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

include/ui/quest_log_screen.hpp

@@ -13,11 +13,19 @@ public:
     bool isOpen() const { return open; }
     void toggle() { open = !open; }
     void setOpen(bool o) { open = o; }
+    // Open the log and scroll to the given quest (by questId)
+    void openAndSelectQuest(uint32_t questId) {
+        open = true;
+        pendingSelectQuestId_ = questId;
+        scrollToSelected_ = true;
+    }
 
 private:
     bool open = false;
     bool lKeyWasDown = false;
     int selectedIndex = -1;
+    uint32_t pendingSelectQuestId_ = 0;  // non-zero: select this quest on next render
+    bool scrollToSelected_ = false;       // true: call SetScrollHereY once after selection
     uint32_t lastDetailRequestQuestId_ = 0;
     double lastDetailRequestAt_ = 0.0;
     std::unordered_set<uint32_t> questDetailQueryNoResponse_;