fix: fix several different data parsing issues

api/tmp-check-opp-schema.ts

@@ -0,0 +1,17 @@
+import { Client } from "pg";
+
+const url = process.env.DATABASE_URL ?? "postgresql://optima:123web123@localhost:5432/optima";
+const c = new Client(url);
+await c.connect();
+
+const r = await c.query(
+  "SELECT column_name, is_nullable, column_default FROM information_schema.columns WHERE table_name = 'Opportunity' ORDER BY ordinal_position"
+);
+
+console.log("Opportunity columns:");
+for (const row of r.rows) {
+  const nullable = row.is_nullable === "YES" ? "nullable" : "NOT NULL";
+  console.log(`  ${row.column_name}: ${nullable}${row.column_default ? ` (default: ${row.column_default})` : ""}`);
+}
+
+await c.end();