phase-7: code restructure

server/reporters/FinanceReporter.ts

@@ -1,6 +1,6 @@
 import fs from 'fs';
 import path from 'path';
-import type { MarketContext } from '../types.js';
+import type { MarketContext } from '../types';
 
 export class FinanceReporter {
   render(advice: unknown[], personalFinance: unknown, marketContext: MarketContext): string {

server/reporters/HtmlReporter.ts

@@ -1,6 +1,6 @@
 import fs from 'fs';
 import path from 'path';
-import type { MarketContext } from '../types.js';
+import type { MarketContext } from '../types';
 
 // Generates a self-contained HTML report saved to ./screener-report.html
 // Console output shows only the signal summary — full breakdown lives here.
@@ -204,7 +204,7 @@ export class HtmlReporter {
   }
 
   // Collect only headers that have at least one non-null value across all items
-  _headers(type, items, mode) {
+  _headers(type, items, _mode) {
     const base = ['Ticker', 'Price', 'Verdict', 'Score'];
     if (type === 'STOCK') {
       const metricKeys = [