feat: branch betos — propiedades, oferta de proveedores, chat en contratos y flujo de postulacion renovado

- Sistema de propiedades: tabla, modelo, CRUD API para que el cliente guarde direcciones nombradas
- Postulacion renovada: cliente elige propiedad sin precio ni fecha, sube fotos a GCS/S3
- Proveedores ofertan date_1, date_2 y amount al postularse via pivot; sort por fecha/monto/membresia
- Contratacion: selected_date recibe date_1 o date_2, amount desde pivot (depreca minimun_fee)
- Cancelacion/repostulacion: archive con status=perdido, related_postulation_id para vincular
- Chat en contratos activos: tabla contract_comments, controller, rutas web+API, vista panel, notificaciones bilingues
- PaymentIntent calcula amount desde pivot en vez de recibirlo del front
- getpendingcontracts: sin filtro de tiempo, filtra por status=active, agrega time_created
- Expiracion de postulaciones reducida a 1000 min

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

database/migrations/2026_06_23_000001_create_properties_table.php

@@ -0,0 +1,30 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreatePropertiesTable extends Migration
+{
+    public function up()
+    {
+        Schema::create('properties', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->unsignedBigInteger('user_id');
+            $table->string('name');
+            $table->string('address');
+            $table->string('int_number')->nullable();
+            $table->decimal('lat', 10, 7);
+            $table->decimal('lng', 10, 7);
+            $table->enum('icon', ['casa', 'oficina'])->default('casa');
+            $table->timestamps();
+
+            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
+        });
+    }
+
+    public function down()
+    {
+        Schema::dropIfExists('properties');
+    }
+}

database/migrations/2026_06_23_000002_alter_postulations_add_property_nullable_amount.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AlterPostulationsAddPropertyNullableAmount extends Migration
+{
+    public function up()
+    {
+        Schema::table('postulations', function (Blueprint $table) {
+            $table->unsignedBigInteger('property_id')->nullable()->after('category_id');
+            $table->json('photos')->nullable()->after('details');
+            $table->float('amount')->nullable()->change();
+
+            $table->foreign('property_id')->references('id')->on('properties')->onDelete('set null');
+        });
+    }
+
+    public function down()
+    {
+        Schema::table('postulations', function (Blueprint $table) {
+            $table->dropForeign(['property_id']);
+            $table->dropColumn(['property_id', 'photos']);
+            $table->float('amount')->nullable(false)->change();
+        });
+    }
+}

database/migrations/2026_06_23_000003_alter_postulations_suppliers_add_offer_fields.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AlterPostulationsSuppliersAddOfferFields extends Migration
+{
+    public function up()
+    {
+        Schema::table('postulations_suppliers', function (Blueprint $table) {
+            $table->timestamp('date_1')->nullable()->after('suppliers_id');
+            $table->timestamp('date_2')->nullable()->after('date_1');
+            $table->float('amount')->nullable()->after('date_2');
+        });
+    }
+
+    public function down()
+    {
+        Schema::table('postulations_suppliers', function (Blueprint $table) {
+            $table->dropColumn(['date_1', 'date_2', 'amount']);
+        });
+    }
+}

database/migrations/2026_06_23_000004_create_contract_comments_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateContractCommentsTable extends Migration
+{
+    public function up()
+    {
+        Schema::create('contract_comments', function (Blueprint $table) {
+            $table->bigIncrements('id');
+            $table->unsignedBigInteger('contract_id');
+            $table->unsignedBigInteger('user_id')->nullable();
+            $table->text('comment')->nullable();
+            $table->timestamps();
+
+            $table->foreign('contract_id')->references('id')->on('current_contracts')->onDelete('cascade');
+            $table->foreign('user_id')->references('id')->on('users')->onDelete('set null');
+        });
+    }
+
+    public function down()
+    {
+        Schema::dropIfExists('contract_comments');
+    }
+}

database/migrations/2026_06_23_000005_alter_postulations_add_status_related.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::table('postulations', function (Blueprint $table) {
+            $table->string('status')->default('active')->after('photos');
+            $table->unsignedBigInteger('related_postulation_id')->nullable()->after('status');
+            $table->foreign('related_postulation_id')
+                  ->references('id')->on('postulations')
+                  ->onDelete('set null');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('postulations', function (Blueprint $table) {
+            $table->dropForeign(['related_postulation_id']);
+            $table->dropColumn(['status', 'related_postulation_id']);
+        });
+    }
+};