Harden Altoholic frames against partial alt records (no-value char getters)

DataStore char-based getters return *no value* for any module that hasn't
scanned a given char (DataStore.lua: 'if not arg1.lastUpdate then return end').
Fresh CoA alts have partial per-module data, so the frames crashed feeding
'no value' into format()/concat/arithmetic/pairs. Guarded every such site:
AccountSummary, Activity, BagUsage, Quests, Reputations, TabCharacters,
DrawCharacterTooltip, recipe tooltip. No DataStore contract change.

Altoholic/Tooltip.lua

@@ -448,7 +448,7 @@ local function GetRecipeOwners(professionName, link, recipeLevel)
 				table.insert(know, coloredName)
 			else
 				local currentLevel = DataStore:GetSkillInfo(character, professionName)
-				if currentLevel > 0 then
+				if currentLevel and currentLevel > 0 then		-- CoA: getter returns no value for chars DataStore_Skills hasn't scanned
 					if currentLevel < recipeLevel then
 						table.insert(willLearn, format("%s |r(%d)", coloredName, currentLevel))
 					else