bump CAPI min to 1.12.4

Replace the hardcoded knownTrackingSpells class table and the
icon-substring spellbook scan with ClassicAPI's native tracking
functions:

- RefreshSpells now enumerates GetNumTrackingTypes() / GetTrackingInfo(),
  which the DLL derives from the spellbook by tracking-aura effect. This
  drops the per-class spell/icon table and picks up server-custom
  trackers (e.g. Turtle's Find Trees) automatically.
- Selecting a tracker in the menu uses SetTracking(index) instead of
  CastSpell(slot, BOOKTYPE_SPELL).
- Keep the Druid Cat Form gate on Track Humanoids (5225) and the
  existing invalidSpells filter. Falls back to no entries if the tracking
  API is absent.

Active icon (GetTrackingTexture), cancel (CancelTrackingBuff), and the
hover tooltip (GameTooltip:SetTrackingSpell) were already native and are
unchanged.

modules/tracking.lua

@@ -3,56 +3,15 @@ pfUI:RegisterModule("tracking", function ()
   MINIMAP_TRACKING_FRAME:UnregisterAllEvents()
   MINIMAP_TRACKING_FRAME:Hide()
 
-  local function HasEntries(tbl)
-    for _ in pairs(tbl) do
-      return true
-    end
-    return nil
-  end
-
   local rawborder, border = GetBorderSize()
   local size = tonumber(C.appearance.minimap.tracking_size)
   local pulse = C.appearance.minimap.tracking_pulse == "1"
 
-  -- Tracking spells identified by SpellID + expected icon path.
-  -- SpellID is the primary identifier (stable, locale-independent).
-  -- Icon path is used as secondary confirmation when scanning the spellbook.
-  local knownTrackingSpells = {
-    any = {
-      { id = 2481,  icon = "Racial_Dwarf_FindTreasure"       }, -- Find Treasure
-      { id = 2580,  icon = "Spell_Nature_Earthquake"          }, -- Find Minerals
-      { id = 2383,  icon = "INV_Misc_Flower_02"               }, -- Find Herbs (Rank 1)
-      { id = 8387,  icon = "INV_Misc_Flower_02"               }, -- Find Herbs (Rank 2)
-      { id = 52917, icon = "INV_TradeSkillItem_03"            }, -- Find Trees (TurtleWow)
-    },
-    HUNTER = {
-      { id = 1494,  icon = "Ability_Tracking"                 }, -- Track Beasts
-      { id = 19883, icon = "Spell_Holy_PrayerOfHealing"       }, -- Track Humanoids
-      { id = 19884, icon = "Spell_Shadow_DarkSummoning"       }, -- Track Undead
-      { id = 19885, icon = "Ability_Stealth"                  }, -- Track Hidden
-      { id = 19880, icon = "Spell_Frost_SummonWaterElemental" }, -- Track Elementals
-      { id = 19878, icon = "Spell_Shadow_SummonFelHunter"     }, -- Track Demons
-      { id = 19882, icon = "Ability_Racial_Avatar"            }, -- Track Giants
-      { id = 19879, icon = "INV_Misc_Head_Dragon_01"          }, -- Track Dragonkin
-    },
-    PALADIN = {
-      { id = 5502,  icon = "Spell_Holy_SenseUndead"           }, -- Sense Undead
-    },
-    WARLOCK = {
-      { id = 5500,  icon = "Spell_Shadow_Metamorphosis"       }, -- Sense Demons
-    },
-    DRUID = {
-      { id = 5225,  icon = "Ability_Tracking"                 }, -- Track Humanoids (Cat Form only)
-    },
-  }
-
-  -- Build a flat lookup: spellId -> entry, for fast spellbook matching
-  local spellIdLookup = {}
-  for _, entries in pairs(knownTrackingSpells) do
-    for _, entry in ipairs(entries) do
-      spellIdLookup[entry.id] = entry
-    end
-  end
+  -- Tracking spells come from ClassicAPI's native GetNumTrackingTypes /
+  -- GetTrackingInfo (see the DLL's docs/API.md "Tracking"). The DLL
+  -- enumerates them straight from the spellbook by tracking-aura effect,
+  -- so there is no spell table to maintain here and server-custom trackers
+  -- (e.g. Turtle's Find Trees) are picked up automatically.
 
   local state = {
     texture = nil,
@@ -128,50 +87,24 @@ pfUI:RegisterModule("tracking", function ()
   end)
 
   function pfUI.tracking:RefreshSpells()
-    local playerClass = UnitClassBase("player")
-    local isCatForm = pfUI.tracking:PlayerIsDruidInCatForm(playerClass)
+    state.spells = {}
+    if not GetNumTrackingTypes then return end
 
-    -- Build set of valid SpellIDs for this class
-    local validIds = {}
-    for _, entry in ipairs(knownTrackingSpells.any) do
-      validIds[entry.id] = true
-    end
-    if knownTrackingSpells[playerClass] then
-      for _, entry in ipairs(knownTrackingSpells[playerClass]) do
-        validIds[entry.id] = true
-      end
-    end
+    -- Druid Track Humanoids (5225) only casts in Cat Form. Hide it out of
+    -- form so the menu never offers a tracker that would fail to cast.
+    local isCatForm = pfUI.tracking:PlayerIsDruidInCatForm(UnitClassBase("player"))
 
-    -- Druids only get Track Humanoids in Cat Form
-    if playerClass == "DRUID" and not isCatForm then
-      validIds[5225] = nil
-    end
-
-    -- Scan spellbook: match by icon path, confirm SpellID is valid for this class
-    for tabIndex = 1, GetNumSpellTabs() do
-      local _, _, offset, numSpells = GetSpellTabInfo(tabIndex)
-      for spellIndex = offset + 1, offset + numSpells do
-        local spellTexture = GetSpellTexture(spellIndex, BOOKTYPE_SPELL)
-        local spellName    = GetSpellName(spellIndex, BOOKTYPE_SPELL)
-
-        if pfUI.tracking.invalidSpells[spellName] then
-          spellTexture = nil
-        end
-
-        if spellTexture then
-          local lowerTexture = string.lower(spellTexture)
-          for spellId, entry in pairs(spellIdLookup) do
-            if validIds[spellId] and not state.spells[spellId]
-              and strfind(lowerTexture, string.lower(entry.icon)) then
-              state.spells[spellId] = {
-                index   = spellIndex,
-                name    = spellName,
-                texture = spellTexture,
-                spellId = spellId,
-              }
-            end
-          end
-        end
+    for i = 1, GetNumTrackingTypes() do
+      local name, texture, _, _, spellId = GetTrackingInfo(i)
+      local castable = not (spellId == 5225 and not isCatForm)
+      if name and texture and castable
+        and not pfUI.tracking.invalidSpells[name] then
+        state.spells[i] = {
+          index   = i,        -- tracking index, passed to SetTracking()
+          name    = name,
+          texture = texture,
+          spellId = spellId,
+        }
       end
     end
   end
@@ -187,7 +120,7 @@ pfUI:RegisterModule("tracking", function ()
     elseif not texture then
       state.texture = nil
 
-      if pulse and HasEntries(state.spells) then
+      if pulse and next(state.spells) ~= nil then
         pfUI.tracking.pulse = true
         pfUI.tracking.icon:SetTexture("Interface\\Icons\\INV_Misc_QuestionMark")
         pfUI.tracking.icon:SetVertexColor(1,1,1,1)
@@ -217,7 +150,7 @@ pfUI:RegisterModule("tracking", function ()
           checked = spell.texture == state.texture,
           arg1 = spell,
           func = function (arg1)
-            CastSpell(arg1.index, BOOKTYPE_SPELL)
+            SetTracking(arg1.index)
             CloseDropDownMenus()
           end
         })

pfUI.lua

@@ -23,7 +23,7 @@ do
   -- ClassicAPI dependency check.
   -- pfUI relies pervasively on the modern C_* / SuperWoW / nameplate / focus
   -- API surface that ClassicAPI polyfills, so presence is required.
-  local PFUI_CLASSIC_API_MIN     = 11201  -- (X*10000 + Y*100 + Z)
+  local PFUI_CLASSIC_API_MIN     = 11204  -- (X*10000 + Y*100 + Z)
   local PFUI_CLASSIC_API_LATEST  = PFUI_CLASSIC_API_MIN
   local PFUI_CLASSIC_API_WEBSITE = "https://github.com/brues-code/ClassicAPI"
   local PFUI_CLASSIC_API_LATEST_URL = PFUI_CLASSIC_API_WEBSITE .. "/releases/latest"