fix: preserve explicit Doodstream web login and reuse OTP sessions

lib/upload-manager.js

@@ -25,8 +25,9 @@ const DEFAULT_SETTINGS = {
 };
 
 class UploadManager extends EventEmitter {
-  constructor(hosterSettings, globalSettings, accountPools) {
+  constructor(hosterSettings, globalSettings, accountPools, options = {}) {
     super();
+    this.acquireDoodstreamSession = options.acquireDoodstreamSession || null;
     this.hosterSettings = hosterSettings || {};
     this.globalSettings = globalSettings || {};
     this.accountPools = accountPools || {};
@@ -1309,22 +1310,11 @@ class UploadManager extends EventEmitter {
       await voe.login(task.username, task.password);
       return voe.upload(task.file, progressCb, signal, throttle);
     } else if (task.hoster === 'doodstream.com' && task.username) {
-      // Login-path reliability fix: the web-form upload returns the filecode in
-      // an HTML form that comes back empty for large files (doodstream backend
-      // registration timeout). Derive the account's API key from the logged-in
-      // session ONCE per batch and upload via the official API instead — it
-      // returns result[0].filecode directly and has no empty-form failure mode.
-      // Falls back to the web-form upload if no valid key can be derived.
-      const apiKey = await this._resolveDoodstreamApiKey(task);
-      if (apiKey) {
-        this._rotLog('doodstream-via-api', { accountId: task.accountId, fileName: path.basename(task.file) });
-        return uploadFile('doodstream.com', task.file, apiKey, progressCb, signal, throttle, {
-          doodBaseline: await this._getBaseline('doodstream.com', apiKey, signal)
-        });
-      }
       this._rotLog('doodstream-via-web', { accountId: task.accountId, fileName: path.basename(task.file) });
-      const dood = new DoodstreamUploader();
-      await dood.login(task.username, task.password);
+      const dood = this.acquireDoodstreamSession
+        ? await this.acquireDoodstreamSession(task)
+        : new DoodstreamUploader();
+      if (!this.acquireDoodstreamSession) await dood.login(task.username, task.password);
       return dood.upload(task.file, progressCb, signal, throttle);
     } else if (task.hoster === 'clouddrop.cc') {
       const clouddrop = new ClouddropUploader(task.apiKey);