fix: preserve explicit Doodstream web login and reuse OTP sessions

lib/account-auth.js

@@ -20,6 +20,10 @@ const { createHash } = require('node:crypto');
 function selectUploadAuth(hoster, account) {
   if (!account || typeof account !== 'object') return {};
 
+  if (account.authType === 'login' && account.username && account.password) {
+    return { username: account.username, password: account.password };
+  }
+
   if (hoster === 'doodstream.com' && account.apiKey) {
     return { apiKey: account.apiKey };
   }
@@ -72,6 +76,7 @@ function createDoodstreamOtpCoordinator(options = {}) {
     const key = credentialKey(username, password);
     const existing = activeState(key);
     if (existing?.inFlight) return existing.inFlight;
+    if (existing?.ready && input.requestNewChallenge !== true) return existing.result;
     if (otp && !existing?.pending) {
       return {
         status: 'otp_required',
@@ -87,8 +92,11 @@ function createDoodstreamOtpCoordinator(options = {}) {
     const operation = (async () => {
       try {
         await uploader.login(username, password, otp || undefined);
-        if (states.get(key)?.operationId === operationId) states.delete(key);
-        return { status: 'ok', message: 'Login ok, Upload-Seite bereit' };
+        const result = { status: 'ok', message: 'Login erfolgreich' };
+        if (states.get(key)?.operationId === operationId) {
+          storeState(key, { operationId, uploader, ready: true, expiresAt: now() + challengeTtlMs, result, inFlight: null });
+        }
+        return result;
       } catch (error) {
         if (error?.otpRequired === true) {
           const result = { status: 'otp_required', message: error.message || 'OTP erforderlich' };
@@ -137,7 +145,18 @@ function createDoodstreamOtpCoordinator(options = {}) {
     return operation;
   }
 
-  return { check };
+  async function acquire(input) {
+    const result = await check(input);
+    const session = activeState(credentialKey(input.username, input.password));
+    if (result.status !== 'ok' || !session?.ready) {
+      const error = new Error(result.message || 'OTP erforderlich');
+      error.otpRequired = result.status === 'otp_required';
+      throw error;
+    }
+    return session.uploader.cloneSession();
+  }
+
+  return { check, acquire };
 }
 
 module.exports = { createDoodstreamOtpCoordinator, selectUploadAuth };