fix(pl24): drop P4 nav-crumb links from decoded categories

VIN-group HTML for Ford/Volvo legacy services exposes the header
breadcrumb links (Portal / Model seçimi / current VIN) via the same
.action pattern the parser relied on, so they were being persisted as
"part categories" — users saw three useless rows instead of real groups.
The PSA flow already documented this trap and bypassed rawData; extend
the same defense to the rest of P4 legacy (parser-side + categories
insert fallback).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/api/src/categories/categories.service.ts

@@ -148,8 +148,13 @@ export class CategoriesService {
 
         if (decodedCats && decodedCats.length > 0) {
           try {
+            // Strip P4 header/breadcrumb nav crumbs (Portal, "Model seçimi",
+            // current VIN) — these slipped past the older decoder filter and
+            // sit in cached rawData; they are never real part categories.
+            const NAV_CRUMB_RE = /(portal|vehicle|vin-group|logout)\.action/i;
             const seenNames = new Set<string>();
             const uniqueCats = decodedCats.filter((c) => {
+              if (c.linkPath && NAV_CRUMB_RE.test(c.linkPath)) return false;
               const name = c.nameTr || c.nameEn;
               if (seenNames.has(name)) return false;
               seenNames.add(name);

apps/api/src/integrations/pl24/pl24-ford-legacy.service.ts

@@ -3752,6 +3752,18 @@ export class PL24FordLegacyService {
     // Filter to only category-like links (exclude navigation/auth links)
     const filtered = categoryLinks.filter((link) => {
       const href = link.href.toLowerCase();
+      // Header/breadcrumb nav crumbs on the VIN page (Portal, "Model seçimi",
+      // current VIN). They match action-link patterns but are never real
+      // categories — exclude before any include-rule can pick them up.
+      if (
+        href.includes("portal.action") ||
+        href.includes("vehicle.action") ||
+        href.includes("vin-group.action") ||
+        href.includes("logout.action") ||
+        href.includes("login")
+      ) {
+        return false;
+      }
       // Include group/category navigation links
       if (
         href.includes("group") ||
@@ -3761,13 +3773,8 @@ export class PL24FordLegacyService {
       ) {
         return true;
       }
-      // Exclude login, keep-alive, etc.
-      if (
-        href.includes("login") ||
-        href.includes("keep-alive") ||
-        href.includes("logout") ||
-        href.includes("json-")
-      ) {
+      // Exclude keep-alive, json- helper endpoints.
+      if (href.includes("keep-alive") || href.includes("json-")) {
         return false;
       }
       // Include if it looks like a content link with text