fb8da7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,22 +1,44 @@
-# Dependencies
+# ==============================================
+# Dependencies (依赖目录)
+# ==============================================
 node_modules/
-/backed/temp
+**/node_modules/
 
-# Build outputs
+# ==============================================
+# Build outputs (构建输出)
+# ==============================================
 dist/
 build/
+.vite/
+.next/
+.nuxt/
 
-# Environment files
+# ==============================================
+# Environment files (环境配置文件)
+# ==============================================
 .env
 .env.local
-.env.development.local
-.env.test.local
-.env.production.local
-.gitignore
-.vercelignore
+.env.*.local
+!.env.example
 
-# Logs
-logs
+# ==============================================
+# IDE & Editor (编辑器配置)
+# ==============================================
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.DS_Store
+Thumbs.db
+.project
+.classpath
+.settings/
+
+# ==============================================
+# Logs (日志文件)
+# ==============================================
+logs/
 *.log
 npm-debug.log*
 yarn-debug.log*
@@ -24,34 +46,68 @@ yarn-error.log*
 pnpm-debug.log*
 lerna-debug.log*
 
-# Editor directories and files
-.vscode/
-.idea/
-.trae/
-.vercel/
-*.swp
-*.swo
-*~
-.DS_Store
-
-# Database files
+# ==============================================
+# Database files (数据库文件)
+# ==============================================
 *.db
 *.sqlite
+*.sqlite3
 
-# Backup files (generated by maintenance scripts)
+# ==============================================
+# Backup files (备份文件)
+# ==============================================
 backend/backups/
 *.backup.json
+*.bak
 
-# Uploads directory (user-uploaded files)
+# ==============================================
+# Uploads directory (用户上传文件)
+# ==============================================
 backend/uploads/*
 !backend/uploads/.gitkeep
 
-# Temporary files
+# ==============================================
+# Temporary files (临时文件)
+# ==============================================
 backend/temp/*
 !backend/temp/.gitkeep
 *.tmp
 *.temp
+*.cache
 
-#数据文件
+# ==============================================
+# Data files (数据文件)
+# ==============================================
 *.xlsx
+*.xls
 *.csv
+
+# ==============================================
+# Test coverage (测试覆盖率)
+# ==============================================
+coverage/
+.nyc_output/
+
+# ==============================================
+# Process & Runtime (进程和运行时文件)
+# ==============================================
+.pid
+*.pid
+frontend/.frontend-pid
+frontend/.frontend-port
+
+# ==============================================
+# User config files (用户配置文件)
+# ==============================================
+backend/backgroundSettings.json
+backend/fileIndex.json
+backend/config/auto-backup-settings.json
+backend/config/remote-backup-configs.json
+
+# ==============================================
+# Misc (其他)
+# ==============================================
+.trae/
+.vercel/
+.gitignore
+.vercelignore
diff --git a/backend/backgroundSettings.json.example b/backend/backgroundSettings.json.example
new file mode 100644
index 0000000..dc30926
--- /dev/null
+++ b/backend/backgroundSettings.json.example
@@ -0,0 +1,6 @@
+{
+  "opacity": 0.8,
+  "blur": 5,
+  "value": "/images/bg.jpg",
+  "type": "image"
+}
diff --git a/backend/config/auto-backup-settings.json.example b/backend/config/auto-backup-settings.json.example
new file mode 100644
index 0000000..e06b5d9
--- /dev/null
+++ b/backend/config/auto-backup-settings.json.example
@@ -0,0 +1,10 @@
+{
+  "enabled": true,
+  "cronExpression": "0 19 * * *",
+  "description": "自动备份",
+  "backupType": "full",
+  "includeFiles": true,
+  "compress": true,
+  "maxCount": 30,
+  "maxAgeDays": 90
+}
diff --git a/backend/config/remote-backup-configs.json.example b/backend/config/remote-backup-configs.json.example
new file mode 100644
index 0000000..f858f3d
--- /dev/null
+++ b/backend/config/remote-backup-configs.json.example
@@ -0,0 +1,11 @@
+{
+  "targets": [],
+  "globalSettings": {
+    "enabled": false,
+    "uploadAfterBackup": false,
+    "deleteLocalAfterUpload": false,
+    "retryCount": 3,
+    "retryDelay": 5000,
+    "timeout": 300000
+  }
+}