Use ClassicAPI GetSpellBonusDamage/Healing for spell-power conditionals

Migrate the healing/*_power/spell_power conditionals off Nampower's
GetSpellPower to ClassicAPI GetSpellBonusDamage(school) / GetSpellBonusHealing.
Both read the same client field, so the per-school damage values are identical
while dropping the Nampower v2.31 gate.

Fixes healing/healingpower: GetSpellPower returns no healing value, so they were
returning the 2nd school (holy spell damage) as a stand-in for +healing.
GetSpellBonusHealing returns the real (derived) +healing.

Prune the now-unused Nampower GetSpellPower wrapper, feature-table entry, and
feature flag.

ClassicAPI.lua

@@ -181,6 +181,22 @@ function API.GetSpellEffectMechanics(spellID)
     return nil
 end
 
+-- Flat spell-damage bonus (spell power) for a magic school, as a number.
+-- school is 1-based: 1=Physical, 2=Holy, 3=Fire, 4=Nature, 5=Frost, 6=Shadow,
+-- 7=Arcane. Reads the same client field nampower's GetSpellPower does -- exact,
+-- with gear/enchants/buffs/talents/set bonuses baked in.
+function API.GetSpellBonusDamage(school)
+    return GetSpellBonusDamage(school)
+end
+
+-- Flat healing bonus (+healing), as a number. Vanilla has no healing-done field,
+-- so ClassicAPI derives it from gear/enchant/buff MOD_HEALING_DONE plus
+-- stat-conversion talents (e.g. Spiritual Guidance) -- exact, not a holy-damage
+-- proxy.
+function API.GetSpellBonusHealing()
+    return GetSpellBonusHealing()
+end
+
 --------------------------------------------------------------------------------
 -- State
 --------------------------------------------------------------------------------

Conditionals.lua

@@ -444,24 +444,26 @@ local stat_checks = {
     attackpower = function() local base, pos, neg = UnitAttackPower("player"); return base + pos + neg end,
     rap = function() local base, pos, neg = UnitRangedAttackPower("player"); return base + pos + neg end,
     rangedattackpower = function() local base, pos, neg = UnitRangedAttackPower("player"); return base + pos + neg end,
-    healing = function() local _, h = CleveRoids.NampowerAPI.GetSpellPower(); return h or 0 end,
-    healingpower = function() local _, h = CleveRoids.NampowerAPI.GetSpellPower(); return h or 0 end,
+    healing = function() return CleveRoids.ClassicAPI.GetSpellBonusHealing() or 0 end,
+    healingpower = function() return CleveRoids.ClassicAPI.GetSpellBonusHealing() or 0 end,
 
-    -- Bonus Spell Damage by School (Nampower v2.31+ GetSpellPower)
-    -- GetSpellPower() returns: physical, holy, fire, nature, frost, shadow, arcane
-    arcane_power = function() return select(7, CleveRoids.NampowerAPI.GetSpellPower()) or 0 end,
-    fire_power = function() return select(3, CleveRoids.NampowerAPI.GetSpellPower()) or 0 end,
-    frost_power = function() return select(5, CleveRoids.NampowerAPI.GetSpellPower()) or 0 end,
-    nature_power = function() return select(4, CleveRoids.NampowerAPI.GetSpellPower()) or 0 end,
-    shadow_power = function() return select(6, CleveRoids.NampowerAPI.GetSpellPower()) or 0 end,
+    -- Bonus Spell Damage by School (ClassicAPI GetSpellBonusDamage)
+    -- school: 1=Physical, 2=Holy, 3=Fire, 4=Nature, 5=Frost, 6=Shadow, 7=Arcane
+    arcane_power = function() return CleveRoids.ClassicAPI.GetSpellBonusDamage(7) or 0 end,
+    fire_power = function() return CleveRoids.ClassicAPI.GetSpellBonusDamage(3) or 0 end,
+    frost_power = function() return CleveRoids.ClassicAPI.GetSpellBonusDamage(5) or 0 end,
+    nature_power = function() return CleveRoids.ClassicAPI.GetSpellBonusDamage(4) or 0 end,
+    shadow_power = function() return CleveRoids.ClassicAPI.GetSpellBonusDamage(6) or 0 end,
 
     -- Highest spell power across all schools
     spell_power = function()
-        local p, h, fi, n, fr, s, a = CleveRoids.NampowerAPI.GetSpellPower()
-        if p then
-            return math.max(p, h, fi, n, fr, s, a)
+        local API = CleveRoids.ClassicAPI
+        local best = 0
+        for s = 1, 7 do
+            local v = API.GetSpellBonusDamage(s) or 0
+            if v > best then best = v end
         end
-        return 0
+        return best
     end,
 
     -- Defensive Stats

NampowerAPI.lua

@@ -71,7 +71,6 @@
 
     Spell Miss Events (v2.31+):
     - SPELL_MISS_SELF / SPELL_MISS_OTHER - Spell miss/resist/immune/dodge/etc.
-    - GetSpellPower([mode]) - Player mod damage done for all 7 schools
 
     Aura Event State Parameter (v2.32+):
     - Buff/debuff events include 7th `state` parameter (0=added, 1=removed, 2=modified)
@@ -364,9 +363,8 @@ API.VERSION_REQUIREMENTS = {
     ["AuraDurationEvents"]      = { 2, 30, 0 },
     ["GetPlayerAuraDuration"]   = { 2, 30, 0, "GetPlayerAuraDuration" },
 
-    -- v2.31+ - Spell miss events and spell power query
+    -- v2.31+ - Spell miss events
     ["SpellMissEvents"]         = { 2, 31, 0 },  -- SPELL_MISS_SELF/OTHER events
-    ["GetSpellPower"]           = { 2, 31, 0, "GetSpellPower" },
 
     -- v2.32+ - Aura event state parameter and stack removal fix
     ["AuraEventState"]          = { 2, 32, 0 },
@@ -575,9 +573,8 @@ local function InitializeFeatures()
     f.hasAuraDurationEvents = API.HasFeature("AuraDurationEvents")
     f.hasGetPlayerAuraDuration = API.HasFeature("GetPlayerAuraDuration")
 
-    -- v2.31+ Spell miss events and spell power
+    -- v2.31+ Spell miss events
     f.hasSpellMissEvents = API.HasFeature("SpellMissEvents")
-    f.hasGetSpellPower = API.HasFeature("GetSpellPower")
 
     -- v2.32+ Aura event state parameter
     f.hasAuraEventState = API.HasFeature("AuraEventState")
@@ -3387,15 +3384,6 @@ API.MISS_INFO = {
 -- SPELL POWER QUERY (v2.31+)
 --------------------------------------------------------------------------------
 
--- Get spell power for all 7 damage schools (v2.31+)
--- mode: optional mode parameter passed to GetSpellPower
--- Returns: physical, holy, fire, nature, frost, shadow, arcane (or nil if unavailable)
-function API.GetSpellPower(mode)
-    if not API.features.hasGetSpellPower or not _G.GetSpellPower then
-        return nil, nil, nil, nil, nil, nil, nil
-    end
-    return _G.GetSpellPower(mode)
-end
 
 -- Get duration of a spell in milliseconds (v2.38+)
 -- For channeling spells: returns the channel duration.