feat: implement multi-segment PDF email attachments and add PWA mobile icons

paperless-backend/src/inbox/inbox.controller.ts

@@ -200,7 +200,7 @@ export class InboxController {
       subject: string;
       body: string;
       html?: string;
-      filename?: string;
+      segments: { pages: number[]; filename: string }[];
     },
     @Request() req: any,
   ): Promise<void> {

paperless-backend/src/inbox/inbox.service.ts

@@ -15,7 +15,7 @@ import {
   type InboxSource,
 } from '../database/entities/inbox-document.entity';
 import { MailService } from '../postprocessing/mail.service';
-import { applyEditsToTemp, cleanupTemp, buildSegmentBuffer } from '../inbox-postprocessor/edit-applier';
+import { buildSegmentBuffer } from '../inbox-postprocessor/edit-applier';
 
 export interface InboxFile {
   id: string;
@@ -273,24 +273,27 @@ export class InboxService {
       subject: string;
       body: string;
       html?: string;
-      filename?: string;
+      segments: { pages: number[]; filename: string }[];
     },
   ): Promise<void> {
     const { doc, pdfPath } = await this.resolveDocument(id, preferredUsername);
-    let tmpPath: string | null = null;
-    try {
-      tmpPath = await applyEditsToTemp(doc, pdfPath);
-      const content = await fs.readFile(tmpPath);
-      const filename = opts.filename ? `${opts.filename}.pdf` : doc.OriginalName;
-      await this.mailService.sendMail({
-        to: opts.to,
-        subject: opts.subject,
-        body: opts.body,
-        html: opts.html,
-        attachments: [{ filename, content }],
-      });
-    } finally {
-      await cleanupTemp(tmpPath);
-    }
+    const deleted = new Set(doc.DeletedPages ?? []);
+
+    const attachments = await Promise.all(
+      opts.segments.map(async (seg) => {
+        const safePages = seg.pages.filter((p) => p >= 1 && p <= doc.PageCount && !deleted.has(p));
+        const content = await buildSegmentBuffer(doc, pdfPath, safePages);
+        const filename = seg.filename.endsWith('.pdf') ? seg.filename : `${seg.filename}.pdf`;
+        return { filename, content };
+      }),
+    );
+
+    await this.mailService.sendMail({
+      to: opts.to,
+      subject: opts.subject,
+      body: opts.body,
+      html: opts.html,
+      attachments,
+    });
   }
 }