메뉴 관리: 탭 분리·드래그 정렬·상단 트리·공개 접기 (v0.0.94)

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

db/migrations/017_navigation_hierarchy.sql

@@ -0,0 +1,9 @@
+-- 상단(primary) 네비게이션 계층·폴더(접기) 지원, 하단(footer)은 평면 유지
+ALTER TABLE navigation_items
+  ADD COLUMN IF NOT EXISTS parent_id UUID REFERENCES navigation_items (id) ON DELETE CASCADE,
+  ADD COLUMN IF NOT EXISTS is_folder BOOLEAN NOT NULL DEFAULT false;
+
+ALTER TABLE navigation_items DROP CONSTRAINT IF EXISTS navigation_items_location_label_url_key;
+
+CREATE INDEX IF NOT EXISTS navigation_items_location_parent_sort_idx
+  ON navigation_items (location, parent_id, sort_order ASC, label ASC);