chore: update dependabot

.github/dependabot.yml

@@ -3,11 +3,30 @@ updates:
   - package-ecosystem: 'npm'
     directory: '/'
     schedule:
-      interval: 'monthly'
-    open-pull-requests-limit: 10
+      interval: 'weekly'
+    groups:
+      # 生产依赖 - 小版本更新
+      production-dependencies:
+        dependency-type: 'production'
+        update-types:
+          - 'minor'
+          - 'patch'
+
+      # 开发依赖 - 小版本更新
+      development-dependencies:
+        dependency-type: 'development'
+        update-types:
+          - 'minor'
+          - 'patch'
+
+      # Major 更新单独处理（不分组，需要人工审查）
+      # 安全更新也不分组，Dependabot 会自动优先创建独立 PR
 
   - package-ecosystem: 'github-actions'
     directory: '/'
     schedule:
-      interval: 'monthly'
-    open-pull-requests-limit: 5
+      interval: 'weekly'
+    groups:
+      github-actions:
+        patterns:
+          - '*'