Implement minimap ping: parse MSG_MINIMAP_PING and render animated ping circles

Parse party member minimap pings (packed GUID + posX + posY), store with
5s lifetime, and render as expanding concentric circles on the minimap.

include/game/game_handler.hpp

@@ -466,6 +466,24 @@ public:
     bool canUseWeaponSubclass(uint32_t subClass) const { return (weaponProficiency_ >> subClass) & 1u; }
     bool canUseArmorSubclass(uint32_t subClass)  const { return (armorProficiency_  >> subClass) & 1u; }
 
+    // Minimap pings from party members
+    struct MinimapPing {
+        uint64_t senderGuid = 0;
+        float    wowX       = 0.0f;  // canonical WoW X (north)
+        float    wowY       = 0.0f;  // canonical WoW Y (west)
+        float    age        = 0.0f;  // seconds since received
+        static constexpr float LIFETIME = 5.0f;
+        bool isExpired() const { return age >= LIFETIME; }
+    };
+    const std::vector<MinimapPing>& getMinimapPings() const { return minimapPings_; }
+    void tickMinimapPings(float dt) {
+        for (auto& p : minimapPings_) p.age += dt;
+        minimapPings_.erase(
+            std::remove_if(minimapPings_.begin(), minimapPings_.end(),
+                           [](const MinimapPing& p){ return p.isExpired(); }),
+            minimapPings_.end());
+    }
+
     bool isCasting() const { return casting; }
     bool isGameObjectInteractionCasting() const {
         return casting && currentCastSpellId == 0 && pendingGameObjectInteractGuid_ != 0;
@@ -1698,6 +1716,7 @@ private:
     std::unordered_map<uint32_t, float> spellCooldowns;    // spellId -> remaining seconds
     uint32_t weaponProficiency_ = 0;  // bitmask from SMSG_SET_PROFICIENCY itemClass=2
     uint32_t armorProficiency_  = 0;  // bitmask from SMSG_SET_PROFICIENCY itemClass=4
+    std::vector<MinimapPing> minimapPings_;
     uint8_t castCount = 0;
     bool casting = false;
     uint32_t currentCastSpellId = 0;

src/game/game_handler.cpp

@@ -779,6 +779,7 @@ void GameHandler::update(float deltaTime) {
 
         // Update combat text (Phase 2)
         updateCombatText(deltaTime);
+        tickMinimapPings(deltaTime);
 
         // Update taxi landing cooldown
         if (taxiLandingCooldown_ > 0.0f) {
@@ -2588,10 +2589,21 @@ void GameHandler::handlePacket(network::Packet& packet) {
         case Opcode::SMSG_FISH_ESCAPED:
             addSystemChatMessage("Your fish escaped!");
             break;
-        case Opcode::MSG_MINIMAP_PING:
-            // Minimap ping from a party member — consume; no visual support yet.
-            packet.setReadPos(packet.getSize());
+        case Opcode::MSG_MINIMAP_PING: {
+            // SMSG: packed_guid + float posX (canonical WoW Y=west) + float posY (canonical WoW X=north)
+            if (packet.getSize() - packet.getReadPos() < 1) break;
+            uint64_t senderGuid = UpdateObjectParser::readPackedGuid(packet);
+            if (packet.getSize() - packet.getReadPos() < 8) break;
+            float pingX = packet.readFloat(); // server sends map-coord X (east-west)
+            float pingY = packet.readFloat(); // server sends map-coord Y (north-south)
+            MinimapPing ping;
+            ping.senderGuid = senderGuid;
+            ping.wowX       = pingY;  // canonical WoW X = north = server's posY
+            ping.wowY       = pingX;  // canonical WoW Y = west  = server's posX
+            ping.age        = 0.0f;
+            minimapPings_.push_back(ping);
             break;
+        }
         case Opcode::SMSG_ZONE_UNDER_ATTACK: {
             // uint32 areaId
             if (packet.getSize() - packet.getReadPos() >= 4) {

src/ui/game_screen.cpp

@@ -8040,6 +8040,25 @@ void GameScreen::renderMinimapMarkers(game::GameHandler& gameHandler) {
         }
     }
 
+    // Minimap pings from party members
+    for (const auto& ping : gameHandler.getMinimapPings()) {
+        glm::vec3 pingRender = core::coords::canonicalToRender(glm::vec3(ping.wowX, ping.wowY, 0.0f));
+        float sx = 0.0f, sy = 0.0f;
+        if (!projectToMinimap(pingRender, sx, sy)) continue;
+
+        float t = ping.age / game::GameHandler::MinimapPing::LIFETIME;
+        float alpha = 1.0f - t;
+        float pulse = 1.0f + 1.5f * t;  // expands outward as it fades
+
+        ImU32 col  = IM_COL32(255, 220, 0, static_cast<int>(alpha * 200));
+        ImU32 col2 = IM_COL32(255, 150, 0, static_cast<int>(alpha * 100));
+        float r1 = 4.0f * pulse;
+        float r2 = 8.0f * pulse;
+        drawList->AddCircle(ImVec2(sx, sy), r1, col, 16, 2.0f);
+        drawList->AddCircle(ImVec2(sx, sy), r2, col2, 16, 1.0f);
+        drawList->AddCircleFilled(ImVec2(sx, sy), 2.5f, col);
+    }
+
     auto applyMuteState = [&]() {
         auto* activeRenderer = core::Application::getInstance().getRenderer();
         float masterScale = soundMuted_ ? 0.0f : static_cast<float>(pendingMasterVolume) / 100.0f;