Animations: wire remaining effects + 2-column options panel

- Shared FX toolkit in fx-celebrate.lua: mth_shake tween type, MTH_FX_Flash
  glow helper, MTH_CelebrateRunaway red shaking banner, gold title reset.
- pet.runaway, pet.happiness, pet.loyaltyup, pet.feed
- combat.ammoswap, combat.rangedswap, combat.mmprocs
- ui.zbar, ui.stable, ui.minimapping, ui.optionsclose
- book.model, book.search
- Options > Animations panel now uses a balanced two-column layout.
- CHANGELOG Animations entry expanded (no version bump).

modules/zhunter/zButtonPet.lua

@@ -312,6 +312,8 @@ local function zButtonPet_GetCorePetInfo()
 	return nil
 end
 
+local zButtonPet_LastLoyalty = nil
+
 local function zButtonPet_RefreshSavedPetState(saved, corePetInfo)
 	local hasLivePet = false
 	if type(UnitExists) == "function" then
@@ -343,8 +345,34 @@ local function zButtonPet_RefreshSavedPetState(saved, corePetInfo)
 	if happiness == nil and type(GetPetHappiness) == "function" then
 		happiness = GetPetHappiness()
 	end
+	local prevHappiness = saved["pet"]["happiness"]
 	saved["pet"]["happiness"] = happiness
 
+	-- Animations: flash the pet button when happiness or loyalty changes.
+	if type(MTH_FX_Flash) == "function" and type(MTH_FX_IsEnabled) == "function" then
+		if MTH_FX_IsEnabled("pet.happiness")
+			and prevHappiness ~= nil and happiness ~= nil and happiness ~= prevHappiness then
+			local target = getglobal("zButtonPet")
+			if target then
+				if happiness > prevHappiness then
+					MTH_FX_Flash(target, 0.30, 1.00, 0.35, 0.5)
+				else
+					MTH_FX_Flash(target, 1.00, 0.30, 0.30, 0.5)
+				end
+			end
+		end
+		local loyalty = corePetInfo and tonumber(corePetInfo.loyaltyLevel) or nil
+		if MTH_FX_IsEnabled("pet.loyaltyup") and loyalty ~= nil then
+			if zButtonPet_LastLoyalty ~= nil and loyalty > zButtonPet_LastLoyalty then
+				local target = getglobal("zButtonPet")
+				if target then
+					MTH_FX_Flash(target, 1.00, 0.82, 0.20, 0.6)
+				end
+			end
+			zButtonPet_LastLoyalty = loyalty
+		end
+	end
+
 	if isDead then
 		saved["pet"]["status"] = 1
 	elseif currentHealth and currentHealthMax and currentHealthMax > 0 then