M1：镜生域后端闭环——灵胚/照心试演/启镜原子闸门/执镜关系/命台租约/魂籍签名导出/死亡冷静期（迁移 001，测试 7 用例）

backend/app/domains/jingsheng/__init__.py

@@ -0,0 +1,37 @@
+"""镜生域：灵胚、启镜、执镜关系、命台、魂籍、死亡与冷静期（data-model.md §1）。"""
+
+from app.domains.jingsheng.identity import build_identity_record, verify_identity_record
+from app.domains.jingsheng.seat import SeatConflict, acquire_lease, emit_seat_event, release_lease
+from app.domains.jingsheng.service import (
+    abandon_embryo,
+    activate_embryo,
+    bind_event_store,
+    create_embryo,
+    death_cancel,
+    death_finalize,
+    death_request,
+    get_embryo,
+    list_embryos,
+    record_rehearsal,
+)
+from app.domains.jingsheng.service import patch_embryo
+
+__all__ = [
+    "SeatConflict",
+    "abandon_embryo",
+    "acquire_lease",
+    "activate_embryo",
+    "bind_event_store",
+    "build_identity_record",
+    "create_embryo",
+    "death_cancel",
+    "death_finalize",
+    "death_request",
+    "emit_seat_event",
+    "get_embryo",
+    "list_embryos",
+    "patch_embryo",
+    "record_rehearsal",
+    "release_lease",
+    "verify_identity_record",
+]