feat(admin): Betreiber-Panel (/api/admin) mit is_admin-Flag

- 0003_admin.sql: accounts.is_admin
- auth.js: ensureAdminFlag (Konto = ADMIN_EMAIL wird auto-promoted),
  is_admin im JWT, requireAdmin-Middleware (prüft DB autoritativ)
- routes/admin.js: GET /stats (Kunden/Abos/Instanzen/MRR), GET /accounts,
  GET /accounts/:id/instances, POST /instances/:id/{suspend,reactivate}
- register/login + /account/me liefern is_admin
- ADMIN_EMAIL in .env.example

E2E: Admin-Promotion, Kunde→403, Stats (2 Kunden/MRR 49), Kundenliste.

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

server/auth.js

@@ -4,6 +4,7 @@
 import bcrypt from "bcryptjs";
 import jwt from "jsonwebtoken";
 import { env } from "./env.js";
+import { one, query } from "./db.js";
 
 export async function hashPassword(plain) {
   return bcrypt.hash(plain, 10);
@@ -14,9 +15,23 @@ export async function verifyPassword(plain, hash) {
 }
 
 export function signToken(account) {
-  return jwt.sign({ sub: account.id, email: account.email }, env.jwtSecret, {
-    expiresIn: "7d",
-  });
+  return jwt.sign(
+    { sub: account.id, email: account.email, is_admin: !!account.is_admin },
+    env.jwtSecret,
+    { expiresIn: "7d" }
+  );
+}
+
+// Promotet das Konto zum Admin, wenn die E-Mail ADMIN_EMAIL entspricht.
+// Wird bei Register/Login aufgerufen, damit dein Konto ohne manuellen DB-Eingriff
+// Admin wird. Gibt das (ggf. aktualisierte) is_admin zurück.
+export async function ensureAdminFlag(account) {
+  const shouldBeAdmin = env.adminEmail && account.email.toLowerCase() === env.adminEmail;
+  if (shouldBeAdmin && !account.is_admin) {
+    await query("update accounts set is_admin = true where id = $1", [account.id]);
+    return true;
+  }
+  return !!account.is_admin;
 }
 
 // Express-Middleware: setzt req.account aus dem Bearer-Token oder 401.
@@ -26,9 +41,20 @@ export function requireAuth(req, res, next) {
   if (!token) return res.status(401).json({ error: "Nicht angemeldet." });
   try {
     const payload = jwt.verify(token, env.jwtSecret);
-    req.account = { id: payload.sub, email: payload.email };
+    req.account = { id: payload.sub, email: payload.email, is_admin: !!payload.is_admin };
     next();
   } catch {
     res.status(401).json({ error: "Session ungültig oder abgelaufen." });
   }
 }
+
+// Wie requireAuth, aber verlangt Admin. Prüft die DB (autoritativ — nicht nur
+// das Token), damit ein entzogenes Admin-Recht sofort greift.
+export function requireAdmin(req, res, next) {
+  requireAuth(req, res, async () => {
+    const row = await one("select is_admin from accounts where id = $1", [req.account.id]);
+    if (!row || !row.is_admin) return res.status(403).json({ error: "Kein Admin-Zugriff." });
+    req.account.is_admin = true;
+    next();
+  });
+}

server/env.js

@@ -26,6 +26,8 @@ export const env = {
   publicBaseUrl: (e.PUBLIC_BASE_URL || "http://localhost:8787").replace(/\/+$/, ""),
   jwtSecret: e.JWT_SECRET || "dev-insecure-secret-change-me",
   databaseUrl: e.DATABASE_URL || "postgres://rapport_host:rapport_host@localhost:55432/rapport_host",
+  // Konto mit dieser E-Mail wird automatisch zum Admin (Betreiber-Bereich /admin).
+  adminEmail: (e.ADMIN_EMAIL || "").trim().toLowerCase(),
   // Gebautes public/ der RAPPORT-WEBSITE (Hugo). Default: Schwester-Repo lokal.
   websitePublicDir: e.WEBSITE_PUBLIC_DIR ||
     new URL("../../RAPPORT-WEBSITE/public", import.meta.url).pathname,

server/index.js

@@ -6,6 +6,7 @@ import { env } from "./env.js";
 import { authRouter } from "./routes/auth.js";
 import { billingRouter } from "./routes/billing.js";
 import { accountRouter } from "./routes/account.js";
+import { adminRouter } from "./routes/admin.js";
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const app = express();
@@ -20,6 +21,7 @@ app.get("/api/health", (_req, res) => res.json({ ok: true, service: "rapport-hos
 app.use("/api/auth", authRouter);
 app.use("/api/billing", billingRouter);
 app.use("/api/account", accountRouter);
+app.use("/api/admin", adminRouter);
 
 // ── Statische Auslieferung der RAPPORT-WEBSITE (Hugo-Build) ──────────────────
 // Die komplette Frontend-Oberfläche (Marketing + Hosting + Login/Konto als

server/migrations/0003_admin.sql

@@ -0,0 +1,5 @@
+-- RAPPORT-HOST — Admin-Flag für den Betreiber-Bereich (/admin).
+-- Ein Konto mit is_admin = true sieht alle Kunden, Abos, Instanzen und kann
+-- Instanzen sperren/reaktivieren. Das eigene Konto wird automatisch promoted,
+-- wenn die E-Mail ADMIN_EMAIL aus der .env entspricht (siehe auth.js).
+alter table accounts add column if not exists is_admin boolean not null default false;

server/routes/account.js

@@ -12,7 +12,7 @@ const PROFILE_FIELDS = ["company", "contact_name", "street", "zip", "city", "cou
 // ── Konto-Übersicht: Konto + Profil + aktuelles Abo + alle Instanzen ─────────
 accountRouter.get("/me", requireAuth, async (req, res) => {
   const account = await one(
-    `select id, email, company, contact_name, street, zip, city, country, phone, created_at
+    `select id, email, company, contact_name, street, zip, city, country, phone, is_admin, created_at
        from accounts where id = $1`,
     [req.account.id]
   );

server/routes/admin.js

@@ -0,0 +1,70 @@
+// RAPPORT-HOST — Betreiber-Bereich (/api/admin). Nur für is_admin-Konten.
+// Übersicht aller Kunden, Abos, Instanzen + Sperren/Reaktivieren.
+import { Router } from "express";
+import { one, query } from "../db.js";
+import { requireAdmin } from "../auth.js";
+import { getPlan } from "../plans.js";
+
+export const adminRouter = Router();
+
+adminRouter.use(requireAdmin);
+
+// — Kennzahlen fürs Dashboard —
+adminRouter.get("/stats", async (_req, res) => {
+  const accounts = await one("select count(*)::int n from accounts");
+  const activeSubs = await one("select count(*)::int n from subscriptions where status = 'active'");
+  const instances = await one("select count(*)::int n from instances");
+  const activeInst = await one("select count(*)::int n from instances where status = 'active'");
+
+  // MRR (geschätzt): Summe der Plan-Preise aller aktiven Abos.
+  const { rows: subs } = await query("select plan from subscriptions where status = 'active'");
+  const mrr = subs.reduce((sum, s) => sum + (getPlan(s.plan)?.priceChf || 0), 0);
+
+  res.json({
+    accounts: accounts.n,
+    activeSubscriptions: activeSubs.n,
+    instances: instances.n,
+    activeInstances: activeInst.n,
+    mrrChf: mrr,
+  });
+});
+
+// — Alle Kunden mit Abo + Instanzen —
+adminRouter.get("/accounts", async (_req, res) => {
+  const { rows } = await query(`
+    select a.id, a.email, a.company, a.is_admin, a.created_at,
+           s.plan, s.status as sub_status, s.current_period_end,
+           coalesce(i.cnt, 0)::int as instance_count
+      from accounts a
+      left join lateral (
+        select plan, status, current_period_end
+          from subscriptions where account_id = a.id
+          order by created_at desc limit 1
+      ) s on true
+      left join (
+        select account_id, count(*) cnt from instances group by account_id
+      ) i on i.account_id = a.id
+      order by a.created_at desc
+  `);
+  res.json({ accounts: rows });
+});
+
+// — Instanzen eines Kontos —
+adminRouter.get("/accounts/:id/instances", async (req, res) => {
+  const { rows } = await query(
+    "select id, studio_slug, label, instance_url, status, created_at from instances where account_id = $1 order by created_at",
+    [req.params.id]
+  );
+  res.json({ instances: rows });
+});
+
+// — Instanz sperren / reaktivieren —
+adminRouter.post("/instances/:id/:action", async (req, res) => {
+  const { id, action } = req.params;
+  const map = { suspend: "suspended", reactivate: "active" };
+  const status = map[action];
+  if (!status) return res.status(400).json({ error: "Unbekannte Aktion." });
+  const row = await one("update instances set status = $1 where id = $2 returning id, status", [status, id]);
+  if (!row) return res.status(404).json({ error: "Instanz nicht gefunden." });
+  res.json({ instance: row });
+});

server/routes/auth.js

@@ -1,7 +1,7 @@
 // HOST-Konten: Registrierung + Login. Gibt ein JWT zurück.
 import { Router } from "express";
 import { one } from "../db.js";
-import { hashPassword, verifyPassword, signToken } from "../auth.js";
+import { hashPassword, verifyPassword, signToken, ensureAdminFlag } from "../auth.js";
 
 export const authRouter = Router();