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/src/components/SectionCollapse.tsx

@@ -0,0 +1,39 @@
+'use client';
+import { useMarketOutlookSections, type SectionId } from '@/stores/market-outlook-sections-store';
+
+interface SectionCollapseProps {
+  id: SectionId;
+  title: string;
+  children: React.ReactNode;
+  info?: React.ReactNode;
+}
+
+export function SectionCollapse({ id, title, children, info }: SectionCollapseProps) {
+  const open = useMarketOutlookSections((s) => s.open[id]);
+  const toggle = useMarketOutlookSections((s) => s.toggle);
+
+  return (
+    <div>
+      <div
+        role="button"
+        tabIndex={0}
+        onClick={() => toggle(id)}
+        onKeyDown={(e) => { if (e.key === 'Enter' || e.key === ' ') { e.preventDefault(); toggle(id); } }}
+        className="flex items-center gap-2 w-full text-left group cursor-pointer"
+      >
+        <span className={`text-xs text-fg-muted transition-transform duration-200 ${open ? 'rotate-90' : ''}`}>
+          ▸
+        </span>
+        <h3 className="text-base font-semibold text-fg group-hover:text-accent transition-colors">
+          {title}
+        </h3>
+        {info && (
+          <span onClick={(e) => e.stopPropagation()} className="inline-flex">
+            {info}
+          </span>
+        )}
+      </div>
+      {open && <div className="animate-in fade-in duration-200 mt-4">{children}</div>}
+    </div>
+  );
+}