feat(portal): refine account identity controls

design/us-007-ip-intelligence.md

@@ -3,7 +3,7 @@ type: User Story
 title: Enrich portal and game login IPs
 description: Login audit events include cached approximate location and network intelligence from ProxyCheck.io.
 tags: [security, network, audit, proxycheck]
-timestamp: 2026-08-01T18:43:58Z
+timestamp: 2026-08-01T22:04:17Z
 story_id: US-007
 status: verified
 ---
@@ -22,6 +22,7 @@ As an operator, I want portal and registered game logins enriched with network c
 - [x] Unknown game accounts do not trigger paid ProxyCheck lookups.
 - [x] Login events and IP observations retain the available classification and approximate location.
 - [x] Users and administrators can see available location and classification in audit views.
+- [x] Repeated access observations are summarized by IPv4 /24 or IPv6 /64 network with counts, sources, and latest activity.
 
 # Implementation
 
@@ -34,6 +35,8 @@ As an operator, I want portal and registered game logins enriched with network c
 
 - [`packages/network/test/proxycheck.test.ts`](../packages/network/test/proxycheck.test.ts)
 - [`packages/network/test/client-ip.test.ts`](../packages/network/test/client-ip.test.ts)
+- [`packages/network/test/address-groups.test.ts`](../packages/network/test/address-groups.test.ts)
+- [`apps/web/src/lib/access-address-groups.test.ts`](../apps/web/src/lib/access-address-groups.test.ts)
 
 # Related Stories