Implement centralized logging with RMABLogger

Replaces scattered console statements with a unified RMABLogger across backend API routes and services. Adds LOG_LEVEL-based filtering, job-aware database persistence, and context-based logging. Updates documentation to describe the new logging system and usage patterns. Also documents qBittorrent CSRF header fix

src/app/api/admin/backend-mode/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { ConfigurationService } from '@/lib/services/config.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.BackendMode');
 
 export async function GET(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -18,7 +21,7 @@ export async function GET(request: NextRequest) {
         isAudiobookshelf: backendMode === 'audiobookshelf'
       });
     } catch (error) {
-      console.error('[BackendMode] Failed to get backend mode:', error);
+      logger.error('Failed to get backend mode', { error: error instanceof Error ? error.message : String(error) });
       return NextResponse.json(
         { error: 'Failed to get backend mode' },
         { status: 500 }
@@ -50,7 +53,7 @@ export async function PUT(request: NextRequest) {
         const { clearLibraryServiceCache } = await import('@/lib/services/library');
         clearLibraryServiceCache();
 
-        console.log(`[BackendMode] Backend mode changed to: ${mode}`);
+        logger.info(`Backend mode changed to: ${mode}`);
 
         return NextResponse.json({
           success: true,
@@ -58,7 +61,7 @@ export async function PUT(request: NextRequest) {
           message: `Backend mode set to ${mode}`
         });
       } catch (error) {
-        console.error('[BackendMode] Failed to set backend mode:', error);
+        logger.error('Failed to set backend mode', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to set backend mode' },
           { status: 500 }

src/app/api/admin/bookdate/toggle/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.BookDate.Toggle');
 
 async function handler(req: AuthenticatedRequest) {
   try {
@@ -31,7 +34,7 @@ async function handler(req: AuthenticatedRequest) {
     });
 
   } catch (error: any) {
-    console.error('[BookDate] Admin toggle error:', error);
+    logger.error('Admin toggle error', { error: error instanceof Error ? error.message : String(error) });
     return NextResponse.json(
       { error: error.message || 'Failed to toggle BookDate' },
       { status: 500 }

src/app/api/admin/downloads/active/route.ts

@@ -9,6 +9,9 @@ import { prisma } from '@/lib/db';
 import { getQBittorrentService } from '@/lib/integrations/qbittorrent.service';
 import { getSABnzbdService } from '@/lib/integrations/sabnzbd.service';
 import { getConfigService } from '@/lib/services/config.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Downloads');
 
 export async function GET(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -96,7 +99,7 @@ export async function GET(request: NextRequest) {
           }
         } catch (error) {
           // Download client unavailable or download not found - use defaults
-          console.error(`[Admin] Failed to get download info:`, error);
+          logger.error('Failed to get download info', { error: error instanceof Error ? error.message : String(error) });
         }
 
         return {
@@ -117,7 +120,7 @@ export async function GET(request: NextRequest) {
 
     return NextResponse.json({ downloads: formatted });
       } catch (error) {
-        console.error('[Admin] Failed to fetch active downloads:', error);
+        logger.error('Failed to fetch active downloads', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to fetch active downloads' },
           { status: 500 }

src/app/api/admin/job-status/[id]/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { verifyAccessToken } from '@/lib/utils/jwt';
 import { getJobQueueService } from '@/lib/services/job-queue.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.JobStatus');
 
 /**
  * GET /api/admin/job-status/:id
@@ -30,17 +33,17 @@ export async function GET(
     // Await params in Next.js 15+
     const { id } = await params;
 
-    console.log(`[JobStatus] Fetching status for job ID: ${id}`);
+    logger.debug(`Fetching status for job ID: ${id}`);
 
     const jobQueueService = getJobQueueService();
     const job = await jobQueueService.getJob(id);
 
     if (!job) {
-      console.log(`[JobStatus] Job not found: ${id}`);
+      logger.debug(`Job not found: ${id}`);
       return NextResponse.json({ error: 'Job not found' }, { status: 404 });
     }
 
-    console.log(`[JobStatus] Job ${id} status: ${job.status}, type: ${job.type}`);
+    logger.debug(`Job ${id} status: ${job.status}, type: ${job.type}`);
 
     return NextResponse.json({
       success: true,
@@ -58,7 +61,7 @@ export async function GET(
       },
     });
   } catch (error) {
-    console.error('Failed to get job status:', error);
+    logger.error('Failed to get job status', { error: error instanceof Error ? error.message : String(error) });
     return NextResponse.json(
       {
         error: 'InternalError',

src/app/api/admin/jobs/[id]/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { verifyAccessToken } from '@/lib/utils/jwt';
 import { getSchedulerService } from '@/lib/services/scheduler.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Jobs');
 
 /**
  * PUT /api/admin/jobs/:id
@@ -45,7 +48,7 @@ export async function PUT(
       job,
     });
   } catch (error) {
-    console.error('Failed to update scheduled job:', error);
+    logger.error('Failed to update scheduled job', { error: error instanceof Error ? error.message : String(error) });
     return NextResponse.json(
       {
         error: 'InternalError',
@@ -87,7 +90,7 @@ export async function DELETE(
       message: 'Job deleted successfully',
     });
   } catch (error) {
-    console.error('Failed to delete scheduled job:', error);
+    logger.error('Failed to delete scheduled job', { error: error instanceof Error ? error.message : String(error) });
     return NextResponse.json(
       {
         error: 'InternalError',

src/app/api/admin/jobs/[id]/trigger/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { verifyAccessToken } from '@/lib/utils/jwt';
 import { getSchedulerService } from '@/lib/services/scheduler.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.JobTrigger');
 
 /**
  * POST /api/admin/jobs/:id/trigger
@@ -30,12 +33,12 @@ export async function POST(
     // Await params in Next.js 15+
     const { id } = await params;
 
-    console.log(`[JobTrigger] Triggering scheduled job: ${id}`);
+    logger.info(`Triggering scheduled job: ${id}`);
 
     const schedulerService = getSchedulerService();
     const jobId = await schedulerService.triggerJobNow(id);
 
-    console.log(`[JobTrigger] Job triggered successfully, database job ID: ${jobId}`);
+    logger.info(`Job triggered successfully, database job ID: ${jobId}`);
 
     return NextResponse.json({
       success: true,
@@ -43,7 +46,7 @@ export async function POST(
       message: 'Job triggered successfully',
     });
   } catch (error) {
-    console.error('Failed to trigger job:', error);
+    logger.error('Failed to trigger job', { error: error instanceof Error ? error.message : String(error) });
     return NextResponse.json(
       {
         error: 'InternalError',

src/app/api/admin/jobs/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { verifyAccessToken } from '@/lib/utils/jwt';
 import { getSchedulerService } from '@/lib/services/scheduler.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Jobs');
 
 /**
  * GET /api/admin/jobs
@@ -31,7 +34,7 @@ export async function GET(request: NextRequest) {
       jobs,
     });
   } catch (error) {
-    console.error('Failed to get scheduled jobs:', error);
+    logger.error('Failed to get scheduled jobs', { error: error instanceof Error ? error.message : String(error) });
     return NextResponse.json(
       {
         error: 'InternalError',
@@ -74,7 +77,7 @@ export async function POST(request: NextRequest) {
       job,
     });
   } catch (error) {
-    console.error('Failed to create scheduled job:', error);
+    logger.error('Failed to create scheduled job', { error: error instanceof Error ? error.message : String(error) });
     return NextResponse.json(
       {
         error: 'InternalError',

src/app/api/admin/logs/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Logs');
 
 export async function GET(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -94,7 +97,7 @@ export async function GET(request: NextRequest) {
           },
         });
       } catch (error) {
-        console.error('[Admin] Failed to fetch logs:', error);
+        logger.error('Failed to fetch logs', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to fetch logs' },
           { status: 500 }

src/app/api/admin/metrics/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Metrics');
 
 export async function GET(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -77,7 +80,7 @@ export async function GET(request: NextRequest) {
       systemHealth,
     });
       } catch (error) {
-        console.error('[Admin] Failed to fetch metrics:', error);
+        logger.error('Failed to fetch metrics', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to fetch metrics' },
           { status: 500 }

src/app/api/admin/plex/scan/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin } from '@/lib/middleware/auth';
 import { processScanPlex } from '@/lib/processors/scan-plex.processor';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Plex.Scan');
 
 /**
  * POST /api/admin/plex/scan
@@ -27,7 +30,7 @@ export async function POST(request: NextRequest) {
           ...result,
         });
       } catch (error) {
-        console.error('[API] Plex scan failed:', error);
+        logger.error('Plex scan failed', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             error: 'ScanFailed',

src/app/api/admin/requests/[id]/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { deleteRequest } from '@/lib/services/request-delete.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Requests');
 
 /**
  * DELETE /api/admin/requests/[id]
@@ -62,7 +65,7 @@ export async function DELETE(
           },
         });
       } catch (error) {
-        console.error('[Admin] Failed to delete request:', error);
+        logger.error('Failed to delete request', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             error: 'DeleteError',

src/app/api/admin/requests/recent/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Requests.Recent');
 
 export async function GET(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -61,7 +64,7 @@ export async function GET(request: NextRequest) {
 
     return NextResponse.json({ requests: formatted });
       } catch (error) {
-        console.error('[Admin] Failed to fetch recent requests:', error);
+        logger.error('Failed to fetch recent requests', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to fetch recent requests' },
           { status: 500 }

src/app/api/admin/settings/audiobookshelf/libraries/route.ts

@@ -5,20 +5,23 @@
 
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.ABSLibraries');
 
 export async function GET(request: NextRequest) {
-  console.log('[ABS Libraries] GET request received');
+  logger.debug('GET request received');
   return requireAuth(request, async (req: AuthenticatedRequest) => {
-    console.log('[ABS Libraries] Auth passed, user:', req.user);
+    logger.debug('Auth passed', { user: req.user });
     return requireAdmin(req, async () => {
-      console.log('[ABS Libraries] Admin check passed');
+      logger.debug('Admin check passed');
       try {
         // Use getConfigService like Plex endpoint does
         const { getConfigService } = await import('@/lib/services/config.service');
         const configService = getConfigService();
         const serverUrl = await configService.get('audiobookshelf.server_url');
         const apiToken = await configService.get('audiobookshelf.api_token');
-        console.log('[ABS Libraries] Config loaded:', { hasServerUrl: !!serverUrl, hasApiToken: !!apiToken });
+        logger.debug('Config loaded', { hasServerUrl: !!serverUrl, hasApiToken: !!apiToken });
 
         if (!serverUrl || !apiToken) {
           return NextResponse.json(
@@ -55,7 +58,7 @@ export async function GET(request: NextRequest) {
 
         return NextResponse.json({ libraries });
       } catch (error) {
-        console.error('[Admin] Failed to fetch ABS libraries:', error);
+        logger.error('Failed to fetch ABS libraries', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to fetch libraries' },
           { status: 500 }

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

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { ConfigUpdate } from '@/lib/services/config.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.Audiobookshelf');
 
 export async function PUT(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -41,7 +44,7 @@ export async function PUT(request: NextRequest) {
           message: 'Audiobookshelf settings saved successfully'
         });
       } catch (error) {
-        console.error('[Admin] Failed to save Audiobookshelf settings:', error);
+        logger.error('Failed to save Audiobookshelf settings', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to save settings' },
           { status: 500 }

src/app/api/admin/settings/change-password/route.ts

@@ -7,6 +7,9 @@ import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireLocalAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
 import bcrypt from 'bcrypt';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.ChangePassword');
 
 /**
  * POST /api/admin/settings/change-password
@@ -114,14 +117,14 @@ export async function POST(request: NextRequest) {
           },
         });
 
-        console.log(`[Auth] Local admin password changed successfully for user ${user.id}`);
+        logger.info(`Local admin password changed successfully`, { userId: user.id });
 
         return NextResponse.json({
           success: true,
           message: 'Password changed successfully',
         });
       } catch (error) {
-        console.error('[Auth] Failed to change password:', error);
+        logger.error('Failed to change password', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

src/app/api/admin/settings/download-client/route.ts

@@ -7,6 +7,9 @@ import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
 import { PathMapper } from '@/lib/utils/path-mapper';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.DownloadClient');
 
 export async function PUT(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -135,7 +138,7 @@ export async function PUT(request: NextRequest) {
           create: { key: 'download_client_local_path', value: localPath || '' },
         });
 
-        console.log('[Admin] Download client settings updated');
+        logger.info('Download client settings updated');
 
         // Invalidate download client service singleton to force reload of credentials and URL
         if (type === 'qbittorrent') {
@@ -151,7 +154,7 @@ export async function PUT(request: NextRequest) {
           message: 'Download client settings updated successfully',
         });
       } catch (error) {
-        console.error('[Admin] Failed to update download client settings:', error);
+        logger.error('Failed to update download client settings', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

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

@@ -5,6 +5,9 @@
 
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.Ebook');
 
 export async function PUT(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -73,7 +76,7 @@ export async function PUT(request: NextRequest) {
 
         return NextResponse.json({ success: true });
       } catch (error) {
-        console.error('Failed to save e-book settings:', error);
+        logger.error('Failed to save e-book settings', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to save settings' },
           { status: 500 }

src/app/api/admin/settings/ebook/test-flaresolverr/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { testFlareSolverrConnection } from '@/lib/services/ebook-scraper';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.TestFlareSolverr');
 
 export async function POST(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -31,7 +34,7 @@ export async function POST(request: NextRequest) {
 
         return NextResponse.json(result);
       } catch (error) {
-        console.error('FlareSolverr test failed:', error);
+        logger.error('FlareSolverr test failed', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

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

@@ -5,6 +5,9 @@
 
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.OIDC');
 
 export async function PUT(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -62,7 +65,7 @@ export async function PUT(request: NextRequest) {
           message: 'OIDC settings saved successfully'
         });
       } catch (error) {
-        console.error('[Admin] Failed to save OIDC settings:', error);
+        logger.error('Failed to save OIDC settings', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to save settings' },
           { status: 500 }

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

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.Paths');
 
 export async function PUT(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -65,7 +68,7 @@ export async function PUT(request: NextRequest) {
           },
         });
 
-        console.log('[Admin] Paths settings updated');
+        logger.info('Paths settings updated');
 
         // Invalidate qBittorrent service singleton to force reload of download_dir
         const { invalidateQBittorrentService } = await import('@/lib/integrations/qbittorrent.service');
@@ -76,7 +79,7 @@ export async function PUT(request: NextRequest) {
           message: 'Paths settings updated successfully',
         });
       } catch (error) {
-        console.error('[Admin] Failed to update paths settings:', error);
+        logger.error('Failed to update paths settings', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

src/app/api/admin/settings/plex/libraries/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { getPlexService } from '@/lib/integrations/plex.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.PlexLibraries');
 
 /**
  * GET /api/admin/settings/plex/libraries
@@ -51,7 +54,7 @@ export async function GET(request: NextRequest) {
           })),
         });
       } catch (error) {
-        console.error('[Plex] Failed to fetch libraries:', error);
+        logger.error('Failed to fetch libraries', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

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

@@ -7,6 +7,9 @@ import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
 import { getPlexService } from '@/lib/integrations/plex.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.AdminPlexSettings');
 
 export async function PUT(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -69,24 +72,24 @@ export async function PUT(request: NextRequest) {
             update: { value: serverInfo.info.machineIdentifier },
             create: { key: 'plex_machine_identifier', value: serverInfo.info.machineIdentifier },
           });
-          console.log('[Admin] machineIdentifier updated:', serverInfo.info.machineIdentifier);
+          logger.info('machineIdentifier updated', { machineIdentifier: serverInfo.info.machineIdentifier });
         } else {
-          console.warn('[Admin] Could not fetch machineIdentifier');
+          logger.warn('Could not fetch machineIdentifier');
         }
       }
     } catch (error) {
-      console.error('[Admin] Error fetching machineIdentifier:', error);
+      logger.error('Error fetching machineIdentifier', { error: error instanceof Error ? error.message : String(error) });
       // Don't fail the request if machineIdentifier fetch fails
     }
 
-    console.log('[Admin] Plex settings updated');
+    logger.info('Plex settings updated');
 
     return NextResponse.json({
       success: true,
       message: 'Plex settings updated successfully',
     });
       } catch (error) {
-        console.error('[Admin] Failed to update Plex settings:', error);
+        logger.error('Failed to update Plex settings', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

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

@@ -7,6 +7,9 @@ import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { getProwlarrService } from '@/lib/integrations/prowlarr.service';
 import { getConfigService } from '@/lib/services/config.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.ProwlarrIndexers');
 
 interface SavedIndexerConfig {
   id: number;
@@ -65,7 +68,7 @@ export async function GET(request: NextRequest) {
           flagConfigs,
         });
       } catch (error) {
-        console.error('[Prowlarr] Failed to fetch indexers:', error);
+        logger.error('Failed to fetch indexers', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,
@@ -128,7 +131,7 @@ export async function PUT(request: NextRequest) {
           message: 'Indexer configuration saved',
         });
       } catch (error) {
-        console.error('[Prowlarr] Failed to save indexer config:', error);
+        logger.error('Failed to save indexer config', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

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

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.Prowlarr');
 
 export async function PUT(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -36,14 +39,14 @@ export async function PUT(request: NextRequest) {
           });
         }
 
-        console.log('[Admin] Prowlarr settings updated');
+        logger.info('Prowlarr settings updated');
 
         return NextResponse.json({
           success: true,
           message: 'Prowlarr settings updated successfully',
         });
       } catch (error) {
-        console.error('[Admin] Failed to update Prowlarr settings:', error);
+        logger.error('Failed to update Prowlarr settings', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

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

@@ -5,6 +5,9 @@
 
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.Registration');
 
 export async function PUT(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -26,7 +29,7 @@ export async function PUT(request: NextRequest) {
           message: 'Registration settings saved successfully'
         });
       } catch (error) {
-        console.error('[Admin] Failed to save registration settings:', error);
+        logger.error('Failed to save registration settings', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to save settings' },
           { status: 500 }

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

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings');
 
 export async function GET(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -103,7 +106,7 @@ export async function GET(request: NextRequest) {
 
     return NextResponse.json(settings);
       } catch (error) {
-        console.error('[Admin] Failed to fetch settings:', error);
+        logger.error('Failed to fetch settings', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to fetch settings' },
           { status: 500 }

src/app/api/admin/settings/test-download-client/route.ts

@@ -8,6 +8,9 @@ import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middlewar
 import { prisma } from '@/lib/db';
 import { QBittorrentService } from '@/lib/integrations/qbittorrent.service';
 import { SABnzbdService } from '@/lib/integrations/sabnzbd.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.TestDownloadClient');
 
 export async function POST(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -24,7 +27,7 @@ export async function POST(request: NextRequest) {
           localPath,
         } = await request.json();
 
-        console.log('[TestDownloadClient] Received request:', { type, url, hasUsername: !!username, hasPassword: !!password });
+        logger.debug('Received request', { type, url, hasUsername: !!username, hasPassword: !!password });
 
         if (!type || !url) {
           return NextResponse.json(
@@ -61,7 +64,7 @@ export async function POST(request: NextRequest) {
         let version: string | undefined;
 
         if (type === 'qbittorrent') {
-          console.log('[TestDownloadClient] Testing qBittorrent connection');
+          logger.debug('Testing qBittorrent connection');
           if (!username || !actualPassword) {
             return NextResponse.json(
               { success: false, error: 'Username and password are required for qBittorrent' },
@@ -77,7 +80,7 @@ export async function POST(request: NextRequest) {
             disableSSLVerify || false
           );
         } else if (type === 'sabnzbd') {
-          console.log('[TestDownloadClient] Testing SABnzbd connection');
+          logger.debug('Testing SABnzbd connection');
           if (!actualPassword) {
             return NextResponse.json(
               { success: false, error: 'API key (password) is required for SABnzbd' },
@@ -134,7 +137,7 @@ export async function POST(request: NextRequest) {
           version,
         });
       } catch (error) {
-        console.error('[Admin Settings] Download client test failed:', error);
+        logger.error('Download client test failed', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

src/app/api/admin/settings/test-plex/route.ts

@@ -7,6 +7,9 @@ import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
 import { getPlexService } from '@/lib/integrations/plex.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.TestPlex');
 
 export async function POST(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -70,7 +73,7 @@ export async function POST(request: NextRequest) {
           })),
         });
       } catch (error) {
-        console.error('[Admin Settings] Plex test failed:', error);
+        logger.error('Plex test failed', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

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

@@ -7,6 +7,9 @@ import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
 import { ProwlarrService } from '@/lib/integrations/prowlarr.service';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Settings.TestProwlarr');
 
 export async function POST(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -59,7 +62,7 @@ export async function POST(request: NextRequest) {
           })),
         });
       } catch (error) {
-        console.error('[Admin Settings] Prowlarr test failed:', error);
+        logger.error('Prowlarr test failed', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           {
             success: false,

src/app/api/admin/users/[id]/approve/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Users.Approve');
 
 export async function POST(
   request: NextRequest,
@@ -64,7 +67,7 @@ export async function POST(
           });
         }
       } catch (error) {
-        console.error('[Admin] Failed to approve/reject user:', error);
+        logger.error('Failed to approve/reject user', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to process user approval' },
           { status: 500 }

src/app/api/admin/users/[id]/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Users');
 
 export async function PUT(
   request: NextRequest,
@@ -89,7 +92,7 @@ export async function PUT(
 
         return NextResponse.json({ user: updatedUser });
       } catch (error) {
-        console.error('[Admin] Failed to update user:', error);
+        logger.error('Failed to update user', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to update user' },
           { status: 500 }
@@ -184,7 +187,7 @@ export async function DELETE(
           message: `User "${targetUser.plexUsername}" has been deleted. Their ${targetUser._count.requests} request(s) have been preserved.`
         });
       } catch (error) {
-        console.error('[Admin] Failed to delete user:', error);
+        logger.error('Failed to delete user', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to delete user' },
           { status: 500 }

src/app/api/admin/users/pending/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Users.Pending');
 
 export async function GET(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -30,7 +33,7 @@ export async function GET(request: NextRequest) {
 
         return NextResponse.json({ users: pendingUsers });
       } catch (error) {
-        console.error('[Admin] Failed to fetch pending users:', error);
+        logger.error('Failed to fetch pending users', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to fetch pending users' },
           { status: 500 }

src/app/api/admin/users/route.ts

@@ -6,6 +6,9 @@
 import { NextRequest, NextResponse } from 'next/server';
 import { requireAuth, requireAdmin, AuthenticatedRequest } from '@/lib/middleware/auth';
 import { prisma } from '@/lib/db';
+import { RMABLogger } from '@/lib/utils/logger';
+
+const logger = RMABLogger.create('API.Admin.Users');
 
 export async function GET(request: NextRequest) {
   return requireAuth(request, async (req: AuthenticatedRequest) => {
@@ -40,7 +43,7 @@ export async function GET(request: NextRequest) {
 
         return NextResponse.json({ users });
       } catch (error) {
-        console.error('[Admin] Failed to fetch users:', error);
+        logger.error('Failed to fetch users', { error: error instanceof Error ? error.message : String(error) });
         return NextResponse.json(
           { error: 'Failed to fetch users' },
           { status: 500 }