coa.17: comprehensive partial-data hardening + DataStore_Characters login scan + Skills strip cap

- Hardening sweep across DataStore_* (softened crash-asserts in Talents/Containers/Quests
  to graceful nil) + Altoholic frames (guarded remaining getter results).
- DataStore_Characters: scan on login (was ghost-gated -> name/level/class never populated;
  the core 'no character data' cause).
- Skills tab: cap inline professions at 6 (+N) so the strip stops overflowing into Cooking.

DataStore_Characters/DataStore_Characters.lua

@@ -86,10 +86,15 @@ local function OnPlayerMoney()
 	addon.ThisCharacter.money = GetMoney();
 end
 
+local hasScannedThisSession
 local function OnPlayerAlive()
-	-- print("DataStore_Characters.lua") -- DEBUG 2025 07 21
-	if not UnitIsGhost("player") then return end -- only scan if player released spirit and went to graveyard
-	
+	-- CoA: scan once at login. PLAYER_ALIVE also fires on resurrect / Feign-Death cancel
+	-- (unchanged data), so skip those. The previous "only when ghost" gate skipped LOGIN
+	-- too, so name/level/class/money/XP never populated on a normal login - the root of
+	-- "no character data". (Same trap as DataStore_Inventory / _Skills; see commit fdcb25a.)
+	if hasScannedThisSession then return end
+	hasScannedThisSession = true
+
 	local character = addon.ThisCharacter
 
 	character.name = UnitName("player")		-- to simplify processing a bit, the name is saved in the table too, in addition to being part of the key
@@ -263,7 +268,7 @@ local function _GetGuildInfo(character)
 end
 
 local function _GetPlayTime(character)
-	return character.played
+	return character.played or 0		-- CoA: nil on partial-data alt; callers do arithmetic (AccountSummary)
 end
 
 local function _GetLocation(character)