phase-8:server code enhancements.

server/models/Stock.ts

@@ -9,12 +9,12 @@ export class Stock extends Asset {
 
   constructor(data: StockData) {
     super(data);
-    this.sector = this._mapToStandardSector(data);
+    this.sector = this.mapToStandardSector(data);
 
     this.metrics = {
       sector: this.sector,
-      capCategory: this._classifyMarketCap(data.marketCap ?? null),
-      growthCategory: this._classifyGrowth(
+      capCategory: this.classifyMarketCap(data.marketCap ?? null),
+      growthCategory: this.classifyGrowth(
         data.revenueGrowth ?? null,
         data.earningsGrowth ?? null,
         data.dividendYield ?? null,
@@ -52,7 +52,7 @@ export class Stock extends Asset {
 
   // ── Market cap tier classification ──────────────────────────────────────
   // Thresholds follow MSCI/Russell institutional convention.
-  _classifyMarketCap(marketCap: number | null): CapCategory {
+  classifyMarketCap(marketCap: number | null): CapCategory {
     if (marketCap == null) return CAP_CATEGORY.LARGE; // safe default
     if (marketCap >= 200e9) return CAP_CATEGORY.MEGA;
     if (marketCap >= 10e9) return CAP_CATEGORY.LARGE;
@@ -64,7 +64,7 @@ export class Stock extends Asset {
   // ── Growth / style classification ───────────────────────────────────────
   // revenueGrowth and earningsGrowth are in percentage form (e.g. 15 = 15%).
   // dividendYield is also in percentage form (e.g. 3.5 = 3.5%).
-  _classifyGrowth(
+  classifyGrowth(
     revenueGrowth: number | null,
     earningsGrowth: number | null,
     dividendYield: number | null,
@@ -81,7 +81,7 @@ export class Stock extends Asset {
     return GROWTH_CATEGORY.STABLE;
   }
 
-  _mapToStandardSector(data: StockData): Sector {
+  mapToStandardSector(data: StockData): Sector {
     const profile = data.assetProfile ?? {};
     const industry = (profile.industry || '').toLowerCase();
     const sector = (profile.sector || '').toLowerCase();