Replace libtotem with ClassicAPI's native totem tracker

ClassicAPI now ships GetTotemInfo/GetTotemTimeLeft/GetTotemDuration/
TargetTotem plus a native PLAYER_TOTEM_UPDATE event, backed by a
data-driven tracker (slot from the Spell.dbc summon effect, duration from
SpellDuration.dbc, and object-manager death detection). That's exactly
what libtotem hand-rolled -- and better -- so delete the library outright:
its spellid/icon tables, the CastSpellByName/CastSpell/UseAction hooks,
the SPELL_GO commit path, and the active-totem bookkeeping.

modules/totems.lua becomes a thin consumer of the native API:
- Driven by PLAYER_TOTEM_UPDATE; drop the shaman tick-poller that only
  existed because vanilla had no totem event.
- Fix the GetTotemInfo call sites: the native 1st return is tool presence,
  not "summoned", so key active state on name/start instead.
- Right-click a totem icon to TargetTotem it; tooltip shows remaining time
  via GetTotemTimeLeft.

modules/turtle-wow.lua: drop the Totemic Recall handler that poked
libtotem:Clean() -- the native tracker detects the totems despawning and
clears the slots itself. Also clean up the now-orphaned translation string
and a stale libtotem mention in libdebuff's comment.

env/translations_deDE.lua

@@ -876,7 +876,6 @@ pfUI_translation["deDE"] = {
   ["XP Percentage"] = nil,
   ["Yellow Border On Neutral Units"] = nil,
   ["Yes"] = nil,
-  ["You gain (.+) Mana from Totemic Recall"] = nil,
   ["You got"] = nil,
   ["Your interface is now set up.\n\nFor advanced configuration, just open the |cff33ffccpf|rUI settings via the escape menu or type \"|cffffffaa/pfui|r\" into the chat.\n\n Have a nice trip!\n\n|cffaaaaaa- Shagu"] = nil,
   ["Your items have been repaired for"] = nil,

env/translations_enUS.lua

@@ -892,7 +892,6 @@ pfUI_translation["enUS"] = {
   ["XP Percentage"] = nil,
   ["Yellow Border On Neutral Units"] = nil,
   ["Yes"] = nil,
-  ["You gain (.+) Mana from Totemic Recall"] = nil,
   ["You got"] = nil,
   ["Your interface is now set up.\n\nFor advanced configuration, just open the |cff33ffccpf|rUI settings via the escape menu or type \"|cffffffaa/pfui|r\" into the chat.\n\n Have a nice trip!\n\n|cffaaaaaa- Shagu"] = nil,
   ["Your items have been repaired for"] = nil,

env/translations_esES.lua

@@ -876,7 +876,6 @@ pfUI_translation["esES"] = {
   ["XP Percentage"] = "Porcentaje de exp.",
   ["Yellow Border On Neutral Units"] = "Borde amarillo en unidades neutrales",
   ["Yes"] = "Sí",
-  ["You gain (.+) Mana from Totemic Recall"] = nil,
   ["You got"] = "Obtienes",
   ["Your interface is now set up.\n\nFor advanced configuration, just open the |cff33ffccpf|rUI settings via the escape menu or type \"|cffffffaa/pfui|r\" into the chat.\n\n Have a nice trip!\n\n|cffaaaaaa- Shagu"] = "Ahora su interfaz está configurada.\n\nPara la configuración avanzada, abra la configuración |cff33ffccpf|rUI por el menú de escape o escriba \"|cffffffaa/pfui|r\" en el chat.",
   ["Your items have been repaired for"] = "Tus objetos se han reparado por",

env/translations_frFR.lua

@@ -876,7 +876,6 @@ pfUI_translation["frFR"] = {
   ["XP Percentage"] = "Pourcentage de la barre d'expérience",
   ["Yellow Border On Neutral Units"] = "Bordure jaune sur les unités neutres",
   ["Yes"] = "Oui",
-  ["You gain (.+) Mana from Totemic Recall"] = nil,
   ["You got"] = "Vous avez",
   ["Your interface is now set up.\n\nFor advanced configuration, just open the |cff33ffccpf|rUI settings via the escape menu or type \"|cffffffaa/pfui|r\" into the chat.\n\n Have a nice trip!\n\n|cffaaaaaa- Shagu"] = nil,
   ["Your items have been repaired for"] = "Vos objets ont été réparés pour",

env/translations_koKR.lua

@@ -876,7 +876,6 @@ pfUI_translation["koKR"] = {
   ["XP Percentage"] = "경험치 퍼센트",
   ["Yellow Border On Neutral Units"] = nil,
   ["Yes"] = nil,
-  ["You gain (.+) Mana from Totemic Recall"] = nil,
   ["You got"] = nil,
   ["Your interface is now set up.\n\nFor advanced configuration, just open the |cff33ffccpf|rUI settings via the escape menu or type \"|cffffffaa/pfui|r\" into the chat.\n\n Have a nice trip!\n\n|cffaaaaaa- Shagu"] = nil,
   ["Your items have been repaired for"] = nil,

env/translations_ruRU.lua

@@ -876,7 +876,6 @@ pfUI_translation["ruRU"] = {
   ["XP Percentage"] = "Процент опыта",
   ["Yellow Border On Neutral Units"] = "Желтые границы на нейтральных юнитах",
   ["Yes"] = "Да",
-  ["You gain (.+) Mana from Totemic Recall"] = nil,
   ["You got"] = "Вы получили",
   ["Your interface is now set up.\n\nFor advanced configuration, just open the |cff33ffccpf|rUI settings via the escape menu or type \"|cffffffaa/pfui|r\" into the chat.\n\n Have a nice trip!\n\n|cffaaaaaa- Shagu"] = "Теперь ваш интерфейс настроен.\n\nДля расширенной настройки откройте \"Настройки |cff33ffccpf|rUI\" с помощью escape меню или введите \"|cffffffaa/pfui|r\" в чат.\n\nЖелаю хорошего путешествия!\n\n|cffaaaaaa- Shagu",
   ["Your items have been repaired for"] = "Ваши предметы были отремонтированы за",

env/translations_zhCN.lua

@@ -877,7 +877,6 @@ pfUI_translation["zhCN"] = {
   ["XP Percentage"] = "经验百分比",
   ["Yellow Border On Neutral Units"] = "显示中立单位黄色边框",
   ["Yes"] = "是",
-  ["You gain (.+) Mana from Totemic Recall"] = "你从图腾召回获得了(.+)点法力值",
   ["You got"] = "你已得到",
   ["Your interface is now set up.\n\nFor advanced configuration, just open the |cff33ffccpf|rUI settings via the escape menu or type \"|cffffffaa/pfui|r\" into the chat.\n\n Have a nice trip!\n\n|cffaaaaaa- Shagu"] = "你的界面现在已经完成设置.高级设置请点击游戏菜单或者输入命令/pfui进行设置.祝您游戏愉快",
   ["Your items have been repaired for"] = "你的物品已经修好了",

env/translations_zhTW.lua

@@ -876,7 +876,6 @@ pfUI_translation["zhTW"] = {
   ["XP Percentage"] = "經驗百分比",
   ["Yellow Border On Neutral Units"] = nil,
   ["Yes"] = nil,
-  ["You gain (.+) Mana from Totemic Recall"] = nil,
   ["You got"] = nil,
   ["Your interface is now set up.\n\nFor advanced configuration, just open the |cff33ffccpf|rUI settings via the escape menu or type \"|cffffffaa/pfui|r\" into the chat.\n\n Have a nice trip!\n\n|cffaaaaaa- Shagu"] = "您的UI已經設置完畢.使用遊戲菜單或在聊天窗口輸入\"|cffffffaa/pfui|r\"開啟高級設置.祝您遊戲愉快！\n\n|cffaaaaaa- Shagu",
   ["Your items have been repaired for"] = "你的物品已經修好了",