Add RDT-Client support and Prowlarr prompt

Introduce RDT-Client integration and related UI/behavior changes.

- Add RDTClientService extending QBittorrentService with RDT-specific behavior (stale-torrent deletion, postProcess cleanup, no-op categories).
- Register 'rdtclient' in supported client types, display names, and protocol mapping; create RDT client factory in DownloadClientManager.
- Add RDT-Client card to DownloadClientManagement UI and placeholder URL in DownloadClientModal.
- Update qbittorrent service: omit per-torrent savepath/sequential options (favor category/automatic management), make several methods protected, and clean up related comments.
- Make organize-files.processor treat rdtclient as a special-case for cleanup (remove local torrent entries after organize).
- Add prowlarr service singleton invalidation and call it when Prowlarr settings are updated so background jobs pick up new credentials.
- Add confirmation flow when changing Prowlarr URL/API key: new useIndexersSettings logic to detect credential changes, prompt ConfirmModal from IndexersTab, and optionally clear configured indexers on confirmed change.

These changes ensure Real-Debrid-backed qBittorrent-compatible clients are supported correctly and that switching Prowlarr credentials is handled safely.

src/app/admin/settings/page.tsx

@@ -295,6 +295,7 @@ export default function AdminSettings() {
           {activeTab === 'prowlarr' && (
             <IndexersTab
               settings={settings}
+              originalSettings={originalSettings}
               indexers={configuredIndexers}
               flagConfigs={flagConfigs}
               onChange={setSettings}

src/app/admin/settings/tabs/IndexersTab/IndexersTab.tsx

@@ -7,6 +7,7 @@
 
 import React, { useEffect } from 'react';
 import { Button } from '@/components/ui/Button';
+import { ConfirmModal } from '@/components/ui/ConfirmModal';
 import { Input } from '@/components/ui/Input';
 import { IndexerManagement } from '@/components/admin/indexers/IndexerManagement';
 import { FlagConfigRow } from '@/components/admin/FlagConfigRow';
@@ -16,6 +17,7 @@ import type { Settings, SavedIndexerConfig } from '../../lib/types';
 
 interface IndexersTabProps {
   settings: Settings;
+  originalSettings: Settings | null;
   indexers: SavedIndexerConfig[];
   flagConfigs: IndexerFlagConfig[];
   onChange: (settings: Settings) => void;
@@ -27,6 +29,7 @@ interface IndexersTabProps {
 
 export function IndexersTab({
   settings,
+  originalSettings,
   indexers,
   flagConfigs,
   onChange,
@@ -35,11 +38,23 @@ export function IndexersTab({
   onValidationChange,
   onRefreshIndexers,
 }: IndexersTabProps) {
-  const { testing, testResult, testConnection } = useIndexersSettings({
+  const {
+    testing,
+    testResult,
+    testConnection,
+    showConnectionChangeConfirm,
+    confirmConnectionChange,
+    cancelConnectionChange,
+    configuredIndexersCount,
+  } = useIndexersSettings({
     prowlarrUrl: settings.prowlarr.url,
     prowlarrApiKey: settings.prowlarr.apiKey,
+    originalProwlarrUrl: originalSettings?.prowlarr.url ?? '',
+    originalProwlarrApiKey: originalSettings?.prowlarr.apiKey ?? '',
+    configuredIndexersCount: indexers.length,
     onValidationChange,
     onRefreshIndexers,
+    onClearIndexers: () => onIndexersChange([]),
   });
 
   // Auto-load indexers when component mounts if prowlarr is configured
@@ -96,7 +111,7 @@ export function IndexersTab({
           placeholder="Enter API key"
         />
         <p className="text-sm text-gray-500 dark:text-gray-400 mt-1">
-          Found in Prowlarr Settings → General → Security → API Key
+          Found in Prowlarr Settings &rarr; General &rarr; Security &rarr; API Key
         </p>
       </div>
 
@@ -178,6 +193,19 @@ export function IndexersTab({
           </p>
         )}
       </div>
+
+      {/* Confirmation modal for Prowlarr connection change */}
+      <ConfirmModal
+        isOpen={showConnectionChangeConfirm}
+        onClose={cancelConnectionChange}
+        onConfirm={confirmConnectionChange}
+        title="Prowlarr Connection Change"
+        message={`Changing your Prowlarr connection will remove your ${configuredIndexersCount} configured indexer${configuredIndexersCount === 1 ? '' : 's'}. Indexer IDs are specific to each Prowlarr instance, so existing configurations cannot be preserved. You will need to re-add indexers from the new instance after saving.`}
+        confirmText="Continue"
+        cancelText="Cancel"
+        variant="danger"
+        isLoading={testing}
+      />
     </div>
   );
 }

src/app/admin/settings/tabs/IndexersTab/useIndexersSettings.ts

@@ -5,30 +5,50 @@
 
 'use client';
 
-import { useState } from 'react';
+import { useState, useCallback } from 'react';
 import { fetchWithAuth } from '@/lib/utils/api';
 import type { TestResult } from '../../lib/types';
 
 interface UseIndexersSettingsProps {
   prowlarrUrl: string;
   prowlarrApiKey: string;
+  originalProwlarrUrl: string;
+  originalProwlarrApiKey: string;
+  configuredIndexersCount: number;
   onValidationChange: (isValid: boolean) => void;
   onRefreshIndexers?: () => Promise<void>;
+  onClearIndexers: () => void;
 }
 
 export function useIndexersSettings({
   prowlarrUrl,
   prowlarrApiKey,
+  originalProwlarrUrl,
+  originalProwlarrApiKey,
+  configuredIndexersCount,
   onValidationChange,
   onRefreshIndexers,
+  onClearIndexers,
 }: UseIndexersSettingsProps) {
   const [testing, setTesting] = useState(false);
   const [testResult, setTestResult] = useState<TestResult | null>(null);
+  const [showConnectionChangeConfirm, setShowConnectionChangeConfirm] = useState(false);
 
   /**
-   * Test Prowlarr connection
+   * Detect if the Prowlarr URL or API key has changed from the saved values.
+   * A masked API key (starting with dots) means the user hasn't touched it.
    */
-  const testConnection = async () => {
+  const hasConnectionChanged = useCallback((): boolean => {
+    const urlChanged = prowlarrUrl.trim() !== originalProwlarrUrl.trim();
+    const apiKeyChanged = !prowlarrApiKey.startsWith('••••') &&
+      prowlarrApiKey !== originalProwlarrApiKey;
+    return urlChanged || apiKeyChanged;
+  }, [prowlarrUrl, prowlarrApiKey, originalProwlarrUrl, originalProwlarrApiKey]);
+
+  /**
+   * Execute the actual Prowlarr connection test
+   */
+  const executeTest = async (shouldClearIndexers: boolean) => {
     setTesting(true);
     setTestResult(null);
 
@@ -46,14 +66,23 @@ export function useIndexersSettings({
 
       if (data.success) {
         onValidationChange(true);
-        setTestResult({
-          success: true,
-          message: `Connected to Prowlarr. Found ${data.indexers?.length || 0} indexers`,
-        });
 
-        // Refresh indexers from database if callback provided
+        if (shouldClearIndexers) {
-        if (onRefreshIndexers) {
+          onClearIndexers();
-          await onRefreshIndexers();
+          setTestResult({
+            success: true,
+            message: `Connected to Prowlarr. Found ${data.indexers?.length || 0} indexers. Previous indexer configurations have been removed — please re-add indexers from the new instance.`,
+          });
+        } else {
+          setTestResult({
+            success: true,
+            message: `Connected to Prowlarr. Found ${data.indexers?.length || 0} indexers`,
+          });
+
+          // Refresh indexers from database if callback provided
+          if (onRefreshIndexers) {
+            await onRefreshIndexers();
+          }
         }
       } else {
         onValidationChange(false);
@@ -74,9 +103,41 @@ export function useIndexersSettings({
     }
   };
 
+  /**
+   * Handle test connection click — shows confirmation if credentials changed
+   * and there are existing configured indexers.
+   */
+  const testConnection = async () => {
+    if (hasConnectionChanged() && configuredIndexersCount > 0) {
+      setShowConnectionChangeConfirm(true);
+      return;
+    }
+
+    await executeTest(false);
+  };
+
+  /**
+   * User confirmed the credential change — proceed with test and clear indexers on success
+   */
+  const confirmConnectionChange = async () => {
+    setShowConnectionChangeConfirm(false);
+    await executeTest(true);
+  };
+
+  /**
+   * User cancelled the credential change confirmation
+   */
+  const cancelConnectionChange = () => {
+    setShowConnectionChangeConfirm(false);
+  };
+
   return {
     testing,
     testResult,
     testConnection,
+    showConnectionChangeConfirm,
+    confirmConnectionChange,
+    cancelConnectionChange,
+    configuredIndexersCount,
   };
 }

src/app/api/admin/settings/prowlarr/route.ts

@@ -7,6 +7,7 @@ import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
 import { getEncryptionService } from '@/lib/services/encryption.service';
+import { invalidateProwlarrService } from '@/lib/integrations/prowlarr.service';
 import { RMABLogger } from '@/lib/utils/logger';
 
 const logger = RMABLogger.create('API.Admin.Settings.Prowlarr');
@@ -42,6 +43,9 @@ export async function PUT(request: NextRequest) {
           });
         }
 
+        // Invalidate cached singleton so background jobs use new credentials
+        invalidateProwlarrService();
+
         logger.info('Prowlarr settings updated');
 
         return NextResponse.json({

src/components/admin/download-clients/DownloadClientManagement.tsx

@@ -253,7 +253,7 @@ export function DownloadClientManagement({
         <h3 className="text-lg font-semibold text-gray-900 dark:text-gray-100 mb-3">
           Add Download Client
         </h3>
-        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-4 gap-4">
+        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-5 gap-4">
           {/* qBittorrent Card */}
           <div className={`bg-white dark:bg-gray-800 rounded-lg shadow-md border border-gray-200 dark:border-gray-700 p-6${hasTorrentClient ? ' opacity-50' : ''}`}>
             <div className="flex items-start justify-between mb-3">
@@ -316,6 +316,37 @@ export function DownloadClientManagement({
             )}
           </div>
 
+          {/* RDT-Client Card */}
+          <div className={`bg-white dark:bg-gray-800 rounded-lg shadow-md border border-gray-200 dark:border-gray-700 p-6${hasTorrentClient ? ' opacity-50' : ''}`}>
+            <div className="flex items-start justify-between mb-3">
+              <div>
+                <h4 className="text-base font-semibold text-gray-900 dark:text-gray-100 mb-1">
+                  RDT-Client
+                </h4>
+                <p className="text-sm text-gray-600 dark:text-gray-400">
+                  Torrent / Debrid
+                </p>
+              </div>
+              <span className="inline-block text-xs px-2 py-1 rounded bg-teal-100 dark:bg-teal-900/30 text-teal-700 dark:text-teal-300 font-medium">
+                Torrent
+              </span>
+            </div>
+            {hasTorrentClient ? (
+              <div className="text-sm text-gray-500 dark:text-gray-400">
+                Protocol already configured
+              </div>
+            ) : (
+              <Button
+                onClick={() => handleAddClient('rdtclient')}
+                variant="primary"
+                size="sm"
+                disabled={loading}
+              >
+                Add RDT-Client
+              </Button>
+            )}
+          </div>
+
           {/* SABnzbd Card */}
           <div className={`bg-white dark:bg-gray-800 rounded-lg shadow-md border border-gray-200 dark:border-gray-700 p-6${hasUsenetClient ? ' opacity-50' : ''}`}>
             <div className="flex items-start justify-between mb-3">

src/components/admin/download-clients/DownloadClientModal.tsx

@@ -338,7 +338,7 @@ export function DownloadClientModal({
           <Input
             value={url}
             onChange={(e) => setUrl(e.target.value)}
-            placeholder={type === 'transmission' ? 'http://localhost:9091' : type === 'qbittorrent' ? 'http://localhost:8080' : type === 'nzbget' ? 'http://localhost:6789' : 'http://localhost:8081'}
+            placeholder={type === 'rdtclient' ? 'http://localhost:6500' : type === 'transmission' ? 'http://localhost:9091' : type === 'qbittorrent' ? 'http://localhost:8080' : type === 'nzbget' ? 'http://localhost:6789' : 'http://localhost:8081'}
             error={errors.url}
           />
           <p className="mt-1 text-xs text-gray-500 dark:text-gray-400">

src/lib/integrations/prowlarr.service.ts

@@ -640,6 +640,18 @@ export class ProwlarrService {
 // Singleton instance
 let prowlarrService: ProwlarrService | null = null;
 
+/**
+ * Invalidate the cached ProwlarrService singleton.
+ * Must be called after updating Prowlarr URL or API key so that
+ * background jobs (search, RSS monitor, etc.) pick up the new credentials.
+ */
+export function invalidateProwlarrService(): void {
+  if (prowlarrService) {
+    logger.info('Prowlarr service singleton invalidated — will reconnect with new credentials on next use');
+  }
+  prowlarrService = null;
+}
+
 export async function getProwlarrService(): Promise<ProwlarrService> {
   if (!prowlarrService) {
     // Get configuration from database

src/lib/integrations/qbittorrent.service.ts

@@ -27,12 +27,10 @@ const parseTorrent = (parseTorrentModule as any).default || parseTorrentModule;
 const logger = RMABLogger.create('QBittorrent');
 
 export interface AddTorrentOptions {
-  savePath?: string;
   category?: string;
   tags?: string[];
   paused?: boolean;
   skipChecking?: boolean;
-  sequentialDownload?: boolean;
 }
 
 export interface TorrentInfo {
@@ -276,7 +274,7 @@ export class QBittorrentService implements IDownloadClient {
   /**
    * Add magnet link - hash is extractable from URI (deterministic)
    */
-  private async addMagnetLink(
+  protected async addMagnetLink(
     magnetUrl: string,
     category: string,
     options?: AddTorrentOptions
@@ -299,20 +297,18 @@ export class QBittorrentService implements IDownloadClient {
       // Torrent doesn't exist, continue with adding
     }
 
-    // Apply reverse path mapping (local → remote) to savepath
-    const localSavePath = options?.savePath || this.defaultSavePath;
-    const remoteSavePath = PathMapper.reverseTransform(localSavePath, this.pathMappingConfig);
-
     // Upload via 'urls' parameter
-    // Set ratioLimit and seedingTimeLimit to -1 (unlimited) so qBittorrent's
+    // Note: savepath is intentionally omitted — the category (managed by ensureCategory)
+    // defines the save path. Omitting per-torrent savepath allows qBittorrent to use
+    // Automatic Torrent Management, respecting the user's "incomplete downloads" temp folder.
+    // sequentialDownload is also omitted — left to qBittorrent's own settings.
+    // ratioLimit and seedingTimeLimit are set to -1 (unlimited) so qBittorrent's
     // global seeding rules don't remove the torrent prematurely.
     // RMAB manages torrent lifecycle via the cleanup-seeded-torrents processor.
     const form = new URLSearchParams({
       urls: magnetUrl,
-      savepath: remoteSavePath,
       category,
       paused: options?.paused ? 'true' : 'false',
-      sequentialDownload: (options?.sequentialDownload !== false).toString(),
       ratioLimit: '-1',
       seedingTimeLimit: '-1',
     });
@@ -341,7 +337,7 @@ export class QBittorrentService implements IDownloadClient {
   /**
    * Add .torrent file - download, parse, extract hash, upload content (deterministic)
    */
-  private async addTorrentFile(
+  protected async addTorrentFile(
     torrentUrl: string,
     category: string,
     options?: AddTorrentOptions
@@ -446,11 +442,13 @@ export class QBittorrentService implements IDownloadClient {
       // Torrent doesn't exist, continue with adding
     }
 
-    // Apply reverse path mapping (local → remote) to savepath
-    const localSavePath = options?.savePath || this.defaultSavePath;
-    const remoteSavePath = PathMapper.reverseTransform(localSavePath, this.pathMappingConfig);
-
     // Upload .torrent file content via multipart/form-data
+    // Note: savepath is intentionally omitted — the category (managed by ensureCategory)
+    // defines the save path. Omitting per-torrent savepath allows qBittorrent to use
+    // Automatic Torrent Management, respecting the user's "incomplete downloads" temp folder.
+    // sequentialDownload is also omitted — left to qBittorrent's own settings.
+    // ratioLimit and seedingTimeLimit override qBittorrent's global seeding rules —
+    // RMAB manages torrent lifecycle via the cleanup-seeded-torrents processor.
     const formData = new FormData();
 
     const filename = parsedTorrent.name ? `${parsedTorrent.name}.torrent` : 'torrent.torrent';
@@ -458,11 +456,8 @@ export class QBittorrentService implements IDownloadClient {
       filename,
       contentType: 'application/x-bittorrent',
     });
-    formData.append('savepath', remoteSavePath);
     formData.append('category', category);
     formData.append('paused', options?.paused ? 'true' : 'false');
-    formData.append('sequentialDownload', (options?.sequentialDownload !== false).toString());
-    // Override qBittorrent's global seeding rules — RMAB manages torrent lifecycle
     formData.append('ratioLimit', '-1');
     formData.append('seedingTimeLimit', '-1');
 
@@ -494,7 +489,7 @@ export class QBittorrentService implements IDownloadClient {
    * Checks existing categories first, then creates or updates as needed
    * Applies reverse path mapping (local → remote) for remote seedbox scenarios
    */
-  private async ensureCategory(category: string): Promise<void> {
+  protected async ensureCategory(category: string): Promise<void> {
     if (!this.cookie) {
       await this.login();
     }
@@ -1013,7 +1008,6 @@ export class QBittorrentService implements IDownloadClient {
       category: options?.category,
       paused: options?.paused,
       tags: ['audiobook'],
-      sequentialDownload: true,
     });
   }
 
@@ -1081,7 +1075,7 @@ export class QBittorrentService implements IDownloadClient {
   /**
    * Map a TorrentInfo object to the unified DownloadInfo format.
    */
-  private mapTorrentToDownloadInfo(torrent: TorrentInfo): DownloadInfo {
+  protected mapTorrentToDownloadInfo(torrent: TorrentInfo): DownloadInfo {
     return {
       id: torrent.hash,
       name: torrent.name,
@@ -1194,7 +1188,7 @@ export class QBittorrentService implements IDownloadClient {
   /**
    * Extract info_hash from magnet link
    */
-  private extractHashFromMagnet(magnetUrl: string): string | null {
+  protected extractHashFromMagnet(magnetUrl: string): string | null {
     // Extract hash from magnet:?xt=urn:btih:HASH
     const match = magnetUrl.match(/xt=urn:btih:([a-fA-F0-9]{40}|[a-zA-Z0-9]{32})/i);
     if (match) {

src/lib/integrations/rdtclient.service.ts

@@ -0,0 +1,105 @@
+/**
+ * Component: RDT-Client Integration Service
+ * Documentation: documentation/phase3/download-clients.md
+ *
+ * RDT-Client is a Real-Debrid torrent proxy that emulates the qBittorrent API.
+ * Extends QBittorrentService and overrides behavioral differences:
+ * - Duplicate detection: deletes stale torrent before adding fresh (no false matches)
+ * - postProcess: removes torrent entry from client after files are organized
+ * - ensureCategory: no-op (RDT-Client doesn't support categories)
+ */
+
+import { RMABLogger } from '../utils/logger';
+import { DownloadClientType } from '../interfaces/download-client.interface';
+import { QBittorrentService, AddTorrentOptions } from './qbittorrent.service';
+
+const logger = RMABLogger.create('RDTClient');
+
+export class RDTClientService extends QBittorrentService {
+  override readonly clientType: DownloadClientType = 'rdtclient';
+
+  /**
+   * Override: Delete any existing torrent with the same hash before adding.
+   * RDT-Client can have stale entries from previous requests that cause
+   * false duplicate detection — always start fresh.
+   */
+  protected override async addMagnetLink(
+    magnetUrl: string,
+    category: string,
+    options?: AddTorrentOptions
+  ): Promise<string> {
+    const infoHash = this.extractHashFromMagnet(magnetUrl);
+
+    if (infoHash) {
+      await this.deleteStaleIfExists(infoHash);
+    }
+
+    return super.addMagnetLink(magnetUrl, category, options);
+  }
+
+  /**
+   * Override: Delete any existing torrent with the same hash before adding.
+   * Same rationale as addMagnetLink — prevent false duplicate short-circuits.
+   */
+  protected override async addTorrentFile(
+    torrentUrl: string,
+    category: string,
+    options?: AddTorrentOptions
+  ): Promise<string> {
+    // We can't pre-extract the hash from a .torrent URL without downloading it,
+    // so we let the parent handle the full flow. The parent's duplicate check
+    // calls getTorrent which will find any stale entry — but the parent
+    // short-circuits on duplicates. To handle this, we override addTorrentFile
+    // to intercept after the parent downloads and parses the torrent.
+    //
+    // The parent's addTorrentFile downloads the .torrent, parses it, checks for
+    // duplicates, then uploads. Since we can't hook into the middle of that flow
+    // without duplicating the download logic, we accept that .torrent file adds
+    // may encounter a stale duplicate. The primary use case (magnet links from
+    // indexers) is handled by the addMagnetLink override above.
+    //
+    // For .torrent files, the parent will return the existing hash if a duplicate
+    // is found. The postProcess cleanup after organize will still clean it up.
+    return super.addTorrentFile(torrentUrl, category, options);
+  }
+
+  /**
+   * Override: Remove torrent entry from RDT-Client after files are organized.
+   * Unlike qBittorrent (which seeds), RDT-Client torrents should be cleaned up
+   * immediately — Real-Debrid handles seeding on their infrastructure.
+   */
+  override async postProcess(id: string): Promise<void> {
+    try {
+      logger.info(`Removing torrent ${id} from RDT-Client (post-organize cleanup)`);
+      await this.deleteTorrent(id, false);
+      logger.info(`Successfully removed torrent ${id} from RDT-Client`);
+    } catch (error) {
+      // Non-fatal: torrent may already have been removed
+      logger.warn(
+        `Failed to remove torrent ${id} from RDT-Client: ${error instanceof Error ? error.message : String(error)}`
+      );
+    }
+  }
+
+  /**
+   * Override: No-op. RDT-Client doesn't support qBittorrent categories.
+   * Avoids 404 errors that appear in logs when the parent tries to create/update categories.
+   */
+  protected override async ensureCategory(_category: string): Promise<void> {
+    // No-op: RDT-Client does not support categories
+  }
+
+  /**
+   * Delete a stale torrent if it exists, so a fresh add doesn't short-circuit.
+   */
+  private async deleteStaleIfExists(hash: string): Promise<void> {
+    try {
+      await this.getTorrent(hash);
+      // If we get here, torrent exists — delete it
+      logger.info(`Deleting stale torrent ${hash} from RDT-Client before fresh add`);
+      await this.deleteTorrent(hash, false);
+    } catch {
+      // Torrent doesn't exist — nothing to clean up
+    }
+  }
+}

src/lib/interfaces/download-client.interface.ts

@@ -11,7 +11,7 @@
 // =========================================================================
 
 /** Supported download client types — single source of truth */
-export const SUPPORTED_CLIENT_TYPES = ['qbittorrent', 'sabnzbd', 'nzbget', 'transmission'] as const;
+export const SUPPORTED_CLIENT_TYPES = ['qbittorrent', 'sabnzbd', 'nzbget', 'transmission', 'rdtclient'] as const;
 
 /** Identifies the specific download client software */
 export type DownloadClientType = (typeof SUPPORTED_CLIENT_TYPES)[number];
@@ -22,6 +22,7 @@ export const CLIENT_DISPLAY_NAMES: Record<DownloadClientType, string> = {
   sabnzbd: 'SABnzbd',
   nzbget: 'NZBGet',
   transmission: 'Transmission',
+  rdtclient: 'RDT-Client',
 };
 
 /** Get display name for a client type, falling back to the raw type */
@@ -38,6 +39,7 @@ export const CLIENT_PROTOCOL_MAP: Record<DownloadClientType, ProtocolType> = {
   sabnzbd: 'usenet',
   nzbget: 'usenet',
   transmission: 'torrent',
+  rdtclient: 'torrent',
 };
 
 /** Unified download status across all clients */

src/lib/processors/organize-files.processor.ts

@@ -864,8 +864,13 @@ async function cleanupDownloadAfterOrganize(
       removeAfterProcessing: indexer?.removeAfterProcessing ?? 'undefined',
     });
 
-    // Check if this is a non-torrent indexer with cleanup enabled
+    // Check if this is a non-torrent indexer with cleanup enabled.
-    if (!indexer || indexer.protocol?.toLowerCase() === 'torrent' || !indexer.removeAfterProcessing) {
+    // RDT-Client is an exception: even though it's torrent protocol, it needs cleanup
+    // because Real-Debrid handles seeding — local torrent entries should be removed.
+    const isRDTClient = downloadHistory.downloadClient === 'rdtclient';
+    const isTorrentProtocol = indexer?.protocol?.toLowerCase() === 'torrent';
+
+    if (!indexer || (!isRDTClient && isTorrentProtocol) || !indexer.removeAfterProcessing) {
       return;
     }
 

src/lib/services/download-client-manager.service.ts

@@ -16,6 +16,7 @@ import { QBittorrentService } from '@/lib/integrations/qbittorrent.service';
 import { SABnzbdService } from '@/lib/integrations/sabnzbd.service';
 import { NZBGetService } from '@/lib/integrations/nzbget.service';
 import { TransmissionService } from '@/lib/integrations/transmission.service';
+import { RDTClientService } from '@/lib/integrations/rdtclient.service';
 import { PathMappingConfig } from '@/lib/utils/path-mapper';
 import { IDownloadClient, DownloadClientType, ProtocolType, CLIENT_PROTOCOL_MAP, getClientDisplayName } from '@/lib/interfaces/download-client.interface';
 
@@ -193,6 +194,8 @@ export class DownloadClientManager {
         return this.createNZBGetService(config, downloadDir);
       case 'transmission':
         return this.createTransmissionService(config, downloadDir);
+      case 'rdtclient':
+        return this.createRDTClientService(config, downloadDir);
       default:
         throw new Error(`Unsupported download client type: ${config.type}`);
     }
@@ -335,6 +338,29 @@ export class DownloadClientManager {
     );
   }
 
+  /**
+   * Create RDT-Client service instance (same constructor as qBittorrent — identical API)
+   */
+  private createRDTClientService(config: DownloadClientConfig, downloadDir: string): RDTClientService {
+    const pathMapping: PathMappingConfig | undefined = config.remotePathMappingEnabled && config.remotePath && config.localPath
+      ? {
+          enabled: true,
+          remotePath: config.remotePath,
+          localPath: config.localPath,
+        }
+      : undefined;
+
+    return new RDTClientService(
+      config.url,
+      config.username || '',
+      config.password || '',
+      downloadDir,
+      config.category || 'readmeabook',
+      config.disableSSLVerify,
+      pathMapping
+    );
+  }
+
   /**
    * Migrate legacy single-client config to new multi-client format
    */