feat: Resolve low framerate during song select for IIDX32+

> caused by bad code around thumbnail fetching logic including file checks in every draw call, see #4
> added `hooks::wmisc` for linux specific minor performance fixes and similar

hooks/develhook.cpp

@@ -1,11 +1,33 @@
 #include "develhook.h"
 #include "util/logging.h"
 #include "util/detour.h"
+#include "util/libutils.h"
 #include "avs/core.h"
+#include "avs/game.h"
+#include "hooks/wmischook.h"
+#include "external/stackwalker/stackwalker.h"
 #include <vector>
 #include <string>
 #include <sstream>
 
+namespace hooks::devel::thumbnail
+{
+typedef int (*BmswSymlink_t)(const char *srcwpath, const char *dstwpath, int canonic);
+static BmswSymlink_t BmswSymlink;
+
+void run()
+{
+    HMODULE bmsw_ = nullptr;
+    if ((bmsw_ = libutils::try_library(MODULE_PATH / "bmsound-wine.dll")))
+    {
+        BmswSymlink = (BmswSymlink_t) GetProcAddress(bmsw_, "BmswSymlink");
+    }
+
+    log_warning("hooks::devel::thumbnail", "Forcing thumbnail patch..");
+    hooks::wmisc::apply_performance_hacks(avs::game::DLL_INSTANCE, "LDJ", "20250825");
+}
+
+}
 
 namespace hooks::devel::avs_fs
 {
@@ -49,7 +71,9 @@ void run()
 namespace hooks::devel
 {
 void (*routine_cb_[devel_routine_last])() ={
-        [avs_fs_detour] = avs_fs::run
+        [avs_fs_detour] = avs_fs::run,
+        [sndb_test] = nullptr,
+        [thum_test] = thumbnail::run
 };
 
 static constexpr unsigned int by_str(const char *str, int h = 0)
@@ -85,6 +109,9 @@ static devel_routine_t routines()
             case by_str("sndb_test"):
                 routines_ |= 1 << sndb_test;
                 break;
+            case by_str("thum_test"):
+                routines_ |= 1 << thum_test;
+                break;
             default:
                 break;
             }