M6：缘契、人格与世界——契约版本链、铸魂分灵、河图境界与三界分流

- 缘契域 domains/yuanqi：covenants（当前版）+ covenant_events（不可变历史）；提议—问心—铭契—撤回全链；边界变更立即生效；多维关系并存，服务层拒绝 affinity/好感度单一键；浪漫维度成人资格标记位
- 道体铸魂与分灵 domains/jingsheng/soul.py：soul_forgings 确认流（锚点变更 pending→confirmed 应用并签发新魂籍版本，确认前人物锚点不变）；分灵创建新人物（继承资料与谱系 lineage 链、不继承原身份，魂籍从 v1 起）
- 河图域 domains/hetu：persistent_worlds 境界 + world_entities/world_relations 境界作用域重建 + 世谱挂接；境界正史视图（scope=persistent_world 归真集合）；canonize 后置推进正史计数
- 三界分流：reality→息壤提取（不变）；persistent_world→境界实录+正史推进；simulation→只记试演实录；factual_records 增 scope 列——境界/幻境实录与真界本相隔离
- 正影打通：引文 target_type=memory 时被引记忆 superseded → 返回 successor_memory_id 提示，不静默替换
- 前端：人物详情页缘契面板（提议维度选择/铭契/撤回/事件史）+ 世界页重建（境界目录/实体/正史概览）+ covenants/worlds api 库
- 退役：旧 personality/drive/evolution/world 模块、服务、端点、仓储、schema、前端五页与组件样式；迁移 007 退役九张旧表与 characters.current_personality_version_id
- 验收（test_m6_domains 六用例）：多维无单一好感度/铭契版本链/事件不可抹除/撤回立即生效/边界即时/铸魂确认流+魂籍版本/分灵谱系/境界正史不进真界（实录 scope 隔离+真界候选=0）/引文正影后继
- 四套件：后端 379、前端 199、BFF 4、神识 5 包全绿（2 个预存环境失败不变）；迁移 007 净库+±1 干净

backend/app/domains/hetu/api.py

@@ -0,0 +1,108 @@
+"""河图世界 API（/worlds）：境界 CRUD、实体关系、正史视图。"""
+
+from fastapi import APIRouter, Depends, status
+from pydantic import BaseModel, Field
+
+from app.api.v1.deps import get_current_user
+from app.domains.hetu import service
+from app.schemas.auth import CurrentUser
+
+world_router = APIRouter(prefix="/worlds", tags=["hetu"])
+
+
+class CreateWorldRequest(BaseModel):
+    name: str = Field(min_length=1, max_length=120)
+    description: str = ""
+    rules: dict = Field(default_factory=dict)
+    lorebook_id: str | None = None
+
+
+class UpdateWorldRequest(BaseModel):
+    name: str | None = None
+    description: str | None = None
+    rules: dict | None = None
+    lorebook_id: str | None = None
+
+
+class EntityRequest(BaseModel):
+    kind: str = "concept"
+    name: str = Field(min_length=1, max_length=120)
+    description: str = ""
+    attrs: dict = Field(default_factory=dict)
+
+
+class RelationRequest(BaseModel):
+    source_entity_id: str
+    target_entity_id: str
+    relation: str = Field(min_length=1, max_length=80)
+    note: str = ""
+
+
+@world_router.post("", status_code=status.HTTP_201_CREATED)
+async def create_world(
+    payload: CreateWorldRequest, user: CurrentUser = Depends(get_current_user)
+) -> dict:
+    return await service.create_world(
+        owner_scope=user.owner_scope, name=payload.name, description=payload.description,
+        rules=payload.rules, lorebook_id=payload.lorebook_id,
+    )
+
+
+@world_router.get("")
+async def list_worlds(user: CurrentUser = Depends(get_current_user)) -> list[dict]:
+    return await service.list_worlds(user.owner_scope)
+
+
+@world_router.get("/{world_id}")
+async def get_world(world_id: str, user: CurrentUser = Depends(get_current_user)) -> dict:
+    return await service.get_world(world_id, user.owner_scope)
+
+
+@world_router.patch("/{world_id}")
+async def update_world(
+    world_id: str, payload: UpdateWorldRequest, user: CurrentUser = Depends(get_current_user)
+) -> dict:
+    return await service.update_world(
+        world_id, user.owner_scope, name=payload.name, description=payload.description,
+        rules=payload.rules, lorebook_id=payload.lorebook_id,
+    )
+
+
+@world_router.delete("/{world_id}")
+async def archive_world(world_id: str, user: CurrentUser = Depends(get_current_user)) -> dict:
+    return await service.archive_world(world_id, user.owner_scope)
+
+
+@world_router.post("/{world_id}/entities", status_code=status.HTTP_201_CREATED)
+async def add_entity(
+    world_id: str, payload: EntityRequest, user: CurrentUser = Depends(get_current_user)
+) -> dict:
+    return await service.add_entity(
+        world_id, user.owner_scope, kind=payload.kind, name=payload.name,
+        description=payload.description, attrs=payload.attrs,
+    )
+
+
+@world_router.get("/{world_id}/entities")
+async def list_entities(world_id: str, user: CurrentUser = Depends(get_current_user)) -> list[dict]:
+    return await service.list_entities(world_id, user.owner_scope)
+
+
+@world_router.post("/{world_id}/relations", status_code=status.HTTP_201_CREATED)
+async def add_relation(
+    world_id: str, payload: RelationRequest, user: CurrentUser = Depends(get_current_user)
+) -> dict:
+    return await service.add_relation(
+        world_id, user.owner_scope, source_entity_id=payload.source_entity_id,
+        target_entity_id=payload.target_entity_id, relation=payload.relation, note=payload.note,
+    )
+
+
+@world_router.get("/{world_id}/relations")
+async def list_relations(world_id: str, user: CurrentUser = Depends(get_current_user)) -> list[dict]:
+    return await service.list_relations(world_id, user.owner_scope)
+
+
+@world_router.get("/{world_id}/chronicle")
+async def world_chronicle(world_id: str, user: CurrentUser = Depends(get_current_user)) -> dict:
+    return await service.world_chronicle(world_id, user.owner_scope)