fix: resolve lint errors in layout and route by updating analytics interface

lib/services/analytics/analytics-service.ts

@@ -73,4 +73,15 @@ export interface AnalyticsService {
    * ```
    */
   trackPageview(url?: string): void;
+
+  /**
+   * Set the server-side context for the current request.
+   * This is used for server-side tracking (e.g. from Next.js proxy).
+   */
+  setServerContext?(context: {
+    userAgent?: string;
+    language?: string;
+    referrer?: string;
+    ip?: string;
+  }): void;
 }

lib/services/analytics/noop-analytics-service.ts

@@ -68,4 +68,16 @@ export class NoopAnalyticsService implements AnalyticsService {
   trackPageview(_url?: string) {
     // intentionally noop - analytics are disabled
   }
+
+  /**
+   * No-op implementation of setServerContext.
+   */
+  setServerContext(_context: {
+    userAgent?: string;
+    language?: string;
+    referrer?: string;
+    ip?: string;
+  }) {
+    // intentionally noop - analytics are disabled
+  }
 }