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/models/__init__.py

@@ -16,6 +16,7 @@ from app.models.governance import (
 )
 from app.models.idempotency import IdempotencyKey
 from app.models.imports import CharacterImportJob, ImportItem
+from app.models.jingsheng import Custodianship, EmbryoDraft, IdentityRecord, RuntimeSeat
 from app.models.lorebook import Lorebook, LorebookEntry
 from app.models.mcp_servers import McpServer
 from app.models.memory import Memory, MemoryLink

backend/app/models/character.py

@@ -41,3 +41,13 @@ class Character(Base):
     )
     activated_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
     archived_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    # ── rewrite/1.0 镜生域增量列（data-model.md §1）：来源、道体锚点、死亡与冷静期 ──
+    source: Mapped[str] = mapped_column(
+        String(40), nullable=False, default="original", server_default="original", index=True
+    )
+    identity_baseline_json: Mapped[str] = mapped_column(
+        Text, nullable=False, default="{}", server_default="{}"
+    )
+    death_requested_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    calm_period_until: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    died_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))

backend/app/models/jingsheng.py

@@ -0,0 +1,84 @@
+"""镜生域模型：灵胚、执镜关系、命台、魂籍（data-model.md §1）。
+
+- 灵胚只有预备身份，启镜（activate）才产生正式人物与执镜关系；
+- 命台人物粒度唯一（UNIQUE(character_id)），租约到期可被接管，epoch 递增；
+- 魂籍版本不可变（UNIQUE(character_id, version)），签名绑定人物与版本。
+"""
+
+from datetime import datetime
+
+from sqlalchemy import DateTime, ForeignKey, Integer, String, Text, UniqueConstraint
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.core.ids import new_custodianship_id, new_embryo_id, new_identity_record_id, new_seat_id
+from app.core.time import utc_now
+from app.db.base import Base
+
+
+class EmbryoDraft(Base):
+    """灵胚：启镜前的可审阅草稿。放弃灵胚是删除草稿，不是人物死亡。"""
+
+    __tablename__ = "embryo_drafts"
+
+    id: Mapped[str] = mapped_column(String(80), primary_key=True, default=new_embryo_id)
+    owner_scope: Mapped[str] = mapped_column(String(80), nullable=False, index=True)
+    # drafting / previewing / confirming / activated / abandoned
+    status: Mapped[str] = mapped_column(String(40), nullable=False, default="drafting", index=True)
+    # original / adopted / imported / serendipity
+    source: Mapped[str] = mapped_column(String(40), nullable=False, default="original")
+    name: Mapped[str] = mapped_column(String(120), nullable=False)
+    description: Mapped[str | None] = mapped_column(Text)
+    identity_baseline_json: Mapped[str] = mapped_column(Text, nullable=False, default="{}")
+    # 照心试演引用：[{run_id, prompt, performed_at}]，内容在事件日志，不入正式经历
+    rehearsals_json: Mapped[str] = mapped_column(Text, nullable=False, default="[]")
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=utc_now)
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=utc_now, onupdate=utc_now
+    )
+
+
+class Custodianship(Base):
+    """执镜关系：治理责任（1.0 一对一），与缘契（covenants）严格分离。"""
+
+    __tablename__ = "custodianships"
+
+    id: Mapped[str] = mapped_column(String(80), primary_key=True, default=new_custodianship_id)
+    character_id: Mapped[str] = mapped_column(
+        String(80), ForeignKey("characters.id"), nullable=False, unique=True, index=True
+    )
+    custodian_scope: Mapped[str] = mapped_column(String(80), nullable=False, index=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=utc_now)
+
+
+class RuntimeSeat(Base):
+    """命台：人物唯一权威运行位置；holder 持有租约，过期可接管，epoch 每次获取递增。"""
+
+    __tablename__ = "runtime_seats"
+
+    id: Mapped[str] = mapped_column(String(80), primary_key=True, default=new_seat_id)
+    character_id: Mapped[str] = mapped_column(
+        String(80), ForeignKey("characters.id"), nullable=False, unique=True, index=True
+    )
+    epoch: Mapped[int] = mapped_column(Integer, nullable=False, default=1)
+    holder: Mapped[str | None] = mapped_column(String(120))
+    lease_expires_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), default=utc_now, onupdate=utc_now
+    )
+
+
+class IdentityRecord(Base):
+    """魂籍：可验证、版本化的身份与状态包。版本不可变；复制不能凭相同 ID 冒充原人物。"""
+
+    __tablename__ = "identity_records"
+    __table_args__ = (UniqueConstraint("character_id", "version", name="uq_identity_char_version"),)
+
+    id: Mapped[str] = mapped_column(String(80), primary_key=True, default=new_identity_record_id)
+    character_id: Mapped[str] = mapped_column(
+        String(80), ForeignKey("characters.id"), nullable=False, index=True
+    )
+    version: Mapped[int] = mapped_column(Integer, nullable=False)
+    payload_json: Mapped[str] = mapped_column(Text, nullable=False)
+    digest: Mapped[str] = mapped_column(String(64), nullable=False)
+    signature: Mapped[str] = mapped_column(String(128), nullable=False)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=utc_now)

backend/app/models/runtime.py

@@ -14,11 +14,18 @@ class Run(Base):
     __tablename__ = "runs"
 
     id: Mapped[str] = mapped_column(String(80), primary_key=True, default=new_run_id)
-    character_id: Mapped[str] = mapped_column(String(80), ForeignKey("characters.id"), index=True)
+    # rewrite/1.0：照心试演（kind=rehearsal）无正式人物，character_id 允许为空
+    character_id: Mapped[str | None] = mapped_column(
+        String(80), ForeignKey("characters.id"), index=True, nullable=True
+    )
     session_id: Mapped[str | None] = mapped_column(
         String(80), ForeignKey("chat_sessions.id"), index=True
     )
     status: Mapped[str] = mapped_column(String(40), nullable=False, default="queued", index=True)
+    # run.kind：foreground / background_task / awakening / rehearsal（契约词典 §8.2）
+    kind: Mapped[str] = mapped_column(
+        String(40), nullable=False, default="foreground", server_default="foreground"
+    )
     goal: Mapped[str | None] = mapped_column(String(300))
     origin: Mapped[str] = mapped_column(String(40), nullable=False, default="chat")
     model_hint: Mapped[str | None] = mapped_column(String(120))