[SPRINT-1] feat: Resolve routing and improve auth session management

SUBTASK-001: Routing fixes
- Add lazy-loaded route for /portfolio/:portfolioId
- Add navigation links from PortfolioDashboard to portfolio detail
- Verify /settings/billing is intentional dual-route (no changes needed)

SUBTASK-002: Auth improvements
- Extend ActiveSession type with device details (deviceType, browser, os, location)
- DeviceCard now uses backend data when available, falls back to userAgent parsing

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

src/App.tsx

@@ -41,6 +41,7 @@ const Assistant = lazy(() => import('./modules/assistant/pages/Assistant'));
 
 // Lazy load modules - Portfolio
 const PortfolioDashboard = lazy(() => import('./modules/portfolio/pages/PortfolioDashboard'));
+const PortfolioDetailPage = lazy(() => import('./modules/portfolio/pages/PortfolioDetailPage'));
 const CreatePortfolio = lazy(() => import('./modules/portfolio/pages/CreatePortfolio'));
 const CreateGoal = lazy(() => import('./modules/portfolio/pages/CreateGoal'));
 const EditAllocations = lazy(() => import('./modules/portfolio/pages/EditAllocations'));
@@ -112,6 +113,7 @@ function App() {
           <Route path="/portfolio" element={<PortfolioDashboard />} />
           <Route path="/portfolio/new" element={<CreatePortfolio />} />
           <Route path="/portfolio/goals/new" element={<CreateGoal />} />
+          <Route path="/portfolio/:portfolioId" element={<PortfolioDetailPage />} />
           <Route path="/portfolio/:portfolioId/edit" element={<EditAllocations />} />
 
           {/* Education */}

src/modules/auth/components/DeviceCard.tsx

@@ -55,9 +55,21 @@ interface DeviceCardProps {
 
 export function DeviceCard({ session, isRevoking, onRevoke }: DeviceCardProps) {
   const [showConfirm, setShowConfirm] = useState(false);
-  const deviceInfo = authService.parseUserAgent(session.userAgent);
+  const parsedInfo = authService.parseUserAgent(session.userAgent);
   const relativeTime = authService.formatRelativeTime(session.lastActiveAt);
 
+  // Use backend-provided device info if available, otherwise use parsed info
+  const deviceInfo = {
+    type: (session.deviceType as 'desktop' | 'mobile' | 'tablet' | 'unknown') || parsedInfo.type,
+    os: session.os || parsedInfo.os,
+    browser: session.browser || parsedInfo.browser,
+  };
+
+  // Format location from backend data
+  const location = session.city && session.countryCode
+    ? `${session.city}, ${session.countryCode}`
+    : session.countryCode || null;
+
   // Get device icon based on type
   const DeviceIcon = {
     desktop: DesktopIcon,
@@ -117,7 +129,7 @@ export function DeviceCard({ session, isRevoking, onRevoke }: DeviceCardProps) {
                   <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2}
                     d="M15 11a3 3 0 11-6 0 3 3 0 016 0z" />
                 </svg>
-                {session.ipAddress || 'Unknown IP'}
+                {location ? `${location} (${session.ipAddress || 'Unknown IP'})` : session.ipAddress || 'Unknown IP'}
               </span>
             </p>
             <p className="flex items-center gap-2">

src/modules/portfolio/pages/PortfolioDashboard.tsx

@@ -195,17 +195,29 @@ export default function PortfolioDashboard() {
       {portfolios.length > 1 && (
         <div className="flex gap-2 mb-6 overflow-x-auto pb-2">
           {portfolios.map((p) => (
-            <button
-              key={p.id}
-              onClick={() => selectPortfolio(p)}
-              className={`px-4 py-2 rounded-lg whitespace-nowrap transition-colors ${
-                selectedPortfolio?.id === p.id
-                  ? 'bg-blue-600 text-white'
-                  : 'bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-600'
-              }`}
-            >
-              {p.name}
-            </button>
+            <div key={p.id} className="flex items-center gap-1">
+              <button
+                onClick={() => selectPortfolio(p)}
+                className={`px-4 py-2 rounded-l-lg whitespace-nowrap transition-colors ${
+                  selectedPortfolio?.id === p.id
+                    ? 'bg-blue-600 text-white'
+                    : 'bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300 hover:bg-gray-200 dark:hover:bg-gray-600'
+                }`}
+              >
+                {p.name}
+              </button>
+              <Link
+                to={`/portfolio/${p.id}`}
+                className={`px-2 py-2 rounded-r-lg whitespace-nowrap transition-colors ${
+                  selectedPortfolio?.id === p.id
+                    ? 'bg-blue-700 text-white hover:bg-blue-800'
+                    : 'bg-gray-200 dark:bg-gray-600 text-gray-700 dark:text-gray-300 hover:bg-gray-300 dark:hover:bg-gray-500'
+                }`}
+                title="Ver detalle"
+              >
+                <ArrowTrendingUpIcon className="w-4 h-4" />
+              </Link>
+            </div>
           ))}
         </div>
       )}
@@ -388,6 +400,12 @@ export default function PortfolioDashboard() {
                     </span>
                   </div>
                 </div>
+                <Link
+                  to={`/portfolio/${selectedPortfolio.id}`}
+                  className="mt-4 w-full block text-center px-4 py-2 bg-blue-600 hover:bg-blue-700 text-white font-medium rounded-lg transition-colors"
+                >
+                  Ver Detalle Completo
+                </Link>
               </div>
             </div>
           </div>

src/services/auth.service.ts

@@ -14,6 +14,11 @@ export interface ActiveSession {
   id: string;
   userAgent: string;
   ipAddress: string;
+  deviceType?: string;
+  browser?: string;
+  os?: string;
+  countryCode?: string;
+  city?: string;
   createdAt: string;
   lastActiveAt: string;
   isCurrent: boolean;