fix(portal): app launcher opens real per-service hosts

The "Jump to" launcher only navigated for the internal tiles (Personal /
Admin / Partner); every external app (Mail, Drev, Møder, …) just fired a
toast and never opened. Hosts were also hardcoded to *.dezky.com, with Drev
pointing at a vanity drev. subdomain instead of the real OCIS host.

- Open external apps in a new tab at https://<host>.<baseDomain>
- Derive the base domain from the portal's own hostname so links resolve in
  every environment (app.dezky.local → dezky.local, app.dezky.com → dezky.com)
- Map Drev → files (OCIS); mail/meet/chat/cal/contacts/docs use their service
  subdomain

apps/portal/components/AppLauncher.vue

@@ -15,7 +15,10 @@ interface Tile {
   key: string
   name: string
   icon: IconName
-  ext: string
+  // Real per-service subdomain behind Traefik (e.g. 'files' for OCIS). Combined
+  // with the live base domain at click time to build the app URL. Omitted for
+  // internal tiles (Personal / Admin / Partner) which navigate in-app instead.
+  host?: string
   current?: boolean
 }
 
@@ -32,12 +35,13 @@ const tiles = computed<Tile[]>(() => {
   const isAdmin = section.value === 'admin'
   const isPartner = section.value === 'partner'
   const base: Tile[] = [
-    { key: 'mail',     name: 'Mail',      icon: 'mail',     ext: 'mail.dezky.com' },
-    { key: 'drev',     name: 'Drev',      icon: 'folder',   ext: 'drev.dezky.com' },
-    { key: 'moder',    name: 'Møder',     icon: 'video',    ext: 'meet.dezky.com' },
-    { key: 'chat',     name: 'Chat',      icon: 'chat',     ext: 'chat.dezky.com' },
-    { key: 'cal',      name: 'Kalender',  icon: 'calendar', ext: 'cal.dezky.com' },
-    { key: 'contacts', name: 'Kontakter', icon: 'users',    ext: 'contacts.dezky.com' },
+    { key: 'mail',     name: 'Mail',      icon: 'mail',     host: 'mail' },
+    // Drev = OCIS files, served at files.<domain> (not a vanity 'drev' host).
+    { key: 'drev',     name: 'Drev',      icon: 'folder',   host: 'files' },
+    { key: 'moder',    name: 'Møder',     icon: 'video',    host: 'meet' },
+    { key: 'chat',     name: 'Chat',      icon: 'chat',     host: 'chat' },
+    { key: 'cal',      name: 'Kalender',  icon: 'calendar', host: 'cal' },
+    { key: 'contacts', name: 'Kontakter', icon: 'users',    host: 'contacts' },
   ]
   // Admin tile is the entry point to the workspace-admin surface. Show it to any
   // tenant admin/owner (so they can get TO /admin from the personal shell), not
@@ -46,23 +50,40 @@ const tiles = computed<Tile[]>(() => {
   // admin and personal surfaces — clicking either crosses over, "HERE" shows
   // which side you're on.
   if (isAdmin || isTenantAdmin.value) {
-    base.push({ key: 'home', name: 'Personal', icon: 'home', ext: 'app.dezky.com', current: section.value === 'user' })
-    base.push({ key: 'admin', name: 'Admin', icon: 'shield', ext: 'admin.dezky.com', current: isAdmin && !isPartner })
+    base.push({ key: 'home', name: 'Personal', icon: 'home', current: section.value === 'user' })
+    base.push({ key: 'admin', name: 'Admin', icon: 'shield', current: isAdmin && !isPartner })
   }
   if (isPartner) {
-    base.push({ key: 'partner', name: 'Partner', icon: 'briefcase', ext: 'partner.nordicmsp.dk', current: true })
+    base.push({ key: 'partner', name: 'Partner', icon: 'briefcase', current: true })
   }
-  base.push({ key: 'docs', name: 'Docs', icon: 'file', ext: 'docs.dezky.com' })
+  base.push({ key: 'docs', name: 'Docs', icon: 'file', host: 'docs' })
   return base
 })
 
+// The base domain the portal itself is served on, so app links resolve in every
+// environment: app.dezky.local → dezky.local, app.dezky.com → dezky.com. Falls
+// back to the dev domain during SSR (open() only runs client-side on click).
+function appBaseDomain(): string {
+  if (import.meta.client) {
+    const parts = window.location.hostname.split('.')
+    return parts.length > 2 ? parts.slice(1).join('.') : window.location.hostname
+  }
+  return 'dezky.local'
+}
+
 const toast = useToast()
 function open(t: Tile) {
   launcher.hide()
   if (t.key === 'home') return navigateTo('/')
   if (t.key === 'admin') return navigateTo('/admin')
   if (t.key === 'partner') return navigateTo('/partner')
-  toast.info(`Opening ${t.name}…`, t.ext)
+  if (t.host) {
+    const url = `https://${t.host}.${appBaseDomain()}`
+    window.open(url, '_blank', 'noopener')
+    toast.info(`Opening ${t.name}…`, url.replace(/^https:\/\//, ''))
+    return
+  }
+  toast.info(`Opening ${t.name}…`)
 }
 
 onMounted(() => {