Improve logging for Yahoo Finance errors and add debug script

lib/munger-engine.ts

@@ -74,7 +74,7 @@ export class MungerEngine {
             try {
                 summary = await yahooFinance.quoteSummary(symbol, { modules: ['financialData', 'summaryDetail', 'price'] });
             } catch (e) {
-                console.warn(`Failed to fetch summary for ${symbol}`);
+                console.warn(`Failed to fetch summary for ${symbol}: ${(e as Error).message}`);
                 return null;
             }
 

scripts/debug_summary.ts

@@ -0,0 +1,21 @@
+import YahooFinance from 'yahoo-finance2';
+const yahooFinance = new (YahooFinance as any)({});
+
+async function test() {
+    console.log("Testing yahooFinance.quoteSummary for 'AAPL'...");
+    try {
+        const result = await yahooFinance.quoteSummary('AAPL', { modules: ['financialData', 'summaryDetail', 'price'] });
+        console.log("Success!");
+        console.log("FinancialData:", result.financialData ? "Found" : "Missing");
+        console.log("SummaryDetail:", result.summaryDetail ? "Found" : "Missing");
+        console.log("Price:", result.price ? "Found" : "Missing");
+    } catch (e: any) {
+        console.error("FAILED:");
+        console.error(e.message);
+        if (e.errors) {
+            console.error(JSON.stringify(e.errors, null, 2));
+        }
+    }
+}
+
+test();