chore: apply ESLint auto-fix across entire backend

Reformats code style (line breaks, indentation, type annotations)
without changing logic. Also includes minor feature additions bundled
in the same lint run (stats service, user-settings groups, agrarmonitor
polling improvements).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

paperless-backend/src/settings/settings.controller.spec.ts

@@ -35,10 +35,16 @@ describe('SettingsController', () => {
       providers: [
         { provide: getRepositoryToken(DocumentType), useValue: docTypeRepo },
         { provide: getRepositoryToken(Postprocessing), useValue: ppRepo },
-        { provide: getRepositoryToken(PostprocessingAction), useValue: ppActionRepo },
+        {
+          provide: getRepositoryToken(PostprocessingAction),
+          useValue: ppActionRepo,
+        },
         { provide: getRepositoryToken(UserClient), useValue: userClientRepo },
         { provide: getRepositoryToken(Client), useValue: makeRepo() },
-        { provide: getRepositoryToken(Setting), useValue: makeRepo([{ ID: 1, Typ: 1, Wert: 'v' }]) },
+        {
+          provide: getRepositoryToken(Setting),
+          useValue: makeRepo([{ ID: 1, Typ: 1, Wert: 'v' }]),
+        },
       ],
     }).compile();
 
@@ -58,7 +64,9 @@ describe('SettingsController', () => {
 
   it('updateDocumentType calls update + findOneByOrFail', async () => {
     await controller.updateDocumentType('1', { TitelTemplate: 'New' });
-    expect(docTypeRepo.update).toHaveBeenCalledWith(1, { TitelTemplate: 'New' });
+    expect(docTypeRepo.update).toHaveBeenCalledWith(1, {
+      TitelTemplate: 'New',
+    });
     expect(docTypeRepo.findOneByOrFail).toHaveBeenCalledWith({ Id: 1 });
   });
 
@@ -70,7 +78,9 @@ describe('SettingsController', () => {
   });
 
   it('createPostprocessingRule creates and saves', async () => {
-    const result = await controller.createPostprocessingRule({ Name: 'New' } as any);
+    const result = await controller.createPostprocessingRule({
+      Name: 'New',
+    } as any);
     expect(ppRepo.create).toHaveBeenCalledWith({ Name: 'New' });
     expect(ppRepo.save).toHaveBeenCalled();
     expect(result).toHaveProperty('Id', 99);
@@ -89,7 +99,10 @@ describe('SettingsController', () => {
   });
 
   it('createUserClient creates', async () => {
-    const result = await controller.createUserClient({ UserId: 'u2', ClientId: 3 } as any);
+    const result = await controller.createUserClient({
+      UserId: 'u2',
+      ClientId: 3,
+    } as any);
     expect(userClientRepo.create).toHaveBeenCalled();
     expect(result).toHaveProperty('Id', 99);
   });