feat: add stock database with prisma for portfolio persistence

- Initialize Prisma with SQLite and Stock model
- Create database service layer with singleton client
- Add API routes for stock CRUD operations
- Integrate database with analyze page to persist ticker entries
- Add Playwright tests for stock database functionality

app/routes.ts

@@ -3,6 +3,11 @@ import { type RouteConfig, index, route } from "@react-router/dev/routes";
 export default [
   index("routes/landing.tsx"),
   route("api/alpaca/account", "routes/api/alpaca/account.ts"),
+  route("api/alpaca/quote/:ticker", "routes/api/alpaca/quote.ts"),
+  route("api/alpaca/positions", "routes/api/alpaca/positions.ts"),
+  route("api/indicators", "routes/api/indicators.ts"),
+  route("api/analyze", "routes/api/analyze.ts"),
+  route("api/stocks", "routes/api/stocks/index.ts"),
   route("stocks", "routes/stocks.tsx"),
   route("analyze", "routes/analyze.tsx"),
 ] satisfies RouteConfig;