feat(01-01): define DB schema, configure Drizzle Kit, write seed script

- Created src/lib/db/schema.ts with users table (id, email, password_hash, created_at)
- Created src/lib/db/index.ts exporting db singleton via Drizzle + Neon HTTP driver
- Created drizzle.config.ts pointing to schema.ts with postgresql dialect
- Created scripts/seed.ts reading AGENT_EMAIL/AGENT_PASSWORD to create hashed user row
- Generated drizzle/0000_milky_black_cat.sql migration (committed per user decision)
- db:migrate and db:seed pending user Neon database setup

teressa-copeland-homes/scripts/seed.ts

@@ -0,0 +1,29 @@
+import "dotenv/config";
+import { drizzle } from "drizzle-orm/neon-http";
+import { neon } from "@neondatabase/serverless";
+import { users } from "../src/lib/db/schema";
+import bcrypt from "bcryptjs";
+
+const sql = neon(process.env.DATABASE_URL!);
+const db = drizzle({ client: sql });
+
+async function seed() {
+  const email = process.env.AGENT_EMAIL;
+  const password = process.env.AGENT_PASSWORD;
+
+  if (!email || !password) {
+    throw new Error("AGENT_EMAIL and AGENT_PASSWORD env vars are required");
+  }
+
+  const passwordHash = await bcrypt.hash(password, 12);
+
+  await db.insert(users).values({ email, passwordHash }).onConflictDoNothing();
+
+  console.log(`Seeded agent account: ${email}`);
+  process.exit(0);
+}
+
+seed().catch((err) => {
+  console.error(err);
+  process.exit(1);
+});