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/server/api/partner/tenants.post.ts

@@ -0,0 +1,27 @@
+// Partner-staff self-serve customer create. Forwards the user's access
+// token to platform-api POST /me/partner/tenants, which scopes the
+// new tenant to the caller's partner regardless of what the body says.
+// Returns the created tenant doc.
+
+import { getUserSession } from 'nuxt-oidc-auth/runtime/server/utils/session.js'
+
+export default defineEventHandler(async (event) => {
+  const session = await getUserSession(event).catch(() => null)
+  const accessToken = (session as { accessToken?: string } | null)?.accessToken
+  if (!accessToken) {
+    throw createError({ statusCode: 401, statusMessage: 'Not signed in' })
+  }
+
+  const body = await readBody(event)
+  const base = process.env.PLATFORM_API_INTERNAL_URL ?? 'http://platform-api:3001'
+  try {
+    return await $fetch(`${base}/me/partner/tenants`, {
+      method: 'POST',
+      headers: { Authorization: `Bearer ${accessToken}` },
+      body,
+    })
+  } catch (err: unknown) {
+    const e = err as { statusCode?: number; data?: unknown }
+    throw createError({ statusCode: e.statusCode ?? 500, data: e.data })
+  }
+})