coa.10: CoA reputation factions (data-driven) + custom-class icons + all-professions Skills

- Reputation view rebuilt data-driven from each char's scanned factions grouped
  by in-game category; CoA custom factions (and future ones) appear automatically.
  Old hardcoded tree kept only as an icon lookup.
- CoA custom-class icons (classes 12-32) render from bundled atlas
  Altoholic/images/coa-classes.blp (texcoords from coa-details) instead of the
  Warrior glue-icon fallback in ShowClassIcons.
- Skills tab shows ALL known professions (dynamic list incl Woodcutting/Woodworking),
  not 2 fixed slots; DataStore_Skills scans on PLAYER_ENTERING_WORLD/SKILL_LINES_CHANGED
  (fixes 'no profession data' that only scanned on ghost-release).

Altoholic/Frames/Reputations.xml

@@ -213,11 +213,11 @@
 				</Anchors>
 				<Scripts>
 					<OnLoad>
-						local faction = (UnitFactionGroup("player") == "Alliance") and FACTION_ALLIANCE or FACTION_HORDE
-						
-						UIDropDownMenu_SetWidth(self, 100) 
+						-- Default to "All factions"; the dropdown contents are built dynamically
+						-- from the categories actually scanned (see Reputations.lua / BuildModel).
+						UIDropDownMenu_SetWidth(self, 140)
 						UIDropDownMenu_SetButtonWidth(self, 20)
-						UIDropDownMenu_SetText(self, faction)
+						UIDropDownMenu_SetText(self, ALL)
 						UIDropDownMenu_Initialize(self, Altoholic.Reputations.DropDownFaction_Initialize)
 					</OnLoad>
 				</Scripts>