feat: add household Pydantic schemas

app/models/schemas/household.py

@@ -0,0 +1,44 @@
+"""Pydantic schemas for household management endpoints."""
+from __future__ import annotations
+
+from typing import Optional
+from pydantic import BaseModel
+
+
+class HouseholdCreateResponse(BaseModel):
+    household_id: str
+    message: str
+
+
+class HouseholdMember(BaseModel):
+    user_id: str
+    joined_at: str
+    is_owner: bool
+
+
+class HouseholdStatusResponse(BaseModel):
+    in_household: bool
+    household_id: Optional[str] = None
+    is_owner: bool = False
+    members: list[HouseholdMember] = []
+    max_seats: int = 4
+
+
+class HouseholdInviteResponse(BaseModel):
+    invite_url: str
+    token: str
+    expires_at: str
+
+
+class HouseholdAcceptRequest(BaseModel):
+    household_id: str
+    token: str
+
+
+class HouseholdAcceptResponse(BaseModel):
+    message: str
+    household_id: str
+
+
+class HouseholdRemoveMemberRequest(BaseModel):
+    user_id: str