fix: enable stance/state bars for CoA custom classes with shapeshift forms

Vanilla Bartender4 assumes only DRUID/WARRIOR/WARLOCK/PRIEST/ROGUE/HERO have
shapeshift forms. CoA custom classes (Witchdoctor, Templar, …) can register
forms late at runtime and aren't in the whitelist, so the stance/state bar
never came up for them.

StanceBar.lua:
  - ApplyConfig() no longer Disable()s the module when GetNumShapeshiftForms()
    is 0 at config time. A disabled module never re-enables on
    UPDATE_SHAPESHIFT_FORMS, so late-registered forms were lost. We now just
    hide the bar frame.
  - Register UPDATE_SHAPESHIFT_FORMS and PLAYER_ENTERING_WORLD on the module
    itself and re-Enable() / show the bar when forms appear after the fact.

Options/Bar.lua:
  - The 'Hide in Stance/Form' visibility option was gated by a hard-coded
    stanceClasses whitelist. Add an OR-fallback on GetNumShapeshiftForms() > 0
    so CoA classes with forms get the UI.

StateBar.lua:
  - DefaultStanceMap only had vanilla entries. For unknown classes with live
    forms, synthesise a generic { id="formN", index=N } map at runtime so
    UpdateStates() can wire stance-based action bar swaps.

Bartender4/Options/Bar.lua

@@ -344,7 +344,10 @@ function Bar:GetOptionObject()
 					name = L["Hide in Stance/Form"],
 					desc = L["Hide this bar in a specific Stance or Form."],
 					values = getStanceTable,
-					hidden = function() return (not stanceClasses[class]) end,
+					-- CoA: custom classes (Witchdoctor, Templar, …) may have forms
+					-- but aren't in the vanilla stanceClasses whitelist. Show the
+					-- option whenever the player currently has any form available.
+					hidden = function() return (not (stanceClasses[class] or GetNumShapeshiftForms() > 0)) end,
 					disabled = customEnabled,
 				},
 				customNl = {

Bartender4/StanceBar.lua

@@ -48,18 +48,43 @@ function StanceBarMod:OnEnable()
 	self.bar:RegisterEvent("PLAYER_REGEN_ENABLED")
 	self.bar:RegisterEvent("ACTIONBAR_PAGE_CHANGED")
 	self:RegisterEvent("UPDATE_BINDINGS", "ReassignBindings")
+	-- CoA: re-enable / refresh when forms appear late (custom classes)
+	self:RegisterEvent("UPDATE_SHAPESHIFT_FORMS", "OnShapeshiftFormsUpdate")
+	self:RegisterEvent("PLAYER_ENTERING_WORLD", "OnShapeshiftFormsUpdate")
 	self:ReassignBindings()
 	self:ApplyConfig()
 end
 
+function StanceBarMod:OnShapeshiftFormsUpdate()
+	-- CoA: if the module is disabled but forms now exist (custom class form
+	-- registered after login), bring it back online.
+	if not self:IsEnabled() and GetNumShapeshiftForms() > 0 then
+		self:Enable()
+		return
+	end
+	if self:IsEnabled() and self.bar then
+		if GetNumShapeshiftForms() > 0 then
+			if self.bar.Show then self.bar:Show() end
+		else
+			if self.bar.Hide then self.bar:Hide() end
+		end
+	end
+end
+
 StanceBarMod.button_count = 10
 
 function StanceBarMod:ApplyConfig()
 	if not self:IsEnabled() then return end
 	self.bar:ApplyConfig(self.db.profile)
 
+	-- CoA: custom classes (Witchdoctor, Templar, …) may register forms late.
+	-- Don't Disable() the module if there are 0 forms right now — once disabled
+	-- we'd never come back when UPDATE_SHAPESHIFT_FORMS arrives. Just hide the bar
+	-- frame; UpdateStanceButtons() will re-show it when forms appear.
 	if GetNumShapeshiftForms() == 0 then
-		self:Disable()
+		if self.bar.Hide then self.bar:Hide() end
+	else
+		if self.bar.Show then self.bar:Show() end
 	end
 end
 

Bartender4/StateBar.lua

@@ -116,12 +116,34 @@ local DefaultStanceMap = setmetatable({}, { __index = function(t,k)
 end})
 Bartender4.StanceMap = DefaultStanceMap
 
+-- CoA: build a generic runtime stance map for classes the addon doesn't know
+-- about (Witchdoctor, Templar, …). We don't have spell-id metadata for them,
+-- so synthesise { id = "formN", index = N } entries based on live form count.
+local function BuildGenericStanceMap()
+	local num = GetNumShapeshiftForms()
+	if not num or num == 0 then return nil end
+	local map = {}
+	for i = 1, num do
+		map[i] = { id = ("form%d"):format(i), name = ("Form %d"):format(i), index = i }
+	end
+	return map
+end
+
 local stancemap
 function StateBar:UpdateStates(returnOnly)
 	if not self.buttons then return end
 	self.statebutton = {}
-	if not stancemap and DefaultStanceMap[playerclass] then
+	-- CoA: rebuild generic stance maps each call so late-registered forms get
+	-- picked up; vanilla classes keep their cached DefaultStanceMap entry.
+	if not stancemap then
+		if DefaultStanceMap[playerclass] then
 			stancemap = DefaultStanceMap[playerclass]
+		elseif GetNumShapeshiftForms() > 0 then
+			stancemap = BuildGenericStanceMap()
+		end
+	elseif not DefaultStanceMap[playerclass] then
+		-- generic map: refresh on every call in case form count changed
+		stancemap = BuildGenericStanceMap()
 	end
 
 	local statedriver