Upgrade: Angular 18, Ionic 8, Capacitor 6

Modernizacion completa del frontend:

- Angular 8 -> 18.2.14
- Ionic 4 -> 8.7.17
- Capacitor 6.x (migracion desde Cordova/@ionic-native)
- TypeScript 5.4.5
- Swiper 11 con Web Components API

Cambios principales:
- Migrar NativeStorage a @capacitor/preferences
- Migrar InAppBrowser a @capacitor/browser
- Migrar Camera a @capacitor/camera
- Migrar Geolocation a @capacitor/geolocation
- Migrar StatusBar/SplashScreen a Capacitor
- Migrar Facebook/Google login a plugins Capacitor
- Actualizar lazy loading syntax (Angular 12+)
- Configurar buildOptimizer: false para Ionic 8
- Limpiar package.json de dependencias obsoletas
- Agregar README con guia de instalacion

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

angular.json

@@ -1,7 +1,6 @@
 {
   "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
   "version": 1,
-  "defaultProject": "app",
   "newProjectRoot": "projects",
   "projects": {
     "app": {
@@ -49,15 +48,21 @@
                   "with": "src/environments/environment.prod.ts"
                 }
               ],
-              "optimization": true,
+              "optimization": {
+                "scripts": true,
+                "styles": {
+                  "minify": true,
+                  "inlineCritical": false
+                },
+                "fonts": true
+              },
               "outputHashing": "all",
               "sourceMap": false,
-              "extractCss": true,
               "namedChunks": false,
               "aot": true,
               "extractLicenses": true,
               "vendorChunk": false,
-              "buildOptimizer": true,
+              "buildOptimizer": false,
               "budgets": [
                 {
                   "type": "initial",
@@ -74,11 +79,11 @@
         "serve": {
           "builder": "@angular-devkit/build-angular:dev-server",
           "options": {
-            "browserTarget": "app:build"
+            "buildTarget": "app:build"
           },
           "configurations": {
             "production": {
-              "browserTarget": "app:build:production"
+              "buildTarget": "app:build:production"
             },
             "ci": {
               "progress": false
@@ -88,7 +93,7 @@
         "extract-i18n": {
           "builder": "@angular-devkit/build-angular:extract-i18n",
           "options": {
-            "browserTarget": "app:build"
+            "buildTarget": "app:build"
           }
         },
         "test": {
@@ -121,14 +126,12 @@
           }
         },
         "lint": {
-          "builder": "@angular-devkit/build-angular:tslint",
+          "builder": "@angular-eslint/builder:lint",
           "options": {
-            "tsConfig": [
-              "tsconfig.app.json",
-              "tsconfig.spec.json",
-              "e2e/tsconfig.json"
-            ],
-            "exclude": ["**/node_modules/**"]
+            "lintFilePatterns": [
+              "src/**/*.ts",
+              "src/**/*.html"
+            ]
           }
         },
         "e2e": {