feat: deal tags

models/project.py

@@ -6,7 +6,7 @@ from models.base import BaseModel
 from models.mixins import SoftDeleteMixin, CreatedAtMixin, IdMixin
 
 if TYPE_CHECKING:
-    from models import Board, BuiltInModule
+    from models import Board, BuiltInModule, DealTag
 
 
 class Project(BaseModel, IdMixin, SoftDeleteMixin, CreatedAtMixin):
@@ -25,3 +25,10 @@ class Project(BaseModel, IdMixin, SoftDeleteMixin, CreatedAtMixin):
         lazy="selectin",
         order_by="asc(BuiltInModule.id)",
     )
+
+    tags: Mapped[list["DealTag"]] = relationship(
+        back_populates="project",
+        primaryjoin="and_(Project.id == DealTag.project_id, DealTag.is_deleted == False)",
+        order_by="asc(DealTag.id)",
+        lazy="selectin",
+    )