Paragon: narrow weapon bypass; cascade talent ranks; Savage Defense

* Weapon-narrow: replace blanket EquippedItemSubClassMask bypass with an
  explicit allowlist (IsParagonWeaponSubclassWildcardSpell, currently
  Maelstrom Weapon 51528 only). Applied at all three gates: Player::
  HasItemFitToSpellRequirements, Player::CheckAttackFitToAuraRequirement,
  and Aura::IsProcTriggeredOnEvent. Maelstrom Weapon still procs from any
  weapon for Paragon, but Hack and Slash / Sword / Mace Specialization
  remain correctly weapon-gated.
* Talent ability-rank cascade: TeachLevelGatedAbilityChainNoPanel +
  CascadeRanksForTalentLearnSpellEffects walk the SPELL_EFFECT_LEARN_SPELL
  chain a talent rank grants and learn each rank up to the player's level.
  Wired into HandleCommit (on talent purchase) and OnPlayerLevelChanged
  (on level-up). Fixes Mangle (and any future LEARN_SPELL talent) being
  stuck at rank 1 because Player::learnSkillRewardedSpells is intentionally
  disabled for Paragon's class skill lines.
* Riding-skill gate for flight forms (IsParagonSpellAllowedByRidingSkill):
  Flight Form (33943) requires Expert Riding (34090); Swift Flight Form
  (40120) requires Artisan Riding (34091). Applied in PanelLearnSpellChain
  and TeachLevelGatedAbilityChainNoPanel so the cascade can't push past a
  rank the player isn't trained for. Also backticks `rank` in the level-up
  query (MySQL reserved word).
* Savage Defense (62600) on the panel: the SpellData bake's blanket
  SPELL_ATTR0_PASSIVE filter dropped Savage Defense even though Druid
  trainer 33 sells it at level 40. Bake (in fractured-tooling) now carves
  out a small PASSIVE_TRAINER_ALLOWLIST and the regenerated
  paragon_spell_ae_cost.sql + 2026_05_11_05.sql migration surface it on
  the Druid Feral spell tab.

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

src/server/game/Entities/Unit/Unit.h

@@ -2287,6 +2287,19 @@ private:
 // beyond what they already include via Unit.h's transitive headers.
 [[nodiscard]] bool ParagonFamilyMatches(Unit const* listener, uint32 expectedFamily, uint32 actualFamily);
 
+// Fractured / Paragon: returns true iff `spellId` is on the curated allowlist
+// of cross-class proc talents whose `EquippedItemSubClassMask` should be
+// bypassed for Paragon casters (e.g. Maelstrom Weapon ranks 51528-51532).
+// Used by `Player::HasItemFitToSpellRequirements`,
+// `Player::CheckAttackFitToAuraRequirement`, and
+// `Aura::IsProcTriggeredOnEvent` to let these specific talents fire from
+// any equipped weapon while keeping weapon-specialization talents
+// (Sword Specialization, Mace Specialization, Hack and Slash, Two-Handed
+// Weapon Specialization, etc.) gated by their stock weapon-class mask.
+// The allowlist is matched against `SpellInfo::GetFirstRankSpell()`'s id
+// so all ranks of a talent are covered by listing the rank-1 id.
+[[nodiscard]] bool IsParagonWeaponSubclassWildcardSpell(uint32 spellId);
+
 namespace Acore
 {
     // Binary predicate for sorting Units based on percent value of a power