Backend overhaul: new models, routers, schemas for shifts, business day, flags, messages, settings

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

local_backend/schemas/shift.py

@@ -0,0 +1,38 @@
+from pydantic import BaseModel
+from typing import Optional, List
+from schemas.base import UTCDatetime
+
+
+class ShiftBreakOut(BaseModel):
+    id: int
+    shift_id: int
+    started_at: UTCDatetime
+    ended_at: Optional[UTCDatetime] = None
+
+    model_config = {"from_attributes": True}
+
+
+class WaiterShiftOut(BaseModel):
+    id: int
+    waiter_id: int
+    waiter_name: Optional[str] = None
+    business_day_id: int
+    started_at: UTCDatetime
+    ended_at: Optional[UTCDatetime] = None
+    starting_cash: Optional[float] = None
+    total_collected: Optional[float] = None
+    net_to_deliver: Optional[float] = None
+    is_active: bool = True
+    notes: Optional[str] = None
+    breaks: List[ShiftBreakOut] = []
+
+    model_config = {"from_attributes": True}
+
+
+class StartShiftRequest(BaseModel):
+    starting_cash: Optional[float] = None
+    waiter_id: Optional[int] = None  # manager use: start shift for a specific waiter
+
+
+class EndShiftRequest(BaseModel):
+    notes: Optional[str] = None