Improve utility code clarity and add CcpTruncateFile

[MiloPernemarkDEV]

Added CcpTruncateFile as an explicit API for clearing file contents. This avoids requiring users to know that CcpCreateFile internally uses _O_TRUNC, making the truncation behavior clearer at the call site.

The current implementation reuses CcpCreateFile to preserve the existing behavior and avoid duplicating file creation logic. If the preferred approach is to handle truncation directly inside CcpTruncateFile, I can adjust it.

Additional cleanup:

• Replaced hardcoded buffer sizes in the logging implementation with named constexpr values for improved readability and maintainability.
• Replaced a C-style pointer cast with reinterpret_cast in the time implementation to make the intent of the conversion explicit.