fix: backfill symbol_demand for sidebar-added symbols + analyst ratings schema fix

- Add await ctx.cache.subscribe() to addSymbol mutation so symbols
  added via the sidebar get registered in symbol_demand and yfinance
  jobs are queued immediately
- Backfill PEP, WYNN, STZ, CELH into symbol_demand + adapter_queue
- Upgrade yahoo-finance2 3.15.3 -> 3.15.4 and pass validateResult:false
  to quoteSummary() to handle Yahoo schema drift
- Add error detail logging for analyst ratings schema failures
- Update .gitignore with common ignores

app/server/src/adapters/yfinance-adjustments.ts

@@ -56,7 +56,7 @@ function emitFrom(
 
   const entries: Record<string, unknown>[] = Array.isArray(source)
     ? (source as Record<string, unknown>[])
-    : Object.values(source as Record<string, unknown>);
+    : (Object.values(source as Record<string, unknown>) as Record<string, unknown>[]);
 
   for (const entry of entries) {
     if (!entry || typeof entry !== "object") continue;