Add groupManager;

reduce cardmanager to creating and deleting for now;
fix typo

app/model/models.py

@@ -33,7 +33,10 @@ class AaGroupLink(Base, table=True):
 
 #### Group
 class GroupBase(Base):
-    name: str = Field(index=True)
+    name: str = Field(index=True, unique=True)
+
+class GroupCreate(GroupBase):
+    pass
 
 class GroupDB(GroupBase, table=True):
     id: int | None = Field(default=None, primary_key=True)
@@ -42,8 +45,8 @@ class GroupDB(GroupBase, table=True):
 
 class GroupResponse(GroupBase):
     id: int
-    cards: List["Card"]
-    accessauths: List["AccessAuthorizationDB"]
+    cards: List["Card"] | None
+    accessauths: List["AccessAuthorizationDB"] | None
 
 #### AccessAuthorization
 class AccessAuthorizationBase(Base):