fix(auth): sincroniza User e AuthUser com mesmo ID

- Aceitar convite: cria User com mesmo ID do AuthUser
- Criar usuario admin: usa ID do AuthUser no upsert do User
- Garante sincronismo entre tabelas de auth e dominio

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

src/app/api/admin/users/route.ts

@@ -204,7 +204,7 @@ export async function POST(request: Request) {
     })
 
     const createdDomainUser = await tx.user.upsert({
-      where: { email },
+      where: { id: createdAuthUser.id },
       update: {
         name,
         role: userRole,
@@ -213,6 +213,7 @@ export async function POST(request: Request) {
         managerId: managerRecord?.id ?? null,
       },
       create: {
+        id: createdAuthUser.id,
         name,
         email,
         role: userRole,