Add docker secrets

.editorconfig

@@ -34,3 +34,13 @@ indent_size = 4
 # Markdown - no trimming
 [*.md]
 trim_trailing_whitespace = false
+
+# Docker secrets - no final newline (secrets often have no file extension)
+[secrets/*]
+insert_final_newline = false
+
+# Additional secret files patterns
+[*_secret]
+insert_final_newline = false
+[*.secret]
+insert_final_newline = false