feat(DRW-001) initial commit!

migrations/20260913142731_create_enchantments_table.up.sql

@@ -0,0 +1,16 @@
+CREATE TABLE enchantments (
+    id SERIAL PRIMARY KEY,
+    name TEXT NOT NULL UNIQUE,
+    min_tier SMALLINT NOT NULL,
+    max_tier SMALLINT NOT NULL,
+    image_url TEXT NOT NULL,
+    CONSTRAINT enchantment_tier_range CHECK (
+        min_tier BETWEEN 1 AND 5 AND max_tier BETWEEN 1 AND 5 AND min_tier <= max_tier
+    )
+);
+
+CREATE TABLE enchantment_attributes (
+    enchantment_id INTEGER NOT NULL REFERENCES enchantments(id) ON DELETE CASCADE,
+    attribute primary_attribute NOT NULL,
+    PRIMARY KEY (enchantment_id, attribute)
+);