fix(rendering): handle empty supabase array safely and speed up splash screen

frontend/src/views/SplashScreen.vue

@@ -44,22 +44,26 @@ onMounted(async () => {
   showLoading.value = true
   loadingVisible.value = true
 
-  // Short timeout for safety - app should be ready way before this
-  const initTimeout = setTimeout(() => {
+  // Timeout logic
+  const initTimeout = setTimeout(async () => {
     console.warn('Initialization taking too long, forcing navigation...')
     statusMessage.value = 'Iniciando de todas formas...'
-    navigate(null, true)
-  }, 3000)
+    try {
+      const resp = await supabase.auth.getSession()
+      navigate(resp.data.session)
+    } catch {
+      navigate()
+    }
+  }, 4000)
 
   try {
-    // Start all tasks in parallel: Session check + Data loading
-    const [sessionData] = await Promise.all([
-      supabase.auth.getSession(),
-      performInitializationTasks()
-    ])
+    // Start map background initialization without waiting
+    performInitializationTasks()
+    
+    const resp = await supabase.auth.getSession()
     
     clearTimeout(initTimeout)
-    navigate(sessionData.data.session)
+    navigate(resp.data.session)
   } catch (error) {
     console.error('Initialization failed', error)
     clearTimeout(initTimeout)