feat: 战略地图多租户隔离 — 酣客/博海地图按企业显示

- strategic_maps/map_objectives 加 entity_id 列+模型+回填(按标题: 酣客→1/博海→2)
- maps: list按企业过滤, create/create-with-template强制token企业, update/delete/batch-delete/connections/review 跨企业404
- objectives/versions: 按map归属过滤
- _sync_map_objectives 继承地图entity
- 实证: 酣客token→map32(酣客), 博海token→map49(博海), 跨企业读404
- pytest 482 passed
- 多租户隔离专项最终收官(含周报遗留项)

backend/app/models/__init__.py

@@ -48,6 +48,7 @@ class StrategicMap(Base):
     """战略地图"""
     __tablename__ = "strategic_maps"
     id = Column(Integer, primary_key=True, index=True)
+    entity_id = Column(Integer, default=1, comment="企业ID (多租户隔离 2026-08-25)")
     title = Column(String(200), nullable=False, comment="地图名称")
     version = Column(String(20), default="v1.0", comment="版本号")
     status = Column(String(20), default="draft", comment="draft/published")
@@ -271,6 +272,7 @@ class MapObjective(Base):
     """战略地图目标: 每个维度下的具体目标"""
     __tablename__ = "map_objectives"
     id = Column(Integer, primary_key=True, index=True)
+    entity_id = Column(Integer, default=1, comment="企业ID (多租户隔离 2026-08-25)")
     map_id = Column(Integer, ForeignKey("strategic_maps.id", ondelete="CASCADE"), nullable=False, comment="关联地图")
     dimension_key = Column(String(50), nullable=False, comment="所属维度: finance/customer/process/learning")
     name = Column(String(200), nullable=False, comment="目标名称")