Paragon: AE/TE currency, Character Advancement commit/reset, panel SQL

- mod-paragon: Paragon_Essence addon channel (PARAA), commit queue, resets,
  spell chain learn with passive child tracking, silence-window hints for
  cascade learns, trainer exemptions for pet/portal trainers
- SQL: character_paragon_panel_* tables, paragon_spell_ae_cost world data
- Core: Player Paragon class talent learn hook; Trainer skip for Paragon
  where appropriate
- Ignore local build-worldserver.log

Co-authored-by: Cursor <cursoragent@cursor.com>

src/server/game/Entities/Creature/Trainer.cpp

@@ -208,6 +208,46 @@ namespace Trainer
 
     bool Trainer::IsTrainerValidForPlayer(Player const* player) const
     {
+        // Paragon (class 12) learns class abilities exclusively through the
+        // Character Advancement panel (mod-paragon). Generic class trainers
+        // refuse interaction. Pet trainers, mount/profession trainers, and
+        // specialized portal/teleport trainers (mage portal NPCs) stay valid:
+        //   - Pet trainers: pet-skill purchases for hunter pets aren't covered
+        //     by the panel and should remain trainer-driven.
+        //   - Portal/teleport trainers: identified at runtime as a Class-type
+        //     trainer whose spells are ALL TELEPORT_UNITS or TRANS_DOOR
+        //     effects. The big general mage trainer fails this check (it
+        //     teaches Fireball, Frostbolt, etc.) and is correctly blocked.
+        if (player && player->getClass() == CLASS_PARAGON
+            && GetTrainerType() == Type::Class
+            && !_spells.empty())
+        {
+            bool onlyPortalsAndTeleports = true;
+            for (Spell const& s : _spells)
+            {
+                SpellInfo const* info = sSpellMgr->GetSpellInfo(s.SpellId);
+                if (!info)
+                    continue;
+                bool isPortalOrTeleport = false;
+                for (SpellEffectInfo const& eff : info->GetEffects())
+                {
+                    if (eff.Effect == SPELL_EFFECT_TELEPORT_UNITS
+                        || eff.Effect == SPELL_EFFECT_TRANS_DOOR)
+                    {
+                        isPortalOrTeleport = true;
+                        break;
+                    }
+                }
+                if (!isPortalOrTeleport)
+                {
+                    onlyPortalsAndTeleports = false;
+                    break;
+                }
+            }
+            if (!onlyPortalsAndTeleports)
+                return false;
+        }
+
         if (!GetTrainerRequirement())
             return true;
 

src/server/game/Entities/Player/Player.cpp

@@ -14052,7 +14052,10 @@ void Player::LearnTalent(uint32 talentId, uint32 talentRank, bool command /*= fa
         return;
 
     // xinef: prevent learn talent for different class (cheating)
-    if ((getClassMask() & talentTabInfo->ClassMask) == 0)
+    // mod-paragon: Paragon (class 12) can spec into any class's talent tree
+    // via the Character Advancement panel; bypass the class-mask check.
+    if (getClass() != CLASS_PARAGON
+        && (getClassMask() & talentTabInfo->ClassMask) == 0)
         return;
 
     // xinef: find current talent rank