feat: portal redesign, pricing catalog, partner-staff invites

- portal: new admin/ and partner/ surfaces with full component library
  (AppLauncher, Avatar, Badge, Card, Modal, Tabs, etc.), composables,
  layouts, partner-routing middleware, and supporting server APIs
- pricing: Price schema/module with operator CRUD, pricing.vue catalog UI,
  Subscription extended with cycle/currency/perSeatAmount/seats snapshots
  for stable MRR aggregation
- partner staff: User.partnerId, invite-partner-user DTO and flow,
  /partners/:slug/users endpoints, InvitePartnerUserModal, shared
  dezky-partner-staff Authentik group
- /me: partner-aware endpoint returning user + partner context so portal
  can route between end-user and partner-admin surfaces
- tenant: seats field for portfolio displays and future MRR calculations
- operator: pricing page, signed-out page, useMe/useToast composables,
  ToastStack

apps/portal/components/enduser/EnduserFormField.vue

@@ -0,0 +1,59 @@
+<script setup lang="ts">
+// Simple label + slot wrapper used across the profile/security pages.
+defineProps<{ label: string; hint?: string }>()
+</script>
+
+<template>
+  <label class="field">
+    <span class="label">{{ label }}</span>
+    <slot />
+    <span v-if="hint" class="hint">{{ hint }}</span>
+  </label>
+</template>
+
+<style scoped>
+.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
+.label {
+  font-family: var(--font-mono);
+  font-size: 10px;
+  letter-spacing: 0.12em;
+  text-transform: uppercase;
+  color: var(--text-mute);
+  font-weight: 500;
+}
+.hint {
+  font-family: var(--font-mono);
+  font-size: 10px;
+  color: var(--text-mute);
+}
+
+.field :deep(input),
+.field :deep(textarea),
+.field :deep(select) {
+  height: 36px;
+  padding: 0 12px;
+  background: var(--surface);
+  border: 1px solid var(--border);
+  border-radius: 6px;
+  font-family: inherit;
+  font-size: 13px;
+  color: var(--text);
+  outline: none;
+  width: 100%;
+  transition: border-color 0.12s, background 0.12s;
+}
+.field :deep(textarea) {
+  min-height: 110px;
+  padding: 10px 12px;
+  height: auto;
+  resize: vertical;
+  line-height: 1.55;
+}
+.field :deep(input:focus),
+.field :deep(textarea:focus),
+.field :deep(select:focus) {
+  border-color: var(--text);
+  background: var(--bg);
+}
+.field :deep(input:disabled) { background: var(--bg); color: var(--text-mute); cursor: not-allowed; }
+</style>