ui: add raid frames, quest log scroll-to-quest, and quest tracking polish

Raid frames:
- When groupType=1 (raid), render compact grid-style raid frames instead
  of the vertical party list that would overflow for 25/40-man groups
- Members organized by subgroup (G1-G8), up to 5 rows per subgroup column
- Each cell shows: name, health bar (green/yellow/red), power bar (class color)
- Clicking a cell targets the member; border highlight for current target
- Frames anchored above action bar area, centered horizontally

Quest log scroll-to-quest:
- openAndSelectQuest(questId) selects the quest AND scrolls the list pane
  to show it (SetScrollHereY on the first render frame after open)
- One-shot scroll: scrollToSelected_ cleared after first use so normal
  scroll behavior is unaffected afterward

Quest tracker:
- Clicking a tracked quest now calls openAndSelectQuest() — opens the log
  AND jumps to that specific quest rather than just opening to top

src/ui/quest_log_screen.cpp

@@ -261,6 +261,18 @@ void QuestLogScreen::render(game::GameHandler& gameHandler) {
             ImGui::BeginChild("QuestListPane", ImVec2(paneW, 0), true);
             ImGui::TextColored(ImVec4(0.85f, 0.82f, 0.74f, 1.0f), "Quest List");
             ImGui::Separator();
+
+            // Resolve pending select from tracker click
+            if (pendingSelectQuestId_ != 0) {
+                for (size_t i = 0; i < quests.size(); i++) {
+                    if (quests[i].questId == pendingSelectQuestId_) {
+                        selectedIndex = static_cast<int>(i);
+                        break;
+                    }
+                }
+                pendingSelectQuestId_ = 0;
+            }
+
             for (size_t i = 0; i < quests.size(); i++) {
                 const auto& q = quests[i];
                 ImGui::PushID(static_cast<int>(i));
@@ -274,6 +286,11 @@ void QuestLogScreen::render(game::GameHandler& gameHandler) {
                 if (rowW < 1.0f) rowW = 1.0f;
                 bool clicked = ImGui::InvisibleButton("questRowBtn", ImVec2(rowW, rowH));
                 bool hovered = ImGui::IsItemHovered();
+                // Scroll to selected quest on the first frame after openAndSelectQuest()
+                if (selected && scrollToSelected_) {
+                    ImGui::SetScrollHereY(0.5f);
+                    scrollToSelected_ = false;
+                }
 
                 ImVec2 rowMin = ImGui::GetItemRectMin();
                 ImVec2 rowMax = ImGui::GetItemRectMax();