service/sm: improve service manager implementation

- Reorder error codes to match numerical order
- Rename RegisterClient to Initialize in service registration
  to match actual function name
- Update function declaration order in header to match implementation
- Improve QueryPointerBufferSize implementation:
  * Add proper documentation comment
  * Use constexpr for maximum transfer memory size
  * Use std::numeric_limits where appropriate
  * Improve debug logging message
  * Use meaningful constant name

These changes improve code organization and clarity while making
the service manager interface more consistent with Nintendo's
official naming conventions.

0 files changed, 0 insertions, 0 deletions