[common] unify std::random_device (#3801)

Signed-off-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3801
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

src/common/random.cpp

@@ -0,0 +1,19 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include <random>
+#include "common/random.h"
+
+static std::random_device g_random_device;
+
+namespace Common::Random {
+    [[nodiscard]] u32 Random32(u32 seed) noexcept {
+        return g_random_device();
+    }
+    [[nodiscard]] u64 Random64(u64 seed) noexcept {
+        return g_random_device();
+    }
+    [[nodiscard]] std::mt19937 GetMT19937() noexcept {
+        return std::mt19937(g_random_device());
+    }
+}