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/user-settings/user-settings.service.ts

@@ -47,7 +47,10 @@ export class UserSettingsService {
     if (!this.encKey) return plaintext;
     const iv = crypto.randomBytes(16);
     const cipher = crypto.createCipheriv(ALGORITHM, this.encKey, iv);
-    const encrypted = Buffer.concat([cipher.update(plaintext, 'utf8'), cipher.final()]);
+    const encrypted = Buffer.concat([
+      cipher.update(plaintext, 'utf8'),
+      cipher.final(),
+    ]);
     const authTag = cipher.getAuthTag();
     return `enc:${iv.toString('hex')}:${authTag.toString('hex')}:${encrypted.toString('hex')}`;
   }
@@ -62,10 +65,18 @@ export class UserSettingsService {
     const encrypted = Buffer.from(encryptedHex, 'hex');
     const decipher = crypto.createDecipheriv(ALGORITHM, this.encKey, iv);
     decipher.setAuthTag(authTag);
-    return Buffer.concat([decipher.update(encrypted), decipher.final()]).toString('utf8');
+    return Buffer.concat([
+      decipher.update(encrypted),
+      decipher.final(),
+    ]).toString('utf8');
   }
 
-  async getSettings(userId: string, email?: string, preferredUsername?: string, groups?: string[]): Promise<UserSettingsDto> {
+  async getSettings(
+    userId: string,
+    email?: string,
+    preferredUsername?: string,
+    groups?: string[],
+  ): Promise<UserSettingsDto> {
     let entity = await this.repo.findOne({ where: { UserId: userId } });
     if (email || preferredUsername || groups) {
       if (!entity) {
@@ -107,15 +118,24 @@ export class UserSettingsService {
     if (data.smtpPort !== undefined) entity.SmtpPort = data.smtpPort;
     if (data.smtpSecure !== undefined) entity.SmtpSecure = data.smtpSecure;
     if (data.smtpUser !== undefined) entity.SmtpUser = data.smtpUser;
-    if (data.smtpPass !== undefined && data.smtpPass !== null && data.smtpPass !== '') {
+    if (
+      data.smtpPass !== undefined &&
+      data.smtpPass !== null &&
+      data.smtpPass !== ''
+    ) {
       entity.SmtpPass = this.encrypt(data.smtpPass);
     }
     if (data.smtpFrom !== undefined) entity.SmtpFrom = data.smtpFrom;
-    if (data.smtpFromName !== undefined) entity.SmtpFromName = data.smtpFromName;
-    if (data.mailSignatureHtml !== undefined) entity.MailSignatureHtml = data.mailSignatureHtml;
-    if (data.defaultLabelTemplateId !== undefined) entity.DefaultLabelTemplateId = data.defaultLabelTemplateId;
-    if (data.emailRecipientHistory !== undefined) entity.EmailRecipientHistory = data.emailRecipientHistory;
-    if (data.dailyDigestEnabled !== undefined) entity.DailyDigestEnabled = data.dailyDigestEnabled;
+    if (data.smtpFromName !== undefined)
+      entity.SmtpFromName = data.smtpFromName;
+    if (data.mailSignatureHtml !== undefined)
+      entity.MailSignatureHtml = data.mailSignatureHtml;
+    if (data.defaultLabelTemplateId !== undefined)
+      entity.DefaultLabelTemplateId = data.defaultLabelTemplateId;
+    if (data.emailRecipientHistory !== undefined)
+      entity.EmailRecipientHistory = data.emailRecipientHistory;
+    if (data.dailyDigestEnabled !== undefined)
+      entity.DailyDigestEnabled = data.dailyDigestEnabled;
     if (email) entity.UserEmail = email;
     if (preferredUsername) entity.UserPreferredUsername = preferredUsername;
     if (groups) entity.UserGroups = groups;
@@ -146,12 +166,19 @@ export class UserSettingsService {
   }
 
   async getSmtpConfig(userId: string): Promise<{
-    host: string; port: number; secure: boolean; user: string; pass: string; from: string;
+    host: string;
+    port: number;
+    secure: boolean;
+    user: string;
+    pass: string;
+    from: string;
   } | null> {
     const entity = await this.repo.findOne({ where: { UserId: userId } });
     if (!entity?.SmtpHost || !entity?.SmtpPass) return null;
     const fromEmail = entity.SmtpFrom ?? entity.SmtpUser ?? '';
-    const from = entity.SmtpFromName ? `"${entity.SmtpFromName}" <${fromEmail}>` : fromEmail;
+    const from = entity.SmtpFromName
+      ? `"${entity.SmtpFromName}" <${fromEmail}>`
+      : fromEmail;
     return {
       host: entity.SmtpHost,
       port: entity.SmtpPort ?? 587,
@@ -163,21 +190,34 @@ export class UserSettingsService {
   }
 
   async findAllDigestSubscribers(): Promise<UserSettings[]> {
-    return this.repo.find({
-      where: { DailyDigestEnabled: true },
-    }).then(rows => rows.filter(r => !!r.UserEmail));
+    return this.repo
+      .find({
+        where: { DailyDigestEnabled: true },
+      })
+      .then((rows) => rows.filter((r) => !!r.UserEmail));
   }
 
-  async getAvailableSenders(userId: string): Promise<{ id: string; label: string }[]> {
-    const defaultEmail = this.configService.get<string>('SMTP_FROM', 'paperless@localhost');
+  async getAvailableSenders(
+    userId: string,
+  ): Promise<{ id: string; label: string }[]> {
+    const defaultEmail = this.configService.get<string>(
+      'SMTP_FROM',
+      'paperless@localhost',
+    );
     const defaultName = this.configService.get<string>('SMTP_FROM_NAME', '');
-    const defaultLabel = defaultName ? `${defaultName} <${defaultEmail}>` : defaultEmail;
-    const senders: { id: string; label: string }[] = [{ id: 'default', label: defaultLabel }];
+    const defaultLabel = defaultName
+      ? `${defaultName} <${defaultEmail}>`
+      : defaultEmail;
+    const senders: { id: string; label: string }[] = [
+      { id: 'default', label: defaultLabel },
+    ];
 
     const entity = await this.repo.findOne({ where: { UserId: userId } });
     if (entity?.SmtpHost && entity?.SmtpPass) {
       const userEmail = entity.SmtpFrom ?? entity.SmtpUser ?? '';
-      const userLabel = entity.SmtpFromName ? `${entity.SmtpFromName} <${userEmail}>` : userEmail;
+      const userLabel = entity.SmtpFromName
+        ? `${entity.SmtpFromName} <${userEmail}>`
+        : userEmail;
       senders.push({ id: 'user', label: userLabel });
     }
 
@@ -190,7 +230,7 @@ export class UserSettingsService {
       smtpPort: entity?.SmtpPort ?? null,
       smtpSecure: entity?.SmtpSecure ?? false,
       smtpUser: entity?.SmtpUser ?? null,
-      smtpPassSet: !!(entity?.SmtpPass),
+      smtpPassSet: !!entity?.SmtpPass,
       smtpFrom: entity?.SmtpFrom ?? null,
       smtpFromName: entity?.SmtpFromName ?? null,
       mailSignatureHtml: entity?.MailSignatureHtml ?? null,