BREAKING CHANGE(stocks): Unify stock provider API to discriminated IStockDataRequest and add company name/fullname enrichment

ts/stocks/interfaces/provider.ts

@@ -1,16 +1,15 @@
-import type { IStockPrice, IStockQuoteRequest, IStockBatchQuoteRequest } from './stockprice.js';
+import type { IStockPrice, IStockDataRequest } from './stockprice.js';
 
 export interface IStockProvider {
   name: string;
   priority: number;
-  
-  fetchPrice(request: IStockQuoteRequest): Promise<IStockPrice>;
-  fetchPrices(request: IStockBatchQuoteRequest): Promise<IStockPrice[]>;
+
+  fetchData(request: IStockDataRequest): Promise<IStockPrice | IStockPrice[]>;
   isAvailable(): Promise<boolean>;
-  
+
   supportsMarket?(market: string): boolean;
   supportsTicker?(ticker: string): boolean;
-  
+
   readonly requiresAuth: boolean;
   readonly rateLimit?: {
     requestsPerMinute: number;