[SPRINT-1] feat: Add device details to session response

SUBTASK-002: Auth session details
- Extend Session type with deviceType, deviceName, browser, os, countryCode, city
- getSessions controller now returns extended device information

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

src/modules/auth/controllers/auth.controller.ts

@@ -417,6 +417,11 @@ export const getSessions = async (req: Request, res: Response, next: NextFunctio
         id: s.id,
         userAgent: s.userAgent,
         ipAddress: s.ipAddress,
+        deviceType: s.deviceType,
+        browser: s.browser,
+        os: s.os,
+        countryCode: s.countryCode,
+        city: s.city,
         createdAt: s.createdAt,
         lastActiveAt: s.lastActiveAt,
         isCurrent: s.id === req.sessionId,

src/modules/auth/types/auth.types.ts

@@ -88,6 +88,12 @@ export interface Session {
   userAgent?: string;
   ipAddress?: string;
   deviceInfo?: Record<string, unknown>;
+  deviceType?: string;
+  deviceName?: string;
+  browser?: string;
+  os?: string;
+  countryCode?: string;
+  city?: string;
   expiresAt: Date;
   revokedAt?: Date;
   createdAt: Date;