fase 3.4: PWA instalable (manifest e iconos, service worker propio con app shell precacheado y cache versionada por build, API nunca cacheada, fallback offline, aviso de instalacion con guia iOS y banner sin conexion) + branding: perfiles de ticket por instancia (defaults neutros, sin filtrar datos de SKEEN) y Dashboard sin nombre hardcodeado

frontend/public/manifest.webmanifest

@@ -0,0 +1,45 @@
+{
+  "name": "Panel Clínico",
+  "short_name": "Clínico",
+  "description": "Gestión clínica: agenda, pacientes, ventas, monedero y reportes.",
+  "lang": "es",
+  "dir": "ltr",
+  "start_url": "/",
+  "scope": "/",
+  "display": "standalone",
+  "orientation": "any",
+  "background_color": "#F8F6F4",
+  "theme_color": "#1f3a4d",
+  "icons": [
+    {
+      "src": "/icons/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/icons/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/icons/icon-192-maskable.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/icons/icon-512-maskable.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    },
+    {
+      "src": "/icons/icon.svg",
+      "sizes": "any",
+      "type": "image/svg+xml",
+      "purpose": "any"
+    }
+  ]
+}