feat(backend): add fastify api, auth, prisma schema and jobs

apps/backend/scripts/hash-password.ts

@@ -0,0 +1,27 @@
+// Local CLI helper — produces a bcrypt hash for an env USER*_PASSWORD_HASH value.
+// Usage:
+//   pnpm hash-password "mySuperSecret"
+//
+// The plain password is only present in argv/RAM during this invocation.
+// It is NOT logged anywhere; only the hash is printed to stdout. Copy it into .env.
+
+import { hashPassword } from '../src/utils/password.js';
+
+async function main(): Promise<void> {
+  const raw = process.argv.slice(2).join(' ').trim();
+  if (!raw) {
+    // eslint-disable-next-line no-console
+    console.error('Usage: pnpm hash-password "<password>"');
+    process.exit(1);
+  }
+  if (raw.length < 8) {
+    // eslint-disable-next-line no-console
+    console.error('Password must be at least 8 characters.');
+    process.exit(1);
+  }
+  const hash = await hashPassword(raw);
+  // Print ONLY the hash, nothing else, so it is trivial to redirect/copy.
+  process.stdout.write(hash + '\n');
+}
+
+void main();