feat(groups): add fail-closed admission management

design/us-001-discord-entry.md

@@ -3,7 +3,7 @@ type: User Story
 title: Enter the account portal through Discord
 description: Direct visitors are guided to the configured Discord community and its account commands.
 tags: [player, portal, discord, onboarding]
-timestamp: 2026-08-01T22:04:17Z
+timestamp: 2026-08-01T22:34:31Z
 story_id: US-001
 status: verified
 ---
@@ -19,12 +19,14 @@ As a prospective player, I want the portal to direct me to the community Discord
 - [x] Given a configured guild ID, when the visitor selects the app action, then a `discord://` guild link is opened.
 - [x] Given an unauthenticated protected-page request, when authorization fails, then the visitor returns to the portal with prominent Discord instructions.
 - [x] Every portal page credits Social Minecraft sponsorship by DMG Games and links to `https://dmg.games`.
+- [x] Portal branding uses the SoMC Portal name and a dedicated favicon.
 
 # Implementation
 
 - [`apps/web/src/app/page.tsx`](../apps/web/src/app/page.tsx)
 - [`apps/web/src/lib/auth/user-session.ts`](../apps/web/src/lib/auth/user-session.ts)
 - [`apps/web/src/components/site-footer.tsx`](../apps/web/src/components/site-footer.tsx)
+- [`apps/web/src/app/icon.svg`](../apps/web/src/app/icon.svg)
 - Configuration: `DISCORD_GUILD_ID`, `DISCORD_INVITE_URL`
 
 # Validation