Fix: Correcciones panel admin y API frontend

## Panel de Administración

### FormBuilder personalizado (Laravel 11)
- Creado app/Support/FormBuilder.php como reemplazo de laravelcollective/html
- Creado app/Support/Facades/Form.php para el facade
- Registrado en AppServiceProvider y config/app.php
- Soporta: text, email, password, file, textarea, select, checkbox, radio, etc.
- Manejo de valores null en todos los parámetros

### Configuración de sesión
- Cambiado same_site de "none" a "lax" para compatibilidad HTTP
- Corrige error 419 Page Expired en login

### Status CRUD
- Agregado campo en_name al formulario (español/inglés)
- Actualizado StatusController create/update para manejar en_name

### Dependencias
- Instalado spatie/laravel-google-cloud-storage para driver GCS

## API Frontend

### Validaciones de perfil de proveedor
Agregadas validaciones en endpoints que requieren perfil de proveedor:

- SupplierController::getpostulation - Retorna error 400 si no hay perfil
- SupplierController::getcontractedpostulation - Retorna error 400 si no hay perfil
- PostulationController::postulate - Retorna error 400 si no hay perfil
- PostulationController::getfinishedpostulations - Retorna error 400 si no hay perfil
- ContractController::startcontract - Retorna error 400 si no hay perfil

### Null safety en contratos
- ContractController::getcurrentcontracts - Manejo seguro de supplier/category null
- ContractController::getfinishedcontracts - Manejo seguro de supplier/category/status null

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

app/Http/Controllers/ContractController.php

@@ -639,12 +639,12 @@ class ContractController extends Controller
           $day_limit = Carbon::parse($ccontract->created_at);
           $currentcontractinfo = array(
             'id' => $ccontract->id,
-            'phone' => $supplier->user->phone,
-            'category' => $category->name,
-            'en_category' => $category->en_name,
+            'phone' => $supplier ? ($supplier->user ? $supplier->user->phone : null) : null,
+            'category' => $category ? $category->name : null,
+            'en_category' => $category ? $category->en_name : null,
             'address' => $ccontract->address,
             'date' => $ccontract->appointment,
-            'supplier' => $supplier->company_name,
+            'supplier' => $supplier ? $supplier->company_name : 'Proveedor no disponible',
             'status' => $ccontract->status_id,
             'amount' => $ccontract->amount,
             'code' => $ccontract->code,
@@ -778,6 +778,14 @@ class ContractController extends Controller
 
         $user = Auth::user();
         $supplier = $user->suppliers;
+
+        if (!$supplier) {
+          return response()->json([
+            'success' => false,
+            'message' => 'No tienes un perfil de proveedor registrado'
+          ], 400);
+        }
+
         $ccontract = CurrentContracts::where('code', $request->contract_pin)->where('supplier_id', $supplier->id)->first();
 
         if($ccontract) {
@@ -969,16 +977,16 @@ class ContractController extends Controller
           $day_limit = Carbon::parse($fcontract->created_at);
           $finishedcontractinfo = array(
             'id' => $fcontract->id,
-            'category' => $category->name,
-            'en_category' => $category->en_name,
+            'category' => $category ? $category->name : null,
+            'en_category' => $category ? $category->en_name : null,
             'address' => $fcontract->address,
             'date' => $fcontract->appointment,
             'date_difference' => $time_limit->diff(Carbon::now(), false)->days,
-            'supplier' => $supplier->company_name,
+            'supplier' => $supplier ? $supplier->company_name : 'Proveedor no disponible',
             'amount' => $fcontract->amount,
             'scored' => $fcontract->scored_at,
             'parent' => $fcontract->parent_contract_id,
-            'status' => $fcontract->status->name
+            'status' => $fcontract->status ? $fcontract->status->name : null
           );
           $finishedcontracts[] = $finishedcontractinfo;
         }

app/Http/Controllers/PostulationController.php

@@ -218,6 +218,13 @@ class PostulationController extends Controller
         $time_limit = (9900 - Carbon::now()->diffInMinutes($time_created));
         $supplier = Suppliers::where('user_id', $user->id)->first();
 
+        if (!$supplier) {
+          return response()->json([
+            'success' => false,
+            'message' => 'No tienes un perfil de proveedor registrado'
+          ], 400);
+        }
+
         if ($time_limit > 0) {
           if (in_array($postulation->category_id, $supplier->categories->pluck('id')->toArray())) {
             /*if($supplier->membership == 1) {
@@ -282,6 +289,14 @@ class PostulationController extends Controller
 
     public function getfinishedpostulations(Request $request) {
       $user = Auth::user();
+
+      if (!$user->suppliers) {
+        return response()->json([
+          'success' => false,
+          'message' => 'No tienes un perfil de proveedor registrado'
+        ], 400);
+      }
+
       $postulations = FinishedContracts::where('supplier_id', $user->suppliers->id)->orderBy('created_at', 'DESC')->get();
       $finishedpostulations  = array();
 

app/Http/Controllers/StatusController.php

@@ -53,10 +53,12 @@ class StatusController extends Controller
 
         $rules = [
           'name' => 'required|string',
+          'en_name' => 'required|string',
         ];
 
         $messages = [
           'name.required' => 'Se requiere el nombre del status',
+          'en_name.required' => 'Se requiere el nombre del status en inglés',
         ];
 
         $validator = Validator::make($request->all(), $rules, $messages);
@@ -66,6 +68,7 @@ class StatusController extends Controller
 
         $status = new Status();
         $status->name = strip_tags($request->name);
+        $status->en_name = strip_tags($request->en_name);
         $status->save();
 
         return redirect('status');
@@ -119,10 +122,12 @@ class StatusController extends Controller
 
         $rules = [
           'name' => 'required|string',
+          'en_name' => 'required|string',
         ];
 
         $messages = [
           'name.required' => 'Se requiere el nombre del status',
+          'en_name.required' => 'Se requiere el nombre del status en inglés',
         ];
 
         $validator = Validator::make($request->all(), $rules, $messages);
@@ -132,6 +137,7 @@ class StatusController extends Controller
 
         $status = Status::find($id);
         $status->name = strip_tags($request->name);
+        $status->en_name = strip_tags($request->en_name);
         $status->save();
 
         return redirect('status');

app/Http/Controllers/SupplierController.php

@@ -1211,6 +1211,14 @@ class SupplierController extends Controller
 
       $user = Auth::user();
       $supplier = Suppliers::where('user_id', $user->id)->first();
+
+      if (!$supplier) {
+        return response()->json([
+          'success' => false,
+          'message' => 'No tienes un perfil de proveedor registrado'
+        ], 400);
+      }
+
       $distance = 0.5;
       $postulations = Postulations::distance('location', $supplier->location, $distance)->orderBy('created_at', 'DESC')->get();
 
@@ -1246,6 +1254,14 @@ class SupplierController extends Controller
 
       $user = Auth::user();
       $supplier = Suppliers::where('user_id', $user->id)->first();
+
+      if (!$supplier) {
+        return response()->json([
+          'success' => false,
+          'message' => 'No tienes un perfil de proveedor registrado'
+        ], 400);
+      }
+
       $contracts = CurrentContracts::where('supplier_id', $supplier->id)->orderBy('created_at', 'DESC')->get();
 
       $contractsinfo = array();

app/Providers/AppServiceProvider.php

@@ -3,6 +3,7 @@
 namespace App\Providers;
 
 use App\Services\SocialUserResolver;
+use App\Support\FormBuilder;
 use Coderello\SocialGrant\Resolvers\SocialUserResolverInterface;
 use Illuminate\Support\ServiceProvider;
 use Illuminate\Support\Facades\Schema;
@@ -25,7 +26,9 @@ class AppServiceProvider extends ServiceProvider
      */
     public function register()
     {
-        //
+        $this->app->singleton('form', function ($app) {
+            return new FormBuilder();
+        });
     }
 
     /**

app/Support/Facades/Form.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Support\Facades;
+
+use Illuminate\Support\Facades\Facade;
+
+class Form extends Facade
+{
+    protected static function getFacadeAccessor()
+    {
+        return 'form';
+    }
+}

app/Support/FormBuilder.php

@@ -0,0 +1,265 @@
+<?php
+
+namespace App\Support;
+
+use Illuminate\Support\HtmlString;
+
+class FormBuilder
+{
+    protected $model;
+
+    public function model($model, $options = [])
+    {
+        $this->model = $model;
+        return $this->open($options ?? []);
+    }
+
+    public function open($options = [])
+    {
+        $options = $options ?? [];
+        $method = strtoupper($options['method'] ?? 'POST');
+        $action = $options['url'] ?? ($options['action'] ?? '');
+        $files = isset($options['files']) && $options['files'] ? ' enctype="multipart/form-data"' : '';
+        $class = isset($options['class']) ? ' class="' . e($options['class']) . '"' : '';
+        $id = isset($options['id']) ? ' id="' . e($options['id']) . '"' : '';
+
+        $html = '<form method="' . ($method === 'GET' ? 'GET' : 'POST') . '" action="' . e($action) . '"' . $files . $class . $id . '>';
+        $html .= csrf_field();
+
+        if (!in_array($method, ['GET', 'POST'])) {
+            $html .= method_field($method);
+        }
+
+        return new HtmlString($html);
+    }
+
+    public function close()
+    {
+        $this->model = null;
+        return new HtmlString('</form>');
+    }
+
+    public function token()
+    {
+        return csrf_field();
+    }
+
+    public function label($name, $value = null, $options = [], $escapeHtml = true)
+    {
+        $options = $options ?? [];
+        $value = $value ?? ucfirst(str_replace('_', ' ', $name));
+        $for = ' for="' . e($name) . '"';
+        $attributes = $this->attributes($options);
+
+        return new HtmlString('<label' . $for . $attributes . '>' . ($escapeHtml ? e($value) : $value) . '</label>');
+    }
+
+    public function text($name, $value = null, $options = [])
+    {
+        return $this->input('text', $name, $value, $options ?? []);
+    }
+
+    public function email($name, $value = null, $options = [])
+    {
+        return $this->input('email', $name, $value, $options ?? []);
+    }
+
+    public function password($name, $options = [])
+    {
+        return $this->input('password', $name, null, $options ?? []);
+    }
+
+    public function hidden($name, $value = null, $options = [])
+    {
+        return $this->input('hidden', $name, $value, $options ?? []);
+    }
+
+    public function number($name, $value = null, $options = [])
+    {
+        return $this->input('number', $name, $value, $options ?? []);
+    }
+
+    public function file($name, $options = [])
+    {
+        return $this->input('file', $name, null, $options ?? []);
+    }
+
+    public function textarea($name, $value = null, $options = [])
+    {
+        $options = $options ?? [];
+        $value = $this->getValueAttribute($name, $value);
+        $attributes = $this->attributes(array_merge(['name' => $name, 'id' => $name], $options));
+
+        return new HtmlString('<textarea' . $attributes . '>' . e($value ?? '') . '</textarea>');
+    }
+
+    public function select($name, $list = [], $selected = null, $options = [], $optionsAttributes = [], $optgroupsAttributes = [])
+    {
+        $options = $options ?? [];
+        $list = $list ?? [];
+        $selected = $this->getValueAttribute($name, $selected);
+        $attributes = $this->attributes(array_merge(['name' => $name, 'id' => $name], $options));
+
+        $html = '<select' . $attributes . '>';
+
+        foreach ($list as $key => $value) {
+            if (is_array($value)) {
+                $html .= '<optgroup label="' . e($key) . '">';
+                foreach ($value as $optKey => $optValue) {
+                    $html .= $this->option($optKey, $optValue, $selected);
+                }
+                $html .= '</optgroup>';
+            } else {
+                $html .= $this->option($key, $value, $selected);
+            }
+        }
+
+        $html .= '</select>';
+
+        return new HtmlString($html);
+    }
+
+    protected function option($key, $value, $selected)
+    {
+        $isSelected = $this->isSelected($key, $selected) ? ' selected' : '';
+        return '<option value="' . e($key) . '"' . $isSelected . '>' . e($value) . '</option>';
+    }
+
+    protected function isSelected($key, $selected)
+    {
+        if (is_array($selected)) {
+            return in_array($key, $selected);
+        }
+        return (string) $key === (string) $selected;
+    }
+
+    public function checkbox($name, $value = 1, $checked = null, $options = [])
+    {
+        $options = $options ?? [];
+        $checked = $this->getCheckedState($name, $value, $checked) ? ' checked' : '';
+        $attributes = $this->attributes(array_merge([
+            'name' => $name,
+            'id' => $options['id'] ?? $name,
+            'value' => $value,
+            'type' => 'checkbox'
+        ], $options));
+
+        return new HtmlString('<input' . $attributes . $checked . '>');
+    }
+
+    public function radio($name, $value = null, $checked = null, $options = [])
+    {
+        $options = $options ?? [];
+        $checked = $this->getCheckedState($name, $value, $checked) ? ' checked' : '';
+        $attributes = $this->attributes(array_merge([
+            'name' => $name,
+            'id' => $options['id'] ?? $name . '_' . $value,
+            'value' => $value,
+            'type' => 'radio'
+        ], $options));
+
+        return new HtmlString('<input' . $attributes . $checked . '>');
+    }
+
+    public function submit($value = null, $options = [])
+    {
+        return $this->input('submit', null, $value, $options ?? []);
+    }
+
+    public function button($value = null, $options = [])
+    {
+        $options = $options ?? [];
+        $attributes = $this->attributes(array_merge(['type' => 'button'], $options));
+        return new HtmlString('<button' . $attributes . '>' . e($value ?? '') . '</button>');
+    }
+
+    public function input($type, $name, $value = null, $options = [])
+    {
+        $options = $options ?? [];
+
+        if ($type !== 'password' && $type !== 'file') {
+            $value = $this->getValueAttribute($name, $value);
+        }
+
+        $attributes = $this->attributes(array_merge([
+            'type' => $type,
+            'name' => $name,
+            'id' => $options['id'] ?? $name,
+            'value' => $value
+        ], $options));
+
+        return new HtmlString('<input' . $attributes . '>');
+    }
+
+    public function date($name, $value = null, $options = [])
+    {
+        return $this->input('date', $name, $value, $options ?? []);
+    }
+
+    public function time($name, $value = null, $options = [])
+    {
+        return $this->input('time', $name, $value, $options ?? []);
+    }
+
+    public function datetime($name, $value = null, $options = [])
+    {
+        return $this->input('datetime-local', $name, $value, $options ?? []);
+    }
+
+    protected function getValueAttribute($name, $value = null)
+    {
+        if (is_null($name)) {
+            return $value;
+        }
+
+        $old = old($name);
+        if (!is_null($old)) {
+            return $old;
+        }
+
+        if (!is_null($value)) {
+            return $value;
+        }
+
+        if ($this->model && isset($this->model->{$name})) {
+            return $this->model->{$name};
+        }
+
+        return null;
+    }
+
+    protected function getCheckedState($name, $value, $checked)
+    {
+        $old = old($name);
+        if (!is_null($old)) {
+            return $old == $value;
+        }
+
+        if (!is_null($checked)) {
+            return $checked;
+        }
+
+        if ($this->model && isset($this->model->{$name})) {
+            return $this->model->{$name} == $value;
+        }
+
+        return false;
+    }
+
+    protected function attributes($attributes)
+    {
+        $attributes = $attributes ?? [];
+        $html = '';
+        foreach ($attributes as $key => $value) {
+            if (is_null($value)) {
+                continue;
+            }
+            if (is_numeric($key)) {
+                $html .= ' ' . $value;
+            } else {
+                $html .= ' ' . $key . '="' . e($value) . '"';
+            }
+        }
+        return $html;
+    }
+}