fix(api): include pdfmake Roboto fonts in runtime image

api/Dockerfile

@@ -90,6 +90,9 @@ COPY --from=build /app/dalpuri/generated/ ./dalpuri/generated/
 # Copy production node_modules (Prisma adapter needs native bindings)
 COPY --from=deps /app/node_modules/ ./node_modules/
 
+# Ensure pdfmake Roboto fonts are present at runtime for PDF generation.
+COPY --from=build /app/node_modules/pdfmake/build/fonts/ ./node_modules/pdfmake/build/fonts/
+
 ENV NODE_ENV=production
 
 # ---- Stage 4: API server runtime image ----

api/src/modules/pdf-utils/generateQuote.ts

@@ -1,5 +1,5 @@
 import PdfPrinter from "pdfmake/src/Printer";
-import { readFileSync } from "node:fs";
+import { existsSync, readFileSync } from "node:fs";
 import { join } from "node:path";
 
 export interface QuoteLineItem {
@@ -110,7 +110,26 @@ const COMPANY = {
 
 const DEFAULT_LOGO_PATH = join(process.cwd(), "logo.png");
 
-const fontDir = join(process.cwd(), "node_modules/pdfmake/build/fonts/Roboto");
+function resolveRobotoFontDir(): string {
+  const candidates = [
+    join(process.cwd(), "node_modules/pdfmake/build/fonts/Roboto"),
+    join(import.meta.dir, "../../../node_modules/pdfmake/build/fonts/Roboto"),
+    join("/app/node_modules/pdfmake/build/fonts/Roboto"),
+    join("/app/api/node_modules/pdfmake/build/fonts/Roboto"),
+  ];
+
+  for (const dir of candidates) {
+    if (existsSync(join(dir, "Roboto-Medium.ttf"))) {
+      return dir;
+    }
+  }
+
+  throw new Error(
+    `[pdf] Could not locate pdfmake Roboto fonts. Checked: ${candidates.join(", ")}`
+  );
+}
+
+const fontDir = resolveRobotoFontDir();
 const fonts = {
   Roboto: {
     normal: join(fontDir, "Roboto-Regular.ttf"),