feat: Enhance transaction model and dashboard with Azure OAuth integration

app/api/transactions.py

@@ -13,7 +13,9 @@ from app.service.recon_service import (
 router = APIRouter(prefix="/api", tags=["Transactions"])
 
 
-@router.get("/transactions", response_model=list[Transaction], summary="List transactions")
+@router.get(
+    "/transactions", response_model=list[Transaction], summary="List transactions"
+)
 async def list_transactions_endpoint(
     status: StatusType | None = Query(None, description="Filter by status"),
     flag: FlagType | None = Query(None, description="Filter by flag"),
@@ -21,7 +23,11 @@ async def list_transactions_endpoint(
     return list_transactions(status=status, flag=flag)
 
 
-@router.get("/transactions/{transaction_id}", response_model=Transaction, summary="Get a transaction")
+@router.get(
+    "/transactions/{transaction_id}",
+    response_model=Transaction,
+    summary="Get a transaction",
+)
 async def get_transaction_endpoint(transaction_id: str) -> Transaction:
     transaction = get_transaction_by_id(transaction_id)
     if transaction is None:
@@ -29,15 +35,24 @@ async def get_transaction_endpoint(transaction_id: str) -> Transaction:
     return transaction
 
 
-@router.post("/transactions", response_model=Transaction, status_code=201, summary="Submit a transaction")
+@router.post(
+    "/transactions",
+    response_model=Transaction,
+    status_code=201,
+    summary="Submit a transaction",
+)
 async def create_transaction_endpoint(transaction: Transaction) -> Transaction:
     created = add_transaction(transaction)
     if not created:
-        raise HTTPException(status_code=409, detail=f"{transaction.transaction_id} already exists")
+        raise HTTPException(
+            status_code=409, detail=f"{transaction.transaction_id} already exists"
+        )
     return transaction
 
 
-@router.delete("/transactions/{transaction_id}", status_code=204, summary="Delete a transaction")
+@router.delete(
+    "/transactions/{transaction_id}", status_code=204, summary="Delete a transaction"
+)
 async def delete_transaction_endpoint(transaction_id: str) -> None:
     removed = delete_transaction_by_id(transaction_id)
     if not removed: