replace poll-until-cancel OnUpdate frames with C_Timer / RunNextFrame

Seven ad-hoc OnUpdate handlers were only spinning long enough to reach
a known deadline or a next-frame defer, then unhooking themselves.
Convert them to their proper primitives:

- autovendor: 0.3s wait after junk sell → C_Timer.After(0.3, ...)
- innervatecall: cooldown-expiry ready ping → C_Timer.After(cd, ...)
- focus: re-arm UI_ERROR_MESSAGE next tick → RunNextFrame
- macrotweak: conflict scan after addons load → RunNextFrame
- ui-widgets (CreateQuestionDialog): font-measure resize → RunNextFrame
- libdebuff: post-PEW Nampower init → RunNextFrame
- bubbles: WorldFrame scan after chat event → RunNextFrame

Net -18 lines and no more throwaway frames sitting on the OnUpdate list.

modules/autovendor.lua

@@ -19,12 +19,7 @@ pfUI:RegisterModule("autovendor", function ()
     local startGold = GetMoney()
     C_MerchantFrame.SellAllJunkItems()
 
-    local reporter = CreateFrame("Frame")
-    reporter.deadline = GetTime() + 0.3
-    reporter:SetScript("OnUpdate", function()
-      if GetTime() < this.deadline then return end
-      this:SetScript("OnUpdate", nil)
-      this:Hide()
+    C_Timer.After(0.3, function()
       local income = GetMoney() - startGold
       if income > 0 then
         DEFAULT_CHAT_FRAME:AddMessage(T["Your vendor trash has been sold and you earned"] .. " " .. CreateGoldString(income))

modules/bubbles.lua

@@ -12,7 +12,9 @@ pfUI:RegisterModule("bubbles", function ()
   pfUI.bubbles:RegisterEvent("CHAT_MSG_MONSTER_PARTY")
 
   pfUI.bubbles:SetScript("OnEvent", function()
-    pfUI.bubbles:SetScript("OnUpdate", pfUI.bubbles.ScanBubbles)
+    -- Bubble frames are attached to WorldFrame after the chat event fires,
+    -- so wait one tick before scanning.
+    RunNextFrame(function() pfUI.bubbles:ScanBubbles() end)
   end)
 
   function pfUI.bubbles:IsBubble(f)
@@ -66,7 +68,5 @@ pfUI:RegisterModule("bubbles", function ()
           end)
         end
     end
-
-    pfUI.bubbles:SetScript("OnUpdate", nil)
   end
 end)

modules/focus.lua

@@ -50,10 +50,8 @@ function SlashCmdList.PFFOCUSNAME(msg)
     FocusUnit("target")
   end
 
-  local restore = CreateFrame("Frame")
-  restore:SetScript("OnUpdate", function()
+  RunNextFrame(function()
     UIErrorsFrame:RegisterEvent("UI_ERROR_MESSAGE")
-    restore:SetScript("OnUpdate", nil)
   end)
 
   if prevGUID and prevGUID ~= "0x0000000000000000" then

modules/innervatecall.lua

@@ -96,14 +96,10 @@ pfUI:RegisterModule("innervatecall", function ()
       end
     end
 
-    local readyAt = GetTime() + cdRemaining
-    frame:SetScript("OnUpdate", function()
-      if GetTime() >= readyAt then
-        frame:SetScript("OnUpdate", nil)
-        local ch = GetAnnounceChannel()
-        if ch then
-          SendChatMessage(">> Innervate is ready <<", ch)
-        end
+    C_Timer.After(cdRemaining, function()
+      local ch = GetAnnounceChannel()
+      if ch then
+        SendChatMessage(">> Innervate is ready <<", ch)
       end
     end)
   end)

modules/macrotweak.lua

@@ -66,9 +66,5 @@ pfUI:RegisterModule("macrotweak", function ()
   end)
 
   -- Check conflicts after one tick so all addons have finished loading
-  local watcher = CreateFrame("Frame")
-  watcher:SetScript("OnUpdate", function()
-    this:SetScript("OnUpdate", nil)
-    CheckConflicts()
-  end)
+  RunNextFrame(CheckConflicts)
 end)