Checkpoint: Correctifs validés en sandbox : retour contextuel depuis le détail vers Factures BAP avec filtres et tri conservés, et nouvelle action Abonnement Oui/Non/Ne pas modifier dans les automatismes. Ajout de tests de non-régression.

server/bapNavigation.test.ts

@@ -0,0 +1,52 @@
+import { describe, expect, it } from "vitest";
+import {
+  buildBapDetailLocation,
+  getBapReturnLocation,
+  parseBapFilters,
+} from "../client/src/lib/bapNavigation";
+
+describe("navigation Factures BAP", () => {
+  it("transmet tous les filtres et le tri à la page de détail", () => {
+    const location = buildBapDetailLocation(42, {
+      searchQuery: "microsoft europe",
+      statusFilter: "bap_pending",
+      selectedYear: "2026",
+      selectedMonth: "05",
+      sortField: "invoiceDate",
+      sortDir: "asc",
+    });
+
+    expect(location).toBe(
+      "/invoices/42?returnTo=bap&q=microsoft+europe&status=bap_pending&year=2026&month=05&sort=invoiceDate&dir=asc"
+    );
+  });
+
+  it("restaure la liste BAP et les filtres de façon sûre", () => {
+    const detailSearch =
+      "?returnTo=bap&q=microsoft+europe&status=bap_pending&year=2026&month=05&sort=invoiceDate&dir=asc";
+
+    expect(getBapReturnLocation(detailSearch)).toBe(
+      "/invoices-bap?q=microsoft+europe&status=bap_pending&year=2026&month=05&sort=invoiceDate&dir=asc"
+    );
+    expect(parseBapFilters(detailSearch, "2026")).toEqual({
+      searchQuery: "microsoft europe",
+      statusFilter: "bap_pending",
+      selectedYear: "2026",
+      selectedMonth: "05",
+      sortField: "invoiceDate",
+      sortDir: "asc",
+    });
+  });
+
+  it("retombe sur les valeurs BAP sûres si les paramètres sont absents ou invalides", () => {
+    expect(parseBapFilters("?returnTo=bap&status=invalid&year=x&sort=nope&dir=down", "2026")).toEqual({
+      searchQuery: "",
+      statusFilter: "all",
+      selectedYear: "2026",
+      selectedMonth: "all",
+      sortField: "createdAt",
+      sortDir: "desc",
+    });
+    expect(getBapReturnLocation("?returnTo=invoices")).toBe("/invoices");
+  });
+});