Postfach/Team-Verwaltung/Supporter-Abo als Node.js/Express-Server portiert

Vollständiger 1:1-Port des cloudflare-worker/ (dogfather-universe-postfach)
auf server-internal/: Bewerbungs-Postfach mit Rollen/Rechten, Team-
Zugangsverwaltung (verschlüsselte Owner-only-Codes), DogiCrew-Supporter-Abo
(PayPal Subscriptions, Google-Login, Resend-E-Mail, 30-Monats-Prämienzyklus)
und automatische TikTok-Live-Erkennung. D1 -> better-sqlite3, Cloudflare-
Cron -> node-cron. Läuft ohne gesetzte Secrets weiter (PayPal/Google/Resend/
Ticketanizer/Discord bleiben "nicht konfiguriert" statt kaputt), bis die
echten Zugangsdaten eingetragen werden.

server-internal/lib/supporter-cycle.js

@@ -0,0 +1,57 @@
+/* =====================================================================
+   lib/supporter-cycle.js — Reine Rechenlogik für den 30-Monats-Prämienzyklus.
+   1:1 portiert, unverändert (keine D1-/Netzwerkabhängigkeit).
+   ===================================================================== */
+
+export const CYCLE_LENGTH = 30;
+
+export const MILESTONES = [
+  { month: 6, type: "teddy_klein", labelDe: "Kleiner Hasen-Teddy" },
+  { month: 12, type: "teddy_mittel", labelDe: "Mittelgroßer Hasen-Teddy" },
+  { month: 18, type: "teddy_gross", labelDe: "Großer Hasen-Teddy" },
+  { month: 24, type: "tasse_karte", labelDe: "Tasse & Autogrammkarte" },
+  { month: 30, type: "hoodie", labelDe: "Exklusiver Hoodie" },
+];
+
+export function computeProgress(totalPaidMonths) {
+  const total = Math.max(0, Math.floor(totalPaidMonths || 0));
+  if (total === 0) return { totalPaidMonths: 0, completedCycles: 0, cycleNumber: 1, currentCycleMonth: 0 };
+  const completedCycles = Math.floor((total - 1) / CYCLE_LENGTH);
+  const currentCycleMonth = total - completedCycles * CYCLE_LENGTH;
+  return { totalPaidMonths: total, completedCycles, cycleNumber: completedCycles + 1, currentCycleMonth };
+}
+
+export function reachedMilestonesInCurrentCycle(currentCycleMonth) {
+  return MILESTONES.filter((m) => currentCycleMonth >= m.month);
+}
+
+export function nextMilestone(currentCycleMonth) {
+  return MILESTONES.find((m) => currentCycleMonth < m.month) || null;
+}
+
+export function allUnlockedMilestones(totalPaidMonths) {
+  const { completedCycles, currentCycleMonth } = computeProgress(totalPaidMonths);
+  const unlocked = [];
+  for (let c = 1; c <= completedCycles; c++) {
+    for (const m of MILESTONES) unlocked.push({ cycleNumber: c, ...m });
+  }
+  const cycleNumber = completedCycles + 1;
+  for (const m of reachedMilestonesInCurrentCycle(currentCycleMonth)) {
+    unlocked.push({ cycleNumber, ...m });
+  }
+  return unlocked;
+}
+
+export function timelineForCurrentCycle(totalPaidMonths) {
+  const { currentCycleMonth, cycleNumber } = computeProgress(totalPaidMonths);
+  return {
+    cycleNumber,
+    currentCycleMonth,
+    milestones: MILESTONES.map((m) => ({
+      ...m,
+      reached: currentCycleMonth >= m.month,
+      isNext: nextMilestone(currentCycleMonth)?.month === m.month,
+      monthsRemaining: Math.max(0, m.month - currentCycleMonth),
+    })),
+  };
+}