1.5.2

- feat: order confirmation PDF generation with VAT support
- feat: order confirmation modal with custom item editing
- fix: attendance negative duration clamping and switchProject timing
- fix: Quill editor locked to Tahoma 14px, PDF heading sizes
- fix: invoice/offer PDF font consistency (Tahoma enforcement)
- fix: invoice alert cron improvements
- fix: NAS financials manager edge cases
- refactor: numbering service with unique sequence constraints

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/services/offers.service.ts

@@ -1,5 +1,9 @@
 import prisma from "../config/database";
-import { generateOfferNumber } from "./numbering.service";
+import {
+  generateOfferNumber,
+  previewOfferNumber,
+  releaseOfferNumber,
+} from "./numbering.service";
 
 interface QuotationItemInput {
   description?: string;
@@ -18,7 +22,7 @@ interface ScopeSectionInput {
 }
 
 // Re-export for convenience
-export { generateOfferNumber as getNextOfferNumber } from "./numbering.service";
+export { previewOfferNumber as getNextOfferNumber } from "./numbering.service";
 
 const ALLOWED_SORT_FIELDS = [
   "id",
@@ -133,11 +137,14 @@ export async function getOffer(id: number) {
 }
 
 export async function createOffer(body: Record<string, any>) {
+  const quotationNumber =
+    body.quotation_number !== undefined && body.quotation_number !== null
+      ? String(body.quotation_number)
+      : await generateOfferNumber();
+
   const quotation = await prisma.quotations.create({
     data: {
-      quotation_number: body.quotation_number
-        ? String(body.quotation_number)
-        : null,
+      quotation_number: quotationNumber,
       project_code: body.project_code ? String(body.project_code) : null,
       customer_id: body.customer_id ? Number(body.customer_id) : null,
       valid_until: body.valid_until ? new Date(String(body.valid_until)) : null,
@@ -190,13 +197,16 @@ export async function updateOffer(id: number, body: Record<string, any>) {
   if (existing.status === "invalidated")
     return { error: "invalidated" as const };
 
+  if (
+    body.quotation_number !== undefined &&
+    String(body.quotation_number) !== existing.quotation_number
+  ) {
+    return { error: "Číslo nabídky nelze změnit", status: 400 } as const;
+  }
+
   await prisma.quotations.update({
     where: { id },
     data: {
-      quotation_number:
-        body.quotation_number !== undefined
-          ? String(body.quotation_number)
-          : undefined,
       customer_id:
         body.customer_id !== undefined ? Number(body.customer_id) : undefined,
       valid_until:
@@ -281,6 +291,12 @@ export async function deleteOffer(id: number) {
   if (!existing) return null;
 
   await prisma.quotations.delete({ where: { id } });
+
+  const year = existing.created_at
+    ? new Date(existing.created_at).getFullYear()
+    : new Date().getFullYear();
+  await releaseOfferNumber(year);
+
   return existing;
 }