flatten app to repo root and update docker deployment for single-stack runtime

lib/server/prices.ts

@@ -0,0 +1,44 @@
+const YAHOO_BASE = 'https://query1.finance.yahoo.com/v8/finance/chart';
+
+function fallbackQuote(ticker: string) {
+  const normalized = ticker.trim().toUpperCase();
+  let hash = 0;
+
+  for (const char of normalized) {
+    hash = (hash * 31 + char.charCodeAt(0)) % 100000;
+  }
+
+  return 40 + (hash % 360) + ((hash % 100) / 100);
+}
+
+export async function getQuote(ticker: string): Promise<number> {
+  const normalizedTicker = ticker.trim().toUpperCase();
+
+  try {
+    const response = await fetch(`${YAHOO_BASE}/${normalizedTicker}?interval=1d&range=1d`, {
+      headers: {
+        'User-Agent': 'Mozilla/5.0 (compatible; FiscalClone/3.0)'
+      },
+      cache: 'no-store'
+    });
+
+    if (!response.ok) {
+      return fallbackQuote(normalizedTicker);
+    }
+
+    const payload = await response.json() as {
+      chart?: {
+        result?: Array<{ meta?: { regularMarketPrice?: number } }>;
+      };
+    };
+
+    const price = payload.chart?.result?.[0]?.meta?.regularMarketPrice;
+    if (typeof price !== 'number' || !Number.isFinite(price)) {
+      return fallbackQuote(normalizedTicker);
+    }
+
+    return price;
+  } catch {
+    return fallbackQuote(normalizedTicker);
+  }
+}