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).

api/options-shell.lua

@@ -47,6 +47,24 @@ local function MTH_OPT_AnimateTabContent(tabKey)
 	end
 end
 
+-- Fade the options window out before hiding it, unless disabled.
+local function MTH_OPT_AnimateClose()
+	local frame = MetaHuntOptions
+	if not frame then return end
+	if not MTH_OPT_Sauce
+		or (type(MTH_FX_IsEnabled) == "function" and not MTH_FX_IsEnabled("ui.optionsclose")) then
+		frame:SetAlpha(1)
+		frame:Hide()
+		return
+	end
+	MTH_OPT_Sauce:FadeOut(frame, 0.22, "inQuad", {
+		onFinish = function()
+			frame:Hide()
+			frame:SetAlpha(1)
+		end,
+	})
+end
+
 local function MTH_RegisterEscClose(frameName)
 	if not (frameName and UISpecialFrames) then
 		return
@@ -103,7 +121,7 @@ local function MTH_EnsureOptionsFrame()
 		closeBtn:SetWidth(MTH_OPTIONS_CONST.CLOSE_BTN_SIZE)
 		closeBtn:SetHeight(MTH_OPTIONS_CONST.CLOSE_BTN_SIZE)
 		closeBtn:SetText(MTH_OPT_L("COMMON_CLOSE_SHORT", "X"))
-		closeBtn:SetScript("OnClick", function() MetaHuntOptions:Hide() end)
+		closeBtn:SetScript("OnClick", function() MTH_OPT_AnimateClose() end)
 	end
 
 	MTH_BuildOptionsTree()