covenant: build the Abomination Factory as what the data says it is (P6.2)

sql/updates/characters/master/2026_08_14_04_covenant_abomination_factory.sql

@@ -0,0 +1,25 @@
+--
+-- Abomination Factory (Necrolord unique covenant sanctum feature, GarrTalentTree 321).
+--
+-- One row per construct body the character has stitched. `recipeSpellId` is the "Construct Body: X" recipe
+-- (a SkillLineAbility.Spell of SkillLine 2787 "Abominable Stitching") that produced it - the 15 of them are
+-- identified by the server from client data as the stitching recipes whose spell carries
+-- SPELL_EFFECT_KILL_CREDIT (creature credit 167076 / 167581), so nothing here hardcodes an id list.
+--
+-- The client's own roster of the same 15 is CriteriaTree 88195 "Abominable Stitching - Build Abom":
+--   Chordy 325284, Roseboil 325451, Marz 325452, Flytrap 325453, Atticus 325454, Miru 325458, Neena 326379,
+--   Gas Bag 326380, Professor 326406, Toothpick 326407, Mama Tomalin 326408, Iron Phillip 338037,
+--   Guillotine 338039, Sabrina 338040, Naxx 338043.
+--
+-- Only the covenant sanctum (GarrType 111) has one, so the table is keyed by guid alone and is written and
+-- purged from Garrison::SaveToDB / Garrison::DeleteFromDB behind a GARRISON_TYPE_COVENANT check.
+--
+-- Idempotent.
+--
+CREATE TABLE IF NOT EXISTS `character_garrison_abomination_factory` (
+  `guid`          BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT 'Character GUID',
+  `recipeSpellId` INT UNSIGNED NOT NULL DEFAULT 0 COMMENT 'SkillLineAbility.Spell of the construct-body recipe',
+  `builtTime`     BIGINT NOT NULL DEFAULT 0 COMMENT 'unix time the construct was stitched',
+  PRIMARY KEY (`guid`, `recipeSpellId`),
+  KEY `idx_guid` (`guid`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Abomination Factory construct stable';