feat(identity+admin): CRM analytics + customer notes + user power-actions

Modeled on the legacy DivineGateWeb admin (CRM + Security/* actions):
- identity-svc AdminService + AdminController (admin-gated):
  - GET /v1/admin/crm/analytics — signups/buyers/conversion/revenue + daily series
    (from identity.users + identity.payments)
  - GET/PUT /v1/users/{id}/crm — tags / note / pipeline status (user_crm table, mig 20)
  - power-actions: POST /v1/users/{id}/{balance,password,charge,moderator,grant-plan}
- admin UI: /admin/crm dashboard (funnel cards + daily signup/revenue bars);
  per-user "مدیریت" modal in Users (balance, render charge, plan days, password,
  moderator, CRM notes)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/app/[locale]/admin/crm/page.tsx

@@ -0,0 +1,7 @@
+"use client";
+
+import { CrmAdmin } from "@/components/admin/CrmAdmin";
+
+export default function Page() {
+  return <CrmAdmin />;
+}

src/app/[locale]/admin/layout.tsx

@@ -26,6 +26,7 @@ export default async function AdminLayout({
     { href: "/admin/ai", label: t("aiContent") },
     { href: "/admin/messaging", label: t("messaging") },
     { href: "/admin/marketing", label: t("marketing") },
+    { href: "/admin/crm", label: t("crm") },
     { href: "/admin/users", label: t("users") },
     { href: "/admin/plans", label: t("plans") },
     { href: "/admin/discounts", label: t("discounts") },