coa.5: refactor char display into guarded helpers; fix missed sites; restore login scan

- Extract AddCharacterTooltipHeader() + SetCharacterRowNameLevel() (Altoholic.lua);
  nil-guards centralized, callers in AccountSummary/Activity/BagUsage/Skills/tooltip.
- Fix sites the manual sweep missed: Skills.lua (row + skill ranks), Keys.lua x3,
  ShowClassIcons sort (Altoholic.lua:705, getters bypass their own or-0 via the wrapper).
- Restore login scan: OnPlayerAlive was ghost-only (fdcb25a) so iLvl never populated;
  now scans once per session. Removed dated DEBUG leftovers.

README.md

@@ -5,6 +5,10 @@ Altoholic: modified development for WotLK
 
 Ported for the Ascension CoA (Vol'jin) 3.3.5a client by the Exiles guild. Released as `*-coa.N` tags via Gitea Actions; see `Exiles/coa-altoholic`.
 
+- **3.3.002b-coa.5** — Refactor + completeness pass:
+  - Extracted the duplicated character header/row blocks into `Altoholic:AddCharacterTooltipHeader()` and `Altoholic:SetCharacterRowNameLevel()` — the nil-guards now live in one place instead of being copy-pasted across frames.
+  - Fixed crash sites the per-frame sweep had missed: `Skills.lua` (row + skill-rank tooltip), `Keys.lua` (×3 `format` with possibly-nil name), and the latent `ShowClassIcons` sort (`Altoholic.lua` — getters bypass their own `or 0` via the DataStore wrapper).
+  - Restored login scanning: `OnPlayerAlive` in `Altoholic.lua` + `DataStore_Inventory` was gated to ghost-only (commit fdcb25a), so inventory/iLvl never populated on login. Now scans once per session (still skips resurrect/Feign-Death rescans). Removed dated DEBUG leftovers.
 - **3.3.002b-coa.4** — Rebranded to the Exiles fork (title `Altoholic (Exiles)`; Thaoky/Telkar-RG still credited as Author). Hardened **all** Altoholic frames against partial alt records: DataStore char-based getters return *no value* for any module that hasn't scanned a char, and the frames assumed full data everywhere. Guarded every `format`/concat/arithmetic/`pairs` site across AccountSummary, Activity, BagUsage, Quests, Reputations, TabCharacters, `DrawCharacterTooltip`, and the recipe tooltip. No DataStore contract change.
 - **3.3.002b-coa.3** — More partial-record guards in `DataStore_Characters` (own alts seen via guild comm but never fully scanned):
   - `GetXPRate` — guard nil/zero `XPMax` (crashed AccountSummary; also fixes div-by-zero at max level).