Initial commit MKD fixes

backend/migrations/create_office_equipment_history.sql

@@ -0,0 +1,21 @@
+-- История перемещений и событий по оборудованию (закупка, выдача, перемещения, ремонты, списание)
+DO $$
+BEGIN
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'office_equipment_history_type') THEN
+    CREATE TYPE office_equipment_history_type AS ENUM ('purchase', 'issue', 'transfer', 'repair', 'write_off');
+  END IF;
+END$$;
+
+CREATE TABLE IF NOT EXISTS office_equipment_history (
+  id                BIGSERIAL PRIMARY KEY,
+  equipment_id      BIGINT NOT NULL REFERENCES office_equipment(id) ON DELETE CASCADE,
+  event_type        office_equipment_history_type NOT NULL,
+  event_date        DATE NOT NULL,
+  assigned_to       TEXT,
+  assigned_from     TEXT,
+  reason            TEXT,
+  created_at        TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_equipment_history_equipment ON office_equipment_history(equipment_id);
+CREATE INDEX IF NOT EXISTS idx_equipment_history_date ON office_equipment_history(event_date DESC);