Fix merge conflicts and add withTransaction helper

- Add withTransaction helper that gracefully handles nested transactions
  (reuses existing transaction in tests, starts new one otherwise)
- Update auth procedures to use withTransaction instead of direct .transaction()
- Add email config to all e2e test contexts (required by merged code)
- Remove duplicate verification token code from signup procedure

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/api-server/src/procedures/auth/login-if-completed.ts

@@ -16,6 +16,7 @@
  *      e. Return { status: 'completed', redirectTo: '/dashboard' or '/auth/trust-device' }
  */
 
+import { withTransaction } from "@reviq/db";
 import {
   COOKIE_NAMES,
   COOKIE_OPTIONS,
@@ -90,9 +91,9 @@ export const loginIfRequestIsCompleted =
     const userAgent = getUserAgent(context.reqHeaders);
 
     // Create session in transaction (atomic: device upsert + session + login_request delete)
-    const { session, deviceTrusted } = await context.db
-      .transaction()
-      .execute(async (trx) => {
+    const { session, deviceTrusted } = await withTransaction(
+      context.db,
+      async (trx) => {
         // Upsert user device
         const deviceId = await upsertUserDevice(
           trx,