phase-7_alpha: legacy code cleanup

server/controllers/finance.controller.ts

@@ -10,6 +10,7 @@ export class FinanceController {
   constructor(
     private readonly engine: ScreenerEngine,
     private readonly repo: PortfolioRepository,
+    private readonly advisor: PortfolioAdvisor,
   ) {}
 
   private static normalizeYahoo(ticker: string): string {
@@ -44,7 +45,7 @@ export class FinanceController {
         ? await this.engine.screenTickers(screenable)
         : { STOCK: [], ETF: [], BOND: [], ERROR: [], marketContext: {} as any };
 
-    const advice = await new PortfolioAdvisor().advise(holdings, results);
+    const advice = await this.advisor.advise(holdings, results);
     return { advice, personalFinance, marketContext: results.marketContext };
   }