fixes

app/api/v1/parts/[id]/travelers.pdf/route.ts

@@ -1,6 +1,7 @@
 import { type NextRequest, NextResponse } from "next/server";
 import { prisma } from "@/lib/prisma";
 import { errorResponse, requireRole, ApiError } from "@/lib/api";
+import { readFileBytes } from "@/lib/files";
 import {
   renderPartTravelers,
   type OperationCardData,
@@ -24,10 +25,15 @@ export async function GET(_req: NextRequest, ctx: { params: Promise<{ id: string
       where: { id },
       include: {
         assembly: {
-          include: { project: { select: { code: true, name: true } } },
+          include: {
+            project: { select: { code: true, name: true } },
+            drawingFile: { select: { path: true, originalName: true } },
+          },
         },
         stepFile: { select: { originalName: true, sizeBytes: true, sha256: true } },
-        drawingFile: { select: { originalName: true, sizeBytes: true, sha256: true } },
+        drawingFile: {
+          select: { originalName: true, sizeBytes: true, sha256: true, path: true },
+        },
         cutFile: { select: { originalName: true, sizeBytes: true, sha256: true } },
         operations: {
           orderBy: { sequence: "asc" },
@@ -42,7 +48,11 @@ export async function GET(_req: NextRequest, ctx: { params: Promise<{ id: string
     }
 
     const project = part.assembly.project;
-    const assembly = { code: part.assembly.code, name: part.assembly.name };
+    const assembly = {
+      code: part.assembly.code,
+      name: part.assembly.name,
+      qty: part.assembly.qty,
+    };
     const partHeader = {
       code: part.code,
       name: part.name,
@@ -50,6 +60,14 @@ export async function GET(_req: NextRequest, ctx: { params: Promise<{ id: string
       qty: part.qty,
     };
 
+    // Pull drawing PDFs off disk so pdf-lib can inline them behind the cover /
+    // op cards. Missing / unreadable files are logged and skipped — the
+    // traveler still prints without them rather than 500ing.
+    const drawingPdfBytes = await tryReadPdf(part.drawingFile?.path ?? null);
+    const assemblyDrawingPdfBytes = await tryReadPdf(
+      part.assembly.drawingFile?.path ?? null,
+    );
+
     const cover: PartCoverData = {
       project,
       assembly,
@@ -88,7 +106,12 @@ export async function GET(_req: NextRequest, ctx: { params: Promise<{ id: string
       },
     }));
 
-    const pdf = await renderPartTravelers({ cover, cards });
+    const pdf = await renderPartTravelers({
+      cover,
+      cards,
+      drawingPdfBytes,
+      assemblyDrawingPdfBytes,
+    });
     const safeName = `${part.code}-travelers.pdf`.replace(/[^A-Za-z0-9._-]/g, "_");
 
     return new NextResponse(pdf as unknown as BodyInit, {
@@ -103,3 +126,14 @@ export async function GET(_req: NextRequest, ctx: { params: Promise<{ id: string
     return errorResponse(err);
   }
 }
+
+async function tryReadPdf(path: string | null): Promise<Uint8Array | null> {
+  if (!path) return null;
+  try {
+    const buf = await readFileBytes(path);
+    return new Uint8Array(buf);
+  } catch (err) {
+    console.warn("[travelers.pdf] could not read drawing file", { path, err });
+    return null;
+  }
+}