change RNG except shuffle in duel to std::mt19937

[salix5]

move non-essential part to this PR

@mercury233
@purerosefallen
@Wind2009-Louse
@fallenstardust

[Copilot]

Pull Request Overview

This PR replaces the project’s custom RNG implementation with C++’s std::mt19937 and standard distribution APIs.

• Switches includes and types from custom mt19937 to std::mt19937 and adds uniform distributions.
• Seeds engines using std::random_device or std::seed_seq instead of time-based resets.
• Updates random integer, real value, and shuffle calls to use std::uniform_* and std::shuffle.

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
gframe/sound_manager.h	Replaced custom RNG include and declared std::mt19937
gframe/sound_manager.cpp	Seeded rng with std::random_device; replaced get_random_integer
gframe/replay_mode.cpp	Swapped custom RNG include for <random>
gframe/duelclient.h	Changed RNG type to std::mt19937 and added uniform_real_distribution
gframe/duelclient.cpp	Seeded rng with std::random_device; replaced RNG calls with std distributions
gframe/deck_con.h	Updated RNG type and declared DeckBuilder constructor
gframe/deck_con.cpp	Implemented DeckBuilder seeding; replaced custom shuffle_vector
gframe/client_field.h	Replaced custom RNG with std::mt19937
gframe/client_field.cpp	Seeded rng with std::random_device; replaced shuffle_vector

Comments suppressed due to low confidence (2)

gframe/duelclient.h:30

• [nitpick] Add a comment to real_dist to clarify that it generates values in [0,1) and that its parameters are fixed, improving readability for future maintainers.

static std::uniform_real_distribution<float> real_dist;

gframe/replay_mode.cpp:5

• It looks like is now included but not used in this file; consider removing the unused include to reduce unnecessary dependencies.

#include <random>