novas funcionalidades dos formulario

app/Http/Controllers/Api/V1/InterestRequestController.php

@@ -2,13 +2,16 @@
 
 namespace App\Http\Controllers\Api\V1;
 
+use App\Domain\Interests\Enums\InterestStatus;
 use App\Http\Controllers\Controller;
 use App\Http\Requests\StoreInterestRequestRequest;
 use App\Jobs\NotifyInterestReceived;
+use App\Models\ExistingBusiness;
 use App\Models\InterestRequest;
 use App\Models\Opportunity;
 use App\Services\IdempotencyConflict;
 use App\Services\InterestSubmission;
+use Illuminate\Database\QueryException;
 use Illuminate\Http\JsonResponse;
 use Illuminate\Support\Facades\Log;
 use Illuminate\Support\Facades\Queue;
@@ -33,8 +36,17 @@ class InterestRequestController extends Controller
                     throw ValidationException::withMessages(['opportunityReference' => 'A oportunidade seleccionada já não está disponível.']);
                 }
 
+                $business = ! empty($validated['existingBusinessId'])
+                    ? ExistingBusiness::published()->whereKey($validated['existingBusinessId'])->first()
+                    : null;
+                if (! empty($validated['existingBusinessId']) && ! $business) {
+                    throw ValidationException::withMessages(['existingBusinessId' => 'A oportunidade seleccionada já não está disponível.']);
+                }
+
                 $interest = InterestRequest::create([
                     'opportunity_id' => $opportunity?->id,
+                    'existing_business_id' => $business?->id,
+                    'modality' => $business ? $validated['modality'] : null,
                     'reference' => $this->generateReference(),
                     'full_name' => trim($validated['fullName']),
                     'email' => strtolower(trim($validated['email'])),
@@ -47,7 +59,7 @@ class InterestRequestController extends Controller
                     'message' => trim($validated['message']),
                     'privacy_consent' => (bool) $validated['privacyConsent'],
                     'consented_at' => now(),
-                    'status' => 'received',
+                    'status' => InterestStatus::Received->value,
                     'source_page' => Str::limit($request->headers->get('referer', ''), 255, ''),
                     'ip_address' => $request->ip(),
                     'user_agent' => $request->userAgent(),
@@ -78,6 +90,12 @@ class InterestRequestController extends Controller
         } catch (IdempotencyConflict) {
             return response()->json(['success' => false, 'message' => 'A chave de envio já foi usada com dados diferentes.'], 409);
         } catch (ValidationException $exception) {
+            throw $exception;
+        } catch (QueryException $exception) {
+            if ($exception->getCode() === '23505') {
+                return response()->json(['success' => false, 'message' => 'Já existe uma manifestação activa para esta oportunidade e modalidade.'], 409);
+            }
+
             throw $exception;
         } catch (\Throwable $exception) {
             Log::error('Erro ao registar manifestação de interesse', [