feat: Customize hub + roles editor, terminal logo, invite links

IA refactor and the custom-roles editor pass 11 left as data-only.

Customize hub:
- New /customize (admin/board) with a left section rail: Roles,
  Membership tiers, Areas, Invite codes, Onboarding.
- One focused module per panel under app/(app)/customize/panels/
  plus a shared card and types file. The client shell is ~75 lines;
  each panel is self-contained (smart separation of concerns).
- Settings slimmed to Space, Integrations, Webhooks. Removed the
  Roles/Tiers/Invites/Onboarding tabs and the Areas block from
  settings-client.tsx (~700 lines) and the matching fetches from
  settings/page.tsx. Dead props/state/types removed.
- Sidebar: added a Customize NavLink (admin/board).

Roles editor:
- Rename/recolor the five built-in roles (upsertRoleLabel) and full
  CRUD on custom org roles. Adds the read path the audit flagged as
  missing: lib/role-labels.ts (getRoleLabelMap/roleDisplayName) is
  consumed in (app)/layout.tsx so the sidebar shows the renamed role.

Logo:
- Reverted the brand mark to the terminal >_ glyph
  (components/brand-mark.tsx) on the landing nav/footer, onboarding
  header, and favicon (public/logo.svg). Removed the dead local
  IcoTerminal. AtlasLogo stays only on the resources project page.

Invite links:
- InvitesPanel has Copy code and Copy link (/signup?invite=CODE).
  signup reads ?invite= on mount, prefills the code, preselects join.

Deferred and tracked in HANDOFF: types/database.ts sync, renamed-role
display on the members table, splitting the still-large
settings-client.tsx, custom-role assignment UI.

266/266 tests pass. Production build clean; /customize, /onboarding,
slimmed /settings all in the route table. No migration this pass.

app/(landing)/page.tsx

@@ -2,7 +2,7 @@
 
 import { useState, useEffect } from 'react'
 import Link from 'next/link'
-import { AtlasLogo } from '@/components/resources/atlas-logo'
+import { BrandMark } from '@/components/brand-mark'
 
 // Icons
 function IcoUsers({ className }: { className?: string }) {
@@ -26,9 +26,6 @@ function IcoDoc({ className }: { className?: string }) {
 function IcoArrow({ className }: { className?: string }) {
   return <svg className={className} fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M17 8l4 4m0 0l-4 4m4-4H3" /></svg>
 }
-function IcoTerminal({ className }: { className?: string }) {
-  return <svg className={className} fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M8 9l3 3-3 3m5 0h3M5 20h14a2 2 0 002-2V6a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z" /></svg>
-}
 function IcoEye({ className }: { className?: string }) {
   return <svg className={className} fill="none" stroke="currentColor" viewBox="0 0 24 24"><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" /><path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z" /></svg>
 }
@@ -319,7 +316,7 @@ export default function LandingPage() {
       <nav className="border-b border-border bg-sidebar">
         <div className="max-w-6xl mx-auto px-4 md:px-6 py-3 flex items-center justify-between gap-4">
           <div className="flex items-center gap-2 min-w-0">
-            <AtlasLogo className="w-6 h-6 text-primary shrink-0" />
+            <BrandMark className="w-5 h-5 text-primary shrink-0" />
             <span className="font-mono text-sm font-bold text-white truncate">hackerspace.sh</span>
           </div>
           <div className="flex items-center gap-2 shrink-0">
@@ -516,7 +513,7 @@ export default function LandingPage() {
         <div className="max-w-6xl mx-auto px-4 md:px-6 py-8">
           <div className="flex flex-col md:flex-row items-start md:items-center justify-between gap-4">
             <div className="flex items-center gap-2">
-              <AtlasLogo className="w-5 h-5 text-primary" />
+              <BrandMark className="w-4 h-4 text-primary" />
               <span className="font-mono text-xs text-sidebar-foreground">hackerspace.sh</span>
             </div>
             <div className="flex items-center gap-4">