从 shccd159 合并 backend-adminend 子项目到 main

Made-with: Cursor

backend-adminend/.editorconfig

@@ -0,0 +1,14 @@
+# https://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+insert_final_newline = false
+trim_trailing_whitespace = false