feat: debuff dispel-type border coloring in buff bar

Read DispelType from Spell.dbc (new field in all expansion DBC layouts)
and use it to color debuff icon borders: magic=blue, curse=purple,
disease=brown, poison=green, other=red. Buffs remain green-bordered.
Adds getSpellDispelType() to GameHandler for lazy cache lookup.

Data/expansions/classic/dbc_layouts.json

@@ -2,7 +2,8 @@
   "Spell": {
     "ID": 0, "Attributes": 5, "IconID": 117,
     "Name": 120, "Tooltip": 147, "Rank": 129, "SchoolEnum": 1,
-    "CastingTimeIndex": 15, "PowerType": 28, "ManaCost": 29, "RangeIndex": 33
+    "CastingTimeIndex": 15, "PowerType": 28, "ManaCost": 29, "RangeIndex": 33,
+    "DispelType": 4
   },
   "SpellRange": { "MaxRange": 2 },
   "ItemDisplayInfo": {

Data/expansions/tbc/dbc_layouts.json

@@ -2,7 +2,8 @@
   "Spell": {
     "ID": 0, "Attributes": 5, "IconID": 124,
     "Name": 127, "Tooltip": 154, "Rank": 136, "SchoolMask": 215,
-    "CastingTimeIndex": 22, "PowerType": 35, "ManaCost": 36, "RangeIndex": 40
+    "CastingTimeIndex": 22, "PowerType": 35, "ManaCost": 36, "RangeIndex": 40,
+    "DispelType": 3
   },
   "SpellRange": { "MaxRange": 4 },
   "ItemDisplayInfo": {

Data/expansions/turtle/dbc_layouts.json

@@ -2,7 +2,8 @@
   "Spell": {
     "ID": 0, "Attributes": 5, "IconID": 117,
     "Name": 120, "Tooltip": 147, "Rank": 129, "SchoolEnum": 1,
-    "CastingTimeIndex": 15, "PowerType": 28, "ManaCost": 29, "RangeIndex": 33
+    "CastingTimeIndex": 15, "PowerType": 28, "ManaCost": 29, "RangeIndex": 33,
+    "DispelType": 4
   },
   "SpellRange": { "MaxRange": 2 },
   "ItemDisplayInfo": {

Data/expansions/wotlk/dbc_layouts.json

@@ -2,7 +2,8 @@
   "Spell": {
     "ID": 0, "Attributes": 4, "IconID": 133,
     "Name": 136, "Tooltip": 139, "Rank": 153, "SchoolMask": 225,
-    "PowerType": 14, "ManaCost": 39, "CastingTimeIndex": 47, "RangeIndex": 49
+    "PowerType": 14, "ManaCost": 39, "CastingTimeIndex": 47, "RangeIndex": 49,
+    "DispelType": 2
   },
   "SpellRange": { "MaxRange": 4 },
   "ItemDisplayInfo": {

include/game/game_handler.hpp

@@ -1586,6 +1586,8 @@ public:
     const std::string& getSpellName(uint32_t spellId) const;
     const std::string& getSpellRank(uint32_t spellId) const;
     const std::string& getSkillLineName(uint32_t spellId) const;
+    /// Returns the DispelType for a spell (0=none,1=magic,2=curse,3=disease,4=poison,5+=other)
+    uint8_t getSpellDispelType(uint32_t spellId) const;
 
     struct TrainerTab {
         std::string name;
@@ -2486,7 +2488,7 @@ private:
     // Trainer
     bool trainerWindowOpen_ = false;
     TrainerListData currentTrainerList_;
-    struct SpellNameEntry { std::string name; std::string rank; uint32_t schoolMask = 0; };
+    struct SpellNameEntry { std::string name; std::string rank; uint32_t schoolMask = 0; uint8_t dispelType = 0; };
     std::unordered_map<uint32_t, SpellNameEntry> spellNameCache_;
     bool spellNameCacheLoaded_ = false;
 

src/game/game_handler.cpp

@@ -16983,6 +16983,14 @@ void GameHandler::loadSpellNameCache() {
         if (f != 0xFFFFFFFF && f < dbc->getFieldCount()) { schoolEnumField = f; hasSchoolEnum = true; }
     }
 
+    // DispelType field (0=none,1=magic,2=curse,3=disease,4=poison,5=stealth,…)
+    uint32_t dispelField = 0xFFFFFFFF;
+    bool hasDispelField = false;
+    if (spellL) {
+        uint32_t f = spellL->field("DispelType");
+        if (f != 0xFFFFFFFF && f < dbc->getFieldCount()) { dispelField = f; hasDispelField = true; }
+    }
+
     uint32_t count = dbc->getRecordCount();
     for (uint32_t i = 0; i < count; ++i) {
         uint32_t id = dbc->getUInt32(i, spellL ? (*spellL)["ID"] : 0);
@@ -16990,7 +16998,7 @@ void GameHandler::loadSpellNameCache() {
         std::string name = dbc->getString(i, spellL ? (*spellL)["Name"] : 136);
         std::string rank = dbc->getString(i, spellL ? (*spellL)["Rank"] : 153);
         if (!name.empty()) {
-            SpellNameEntry entry{std::move(name), std::move(rank), 0};
+            SpellNameEntry entry{std::move(name), std::move(rank), 0, 0};
             if (hasSchoolMask) {
                 entry.schoolMask = dbc->getUInt32(i, schoolMaskField);
             } else if (hasSchoolEnum) {
@@ -16999,6 +17007,9 @@ void GameHandler::loadSpellNameCache() {
                 uint32_t e = dbc->getUInt32(i, schoolEnumField);
                 entry.schoolMask = (e < 7) ? enumToBitmask[e] : 0;
             }
+            if (hasDispelField) {
+                entry.dispelType = static_cast<uint8_t>(dbc->getUInt32(i, dispelField));
+            }
             spellNameCache_[id] = std::move(entry);
         }
     }
@@ -17192,6 +17203,12 @@ const std::string& GameHandler::getSpellRank(uint32_t spellId) const {
     return (it != spellNameCache_.end()) ? it->second.rank : EMPTY_STRING;
 }
 
+uint8_t GameHandler::getSpellDispelType(uint32_t spellId) const {
+    const_cast<GameHandler*>(this)->loadSpellNameCache();
+    auto it = spellNameCache_.find(spellId);
+    return (it != spellNameCache_.end()) ? it->second.dispelType : 0;
+}
+
 const std::string& GameHandler::getSkillLineName(uint32_t spellId) const {
     auto slIt = spellToSkillLine_.find(spellId);
     if (slIt == spellToSkillLine_.end()) return EMPTY_STRING;

src/ui/game_screen.cpp

@@ -9503,7 +9503,22 @@ void GameScreen::renderBuffBar(game::GameHandler& gameHandler) {
 
             ImGui::PushID(static_cast<int>(i) + (pass * 256));
 
-            ImVec4 borderColor = isBuff ? ImVec4(0.2f, 0.8f, 0.2f, 0.9f) : ImVec4(0.8f, 0.2f, 0.2f, 0.9f);
+            // Determine border color: buffs = green; debuffs use WoW dispel-type colors
+            ImVec4 borderColor;
+            if (isBuff) {
+                borderColor = ImVec4(0.2f, 0.8f, 0.2f, 0.9f);  // green
+            } else {
+                // Debuff: color by dispel type (0=none/red, 1=magic/blue, 2=curse/purple,
+                //         3=disease/brown, 4=poison/green, other=dark-red)
+                uint8_t dt = gameHandler.getSpellDispelType(aura.spellId);
+                switch (dt) {
+                    case 1:  borderColor = ImVec4(0.15f, 0.50f, 1.00f, 0.9f); break;  // magic: blue
+                    case 2:  borderColor = ImVec4(0.70f, 0.20f, 0.90f, 0.9f); break;  // curse: purple
+                    case 3:  borderColor = ImVec4(0.55f, 0.30f, 0.10f, 0.9f); break;  // disease: brown
+                    case 4:  borderColor = ImVec4(0.10f, 0.70f, 0.10f, 0.9f); break;  // poison: green
+                    default: borderColor = ImVec4(0.80f, 0.20f, 0.20f, 0.9f); break;  // other: red
+                }
+            }
 
             // Try to get spell icon
             VkDescriptorSet iconTex = VK_NULL_HANDLE;