Loot filter on the options window's Beute page

Per category (Gold, Tränke, white/blue/yellow/brown/green items) one of
Löschen (loot deleted at once), Ignorieren (pickup key leaves it), Standard,
Immer anzeigen (label without the labels key). Replaces the game's
PICKUPAUTO choice; settings in [loot] of sacredK.ini. docs/loot-filter.md.
Also ignore MSYS *.stackdump files.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/mods/input.cpp

@@ -343,7 +343,14 @@ constexpr uint32_t kGetAsyncKeyStateImport = 0x0088e2b0;
 constexpr uint32_t kLabelsKeyCalls[] = {0x00599ebf, 0x0060f227, 0x00612015, 0x006176ec,
                                         0x00626ffe, 0x00627299, 0x006c80b0};
 
+// Set by mods/lootfilter.cpp around DrawObjectLabels to draw the labels of
+// items shown without the key (game thread, like the polls).
+bool g_labelsForced = false;
+
 SHORT WINAPI LabelsKeyState(int) {
+    if (g_labelsForced) {
+        return static_cast<SHORT>(0x8000);
+    }
     for (const Binding& binding : g_bindings) {
         if (binding.kind == Kind::Labels) {
             return binding.vk ? GetAsyncKeyState(binding.vk) : 0;
@@ -487,6 +494,14 @@ bool TypingIntoTextField() {
     return FocusedTextField() != nullptr;
 }
 
+bool LabelsKeyHeld() {
+    return (LabelsKeyState(VK_MENU) & 0x8000) != 0;
+}
+
+void ForceLabels(bool forced) {
+    g_labelsForced = forced;
+}
+
 int MovementKey(Move direction) {
     for (const Binding& binding : g_bindings) {
         if (binding.kind == Kind::Move && binding.index == static_cast<int>(direction)) {