Common.lua: fall back to player's class when entry.Class is missing

Ascension's `C_CharacterAdvancement.GetEntryByInternalID` returns the
active character's *own* class entries with `Class` empty (the API
treats the player's class as implicit), while still returning `Class`
populated for every other class.

The entry-walk gate `if entry and entry.Class then ...` was therefore
silently dropping every talent of whatever class you ran the export
on. A Venomancer alt would correctly capture the 41 *other* classes'
talents/skills but produce zero rows for Prophet itself, leaving the
db.exil.es Venomancer page perpetually missing icons for Rotting Away,
Lure, Envenomed Weapons, and friends.

Cache UnitClass("player") at the start of C.Run and substitute it for
`entry.Class` whenever that field is missing or empty. The bucketing
key in `info.cls` now matches the localized class string (consistent
with how the other 41 classes show up in CoaExporterCatalog.talents).

CoaExporter/Catalogs/Common.lua

@@ -89,7 +89,22 @@ function C.Run(filter, callback)
         return false
     end
 
-    local ctx = { startedAt = date(), filter = filter or "all" }
+    -- Ascension's GetEntryByInternalID returns the active character's
+    -- *own* class entries with `Class` unset (the API treats the player's
+    -- class as implicit). Cache the player's class so we can substitute
+    -- it when entry.Class is missing — otherwise an export from a
+    -- Venomancer alt would correctly capture the 41 *other* classes but
+    -- silently drop every Venomancer talent at the gate.
+    local playerLocalizedClass, playerClassFile = UnitClass("player")
+    playerLocalizedClass = playerLocalizedClass or "Unknown"
+    playerClassFile = playerClassFile or "UNKNOWN"
+
+    local ctx = {
+        startedAt = date(),
+        filter = filter or "all",
+        playerClass = playerLocalizedClass,
+        playerClassFile = playerClassFile,
+    }
     for _, col in ipairs(collectors) do
         if col.onStart then col.onStart(ctx) end
     end
@@ -100,7 +115,9 @@ function C.Run(filter, callback)
     local total = #entryKeys
     local idx = 1
 
-    log(string.format("scanning %d entries for [%s]", total, ctx.filter))
+    log(string.format(
+        "scanning %d entries for [%s] (active class: %s/%s)",
+        total, ctx.filter, playerLocalizedClass, playerClassFile))
     C._isRunning = true
 
     local frame = CreateFrame("Frame")
@@ -124,7 +141,16 @@ function C.Run(filter, callback)
                 if id then entry = C_CharacterAdvancement.GetEntryByInternalID(id) end
             end
 
-            if entry and entry.Class then
+            -- Pre-relax: keep entries whose Class field is missing/empty.
+            -- They're typically the active character's own class (see the
+            -- comment near `playerLocalizedClass` above). We bucket them
+            -- under the player's class string further down.
+            local entryClass = entry and entry.Class
+            if entry and (not entryClass or entryClass == "") then
+                entryClass = playerLocalizedClass
+            end
+
+            if entry and entryClass and entryClass ~= "" then
                 -- Build a normalized info bag every collector can use.
                 local spellId = 0
                 local allSpells = {}
@@ -150,20 +176,27 @@ function C.Run(filter, callback)
                 local tierVal = tonumber(entry.PositionY) or tonumber(entry.Row) or tonumber(entry.y) or 0
                 local colVal  = tonumber(entry.PositionX) or tonumber(entry.Column) or tonumber(entry.x) or tonumber(entry.Col) or 0
 
-                -- Garbage filter: tier=0/col=0/no-icon AND no-spell entries
+                local entryIcon = (type(entry.Icon) == "string" and entry.Icon ~= "") and entry.Icon or ""
+                local hasAnyIcon = (icon and icon ~= "") or entryIcon ~= ""
+
+                -- Garbage filter: drop entries that have no spell/coords AND
+                -- no icon from either source (GetSpellInfo or entry.Icon).
+                -- entry.Icon catches spec-root talents whose only identity
+                -- is a server-resolved icon (e.g. Venomancer/Fortitude root).
                 local valid = true
-                if tierVal == 0 and colVal == 0 and (not icon or icon == "") then valid = false end
-                if spellId == 0 and (not icon or icon == "") then valid = false end
+                if tierVal == 0 and colVal == 0 and not hasAnyIcon then valid = false end
+                if spellId == 0 and not hasAnyIcon then valid = false end
 
                 if valid then
                     local info = {
-                        cls       = tostring(entry.Class),
+                        cls       = tostring(entryClass),
                         tab       = tostring(entry.Tab or "General"),
                         entryType = tostring(entry.Type or "Talent"),
                         name      = name,
                         spellId   = spellId,
                         allSpells = allSpells,
                         icon      = icon or "",
+                        entryIcon = entryIcon,
                         tier      = tierVal,
                         col       = colVal,
                         tooltip   = tooltip,