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/queue-cifr.ts

@@ -0,0 +1,6 @@
+import { createDatabase } from './src/db.ts';
+import { queueSecFetch } from './src/admin/admin.ts';
+
+const db = createDatabase();
+queueSecFetch(db, 'CIFR');
+console.log('Queued CIFR sec-fetch');