🔧 add from_string overloads with permissions support

- Added two new from_string overloads to allow writing file contents while setting explicit boost::filesystem::perms
- Ensures callers can both write file content and control file permissions in one operation.
- Maintains consistency with existing from_string API by providing both error-code and exception-throwing variants.

Author: Lambourl

pre/file/string.hpp

@@ -91,4 +91,16 @@ namespace pre::file {
     }
   }
 
+  inline void from_string(const std::string &path, const std::string &content, std::error_condition &ec,const boost::filesystem::perms& perms) {
+    from_string(path, content, ec);
+    boost::filesystem::permissions(path, perms);
+  }
+
+  inline void from_string(const std::string &path, const std::string &content, const boost::filesystem::perms& perms) {
+    from_string(path, content);
+    boost::filesystem::permissions(path, perms);
+  }
+
+
+
 }