fix(ancpi): use JSON body for EpayJsonInterceptor + EditCartItemJson

Root cause from ePay Angular analysis:
- EpayJsonInterceptor needs Content-Type: application/json + {"judet": N}
- EditCartItemJson needs JSON with bigDecimalValue/stringValue structure
- SearchEstate needs basketId in body for JSON response
- Queue skips SearchEstate (data already from eTerra), uses
  configureCartItem → submitOrder flow directly

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/app/api/ancpi/test/route.ts

@@ -77,50 +77,43 @@ export async function GET(req: Request) {
     }
 
     // ── Step: search ──
-    // Test EditCartItemJson.action — the real endpoint for configuring cart items
+    // Test UAT lookup (JSON) + SearchEstate (with basketId)
     if (step === "search") {
       const client = await EpayClient.create(username, password);
-      const BASE = process.env.ANCPI_BASE_URL || "https://epay.ancpi.ro/epay";
+      const countyIdx = resolveEpayCountyIndex("Cluj")!;
+      const results: Record<string, unknown> = { countyIdx };
 
-      // Add to cart
+      // 1. Get UAT list (JSON body now)
+      const uatList = await client.getUatList(countyIdx);
+      results["uatCount"] = uatList.length;
+      results["uatFirst5"] = uatList.slice(0, 5);
+
+      // Find our test UATs
+      const normalize = (s: string) =>
+        s.normalize("NFD").replace(/[\u0300-\u036f]/g, "").toUpperCase();
+      const clujNapoca = uatList.find((u) => normalize(u.value).includes("CLUJ-NAPOCA") || normalize(u.value).includes("CLUJNAPOCA"));
+      const feleacu = uatList.find((u) => normalize(u.value).includes("FELEACU"));
+      const floresti = uatList.find((u) => normalize(u.value).includes("FLORESTI"));
+      results["uatMatches"] = { clujNapoca, feleacu, floresti };
+
+      // 2. Add to cart + SearchEstate with basketId
       const basketRowId = await client.addToCart(14200);
+      results["basketRowId"] = basketRowId;
 
-      const results: Record<string, unknown> = { basketRowId };
-
-      // Test 1: Set county via EditCartItemJson to get UAT list
-      try {
-        const body1 = new URLSearchParams();
-        body1.set("basketId", String(basketRowId));
-        body1.set("metadate.judet", "13"); // CLUJ
-
-        const resp1 = await client.postRaw(
-          `${BASE}/EditCartItemJson.action`,
-          body1.toString(),
-        );
-        results["setCounty_type"] = typeof resp1;
-        results["setCounty_len"] = typeof resp1 === "string" ? resp1.length : JSON.stringify(resp1).length;
-        results["setCounty_sample"] = (typeof resp1 === "string" ? resp1 : JSON.stringify(resp1)).slice(0, 1000);
-      } catch (e) {
-        results["setCounty_error"] = (e as Error).message;
+      if (clujNapoca) {
+        results["search_345295"] = await client
+          .searchEstate("345295", countyIdx, clujNapoca.id, basketRowId)
+          .catch((e: Error) => ({ error: e.message }));
       }
-
-      // Test 2: Try SearchEstate via the Angular way (maybe it's inside EditCartItemJson)
-      try {
-        const body2 = new URLSearchParams();
-        body2.set("basketId", String(basketRowId));
-        body2.set("identifier", "345295");
-        body2.set("countyId", "13");
-
-        const resp2 = await client.postRaw(
-          `${BASE}/SearchEstate.action`,
-          body2.toString(),
-          { "X-Requested-With": "XMLHttpRequest", Accept: "application/json" },
-        );
-        results["searchAjax_type"] = typeof resp2;
-        results["searchAjax_len"] = typeof resp2 === "string" ? resp2.length : JSON.stringify(resp2).length;
-        results["searchAjax_sample"] = (typeof resp2 === "string" ? resp2 : JSON.stringify(resp2)).slice(0, 1000);
-      } catch (e) {
-        results["searchAjax_error"] = (e as Error).message;
+      if (feleacu) {
+        results["search_63565"] = await client
+          .searchEstate("63565", countyIdx, feleacu.id, basketRowId)
+          .catch((e: Error) => ({ error: e.message }));
+      }
+      if (floresti) {
+        results["search_88089"] = await client
+          .searchEstate("88089", countyIdx, floresti.id, basketRowId)
+          .catch((e: Error) => ({ error: e.message }));
       }
 
       return NextResponse.json({ step: "search", results });
@@ -128,7 +121,6 @@ export async function GET(req: Request) {
 
     // ── Step: order ── (USES 3 CREDITS!)
     if (step === "order") {
-      // Ensure session exists
       if (!getEpayCredentials()) {
         createEpaySession(username, password, 0);
       }
@@ -158,6 +150,7 @@ export async function GET(req: Request) {
       if (!clujNapoca || !feleacu || !floresti) {
         return NextResponse.json({
           error: "Nu s-au găsit UAT-urile.",
+          uatCount: uatList.length,
           clujNapoca, feleacu, floresti,
         });
       }
@@ -168,21 +161,21 @@ export async function GET(req: Request) {
           judetIndex: countyIdx,
           judetName: "CLUJ",
           uatId: clujNapoca.id,
-          uatName: "Cluj-Napoca",
+          uatName: clujNapoca.value,
         },
         {
           nrCadastral: "63565",
           judetIndex: countyIdx,
           judetName: "CLUJ",
           uatId: feleacu.id,
-          uatName: "Feleacu",
+          uatName: feleacu.value,
         },
         {
           nrCadastral: "88089",
           judetIndex: countyIdx,
           judetName: "CLUJ",
           uatId: floresti.id,
-          uatName: "Florești",
+          uatName: floresti.value,
         },
       ];
 
@@ -195,11 +188,12 @@ export async function GET(req: Request) {
       return NextResponse.json({
         step: "order",
         credits,
-        message: `Enqueued ${ids.length} orders. Queue processing started.`,
+        message: `Enqueued ${ids.length} orders. Processing sequentially...`,
         orderIds: ids,
         parcels: parcels.map((p, i) => ({
           nrCadastral: p.nrCadastral,
           uatName: p.uatName,
+          uatId: p.uatId,
           extractId: ids[i],
         })),
       });