update our alpaca calls to be separate bid and ask

src/trading.test.ts

@@ -8,7 +8,9 @@ function mockAlpaca(overrides: Partial<Alpaca> = {}): Alpaca {
         getAssets: vi.fn(),
         getAsset: vi.fn(),
         getClock: vi.fn(),
-        getLatestQuote: vi.fn(),
+        getLatestAsk: vi.fn(),
+        getLatestBid: vi.fn(),
+        getLatestSpread: vi.fn(),
         getLatestTrades: vi.fn(),
         ...overrides,
     } as unknown as Alpaca;