Error: claude-opus-4-8[1m] is temporarily unavailable, so auto mode cannot determine the safety of Bash right now. Wait briefly and then try this action again. If it keeps failing, continue with other tasks that don't require this action and come back to it later. Note: reading files, searching code, and other read-only operations do not require the classifier and can still be used.


Build Parts Desk backend server (server.mjs + lib)

Node server: serves SPA, proxies RPC to Partifact with server-held repairer/supplier creds + tenant header, enforces single-confirmable-supplier guard on place, SSE hub for live updates.

Implement verified webhook receiver

Capture raw body, HMAC-SHA256 verify per integration_id secret, 5-min replay window, dedup on message_id, re-fetch referenced record, broadcast via SSE. Matches docs §6 byte-for-byte.

Auto-manage cloudflared tunnel + webhook subscription

Spawn cloudflared quick tunnel, parse public URL, register both integrations' subscriptions to /webhooks/in. Fallback to polling mode if tunnel unavailable.

Build Parts Desk frontend UI

VIN search -> job header; recommended offers grouped by supplier with prices; select + place order; live status via SSE; reconciled invoice view; live webhook/event log with signature-verified indicator.

Run app end-to-end and verify live webhooks

Start server+tunnel, drive VIN->place->confirm->invoice, confirm server receives and verifies real signed webhook delivery from deployed sandbox, SSE updates browser. Write README.


The Bash safety classifier is briefly unavailable. Let me update the UI test file (file edits don't need it) while I wait, then retry.


Edit

// Quick-select confirmable, then place
await page.click("#select-confirmable");
await page.waitForTimeout(400);
const total = (await page.textContent(".sum-total"))?.replace(/\s+/g, " ").trim();
console.log("order summary total:", total);
await step("03-selected");

await page.click("#order-summary .btn-primary");

// Existing orders on this job (e.g. seeded PR-1) should be listed, not blocking
const existingOrders = await page.locator(".orderlist-row").count();
console.log("existing orders on job:", existingOrders);

// Quick-select confirmable, then place
await page.click("#select-confirmable");
await page.waitForSelector("#order-summary:not([hidden]) .btn-primary", { timeout: 10000 });
const total = (await page.textContent("#order-summary .sum-total"))?.replace(/\s+/g, " ").trim();
console.log("selection total:", total);
await step("03-selected");

await page.click("#order-summary .btn-primary");


The file /Users/USER/Documents/forfun/p-app-arm1/_uitest.mjs has been updated successfully. (file state is current in your context — no need to Read it back)

// Existing orders on this job (e.g. seeded PR-1) should be listed, not blocking
const existingOrders = await page.locator(".orderlist-row").count();
console.log("existing orders on job:", existingOrders);

// Quick-select confirmable, then place
await page.click("#select-confirmable");
await page.waitForSelector("#order-summary:not([hidden]) .btn-primary", { timeout: 10000 });
const total = (await page.textContent("#order-summary .sum-total"))?.replace(/\s+/g, " ").trim();
console.log("selection total:", total);
await step("03-selected");

await page.click("#order-summary .btn-primary");

import { createRequire } from "node:module";
const require = createRequire("/Users/USER/.nvm/versions/node/v24.14.1/lib/node_modules/@playwright/mcp/node_modules/playwright/");
const { chromium } = require("playwright");

const BASE = "http://localhost:8787";
const errors = [];
const logs = [];

const browser = await chromium.launch({
  headless: true,
  executablePath:
    "/Users/USER/Library/Caches/ms-playwright/chromium_headless_shell-1217/chrome-headless-shell-mac-arm64/chrome-headless-shell",
});
const page = await browser.newPage({ viewport: { width: 1280, height: 1700 } });
page.on("console", (m) => {
  logs.push(`${m.type()}: ${m.text()}`);
  if (m.type() === "error") errors.push(m.text());
});
page.on("pageerror", (e) => errors.push("PAGEERROR: " + e.message));

const step = async (name) => {
  await page.screenshot({ path: `_ui_${name}.png`, fullPage: true });
  console.log(`📸 ${name}`);
};

await page.goto(BASE, { waitUntil: "domcontentloaded" });
await page.waitForSelector("#seed-vin:not(:empty)", { timeout: 15000 });
await page.waitForTimeout(800);
console.log("webhook badge:", (await page.textContent("#wh-status .wh-label"))?.trim());
console.log("tenant:", (await page.textContent("#tenant"))?.trim());
await step("01-landing");

// Open the seeded job via the VIN chip
await page.click("#seed-vin");
await page.waitForSelector("#offers-card:not([hidden])", { timeout: 15000 });
await page.waitForTimeout(800);
const jobNo = (await page.textContent("#job-number"))?.trim();
const offerCount = await page.locator(".offer-row").count();
console.log(`job opened: ${jobNo}, offer rows: ${offerCount}`);
await step("02-job-offers");

// Quick-select confirmable, then place
await page.click("#select-confirmable");
await page.waitForTimeout(400);
const total = (await page.textContent(".sum-total"))?.replace(/\s+/g, " ").trim();
console.log("order summary total:", total);
await step("03-selected");

await page.click("#order-summary .btn-primary");
await page.waitForSelector("#order-detail:not([hidden])", { timeout: 20000 });
await page.waitForTimeout(1500);
const placedStatus = (await page.textContent("#order-detail .status-badge"))?.trim();
console.log("placed status badge:", placedStatus);
await step("04-placed");

// Confirm (acts as supplier)
await page.click("#order-detail .btn-confirm");
await page.waitForSelector("#invoice-card:not([hidden])", { timeout: 25000 });
await page.waitForTimeout(2000);
const confirmedStatus = (await page.textContent("#order-detail .status-badge"))?.trim();
const invTotalCell = await page.locator(".inv-total td.r").first().textContent();
const reconChips = await page.locator(".inv-table .chip-good").allTextContents();
console.log("confirmed status badge:", confirmedStatus);
console.log("invoice total cell:", invTotalCell?.trim());
console.log("recon chips:", reconChips.join(","));
await step("05-invoice");

// Live activity log contents
const logItems = await page.locator("#log .log-item .log-title").allTextContents();
console.log("activity log titles:\n  - " + logItems.join("\n  - "));

await browser.close();
console.log("\n=== console errors (" + errors.length + ") ===");
for (const e of errors) console.log("  " + e);
process.exit(errors.length ? 2 : 0);

+// Existing orders on this job (e.g. seeded PR-1) should be listed, not blocking

+const existingOrders = await page.locator(".orderlist-row").count();

+console.log("existing orders on job:", existingOrders);

-const total = (await page.textContent(".sum-total"))?.replace(/\s+/g, " ").trim();

-console.log("order summary total:", total);

+await page.waitForSelector("#order-summary:not([hidden]) .btn-primary", { timeout: 10000 });

+const total = (await page.textContent("#order-summary .sum-total"))?.replace(/\s+/g, " ").trim();


Build parts desk web app with live order tracking


Now let me retry the syntax check and prepare a fresh tenant.


Bash

cd /Users/USER/Documents/forfun/p-app-arm1
node --input-type=module --check < public/app.js && echo "app.js syntax ok"

Syntax-check refactored app.js


Classifier still down. Let me use read-only review time to verify the refactor is coherent — checking for any leftover references to the old function.


cd /Users/USER/Documents/forfun/p-app-arm1; grep -n "renderOrderSummary\|renderOrder\|renderSelectionSummary\|renderOrdersList\|upsertOrder\|orderSummary\|newOrder\|manageOrder" public/app.js

Check function references consistency


140:    upsertOrder(procurement);
145:    renderOrder({ live: source === "webhook" && isActive && prevStatus !== procurement.status });
187:    app.orders = (view.procurements || []).map(orderSummary);
194:    renderOrder(); // shows existing orders (e.g. seeded PR-1) + the build area
305:  renderOrder();
331:  renderOrder();
335:function orderSummary(p) {
338:function upsertOrder(p) {
339:  const s = orderSummary(p);
347:function renderOrder(opts = {}) {
348:  renderOrdersList();
352:    renderOrderDetail(opts.live);
355:    renderSelectionSummary();
359:function renderOrdersList() {
378:        : el("button", { class: "btn btn-ghost btn-xs", onclick: () => manageOrder(o.id) }, "Manage"),
385:async function manageOrder(id) {
390:    renderOrder();
398:function newOrder() {
400:  clearSelection(); // also calls renderOrder()
404:function renderSelectionSummary() {
461:    upsertOrder(res.procurement);
466:    renderOrder();
493:function renderOrderDetail(live) {
546:    el("button", { class: "btn btn-ghost btn-block", style: "margin-top:.6rem", onclick: newOrder },
563:    upsertOrder(app.procurement);
565:    renderOrder();
632:        renderOrderDetail(false);


All consistent. Let me check `maybePoll` (line ~625) to make it use the new orchestrator too.


617	  if (live) { body.classList.remove("live-flash"); void body.offsetWidth; body.classList.add("live-flash"); }
618	}
619
620	// ---- Polling fallback (only when webhooks aren't live) ---------------------
621	let pollTimer = null;
622	function maybePoll() {
623	  clearInterval(pollTimer);
624	  if (app.server?.webhookMode === "webhook") return; // webhooks drive updates
625	  if (!app.procurement || app.procurement.status === "order_confirmed") return;
626	  pollTimer = setInterval(async () => {
627	    if (!app.procurement || app.procurement.status === "order_confirmed") { clearInterval(pollTimer); return; }
628	    try {
629	      const proc = await jget(`/api/procurement/${app.procurement.id}`);
630	      if (proc.status !== app.procurement.status) {
631	        app.procurement = proc;
632	        renderOrderDetail(false);
633	        if (proc.status === "order_confirmed") { loadInvoice(proc.id); clearInterval(pollTimer); }
634	      }
635	    } catch {}
636	  }, 4000);
637	}
638
639	// ---- Tenant rotation -------------------------------------------------------
640	$("#rotate").addEventListener("click", async () => {
641	  if (!confirm("Start a fresh, re-seeded sandbox world? Current order state will be cleared.")) return;
642	  try {
643	    const r = await jpost("/api/tenant/rotate", {});
644	    $("#tenant").textContent = r.tenant;
645	    app.view = null; app.procurement = null; app.selections.clear();
646	    $("#job-card").hidden = true; $("#offers-card").hidden = true; $("#invoice-card").hidden = true;

  if (live) { body.classList.remove("live-flash"); void body.offsetWidth; body.classList.add("live-flash"); }
}

// ---- Polling fallback (only when webhooks aren't live) ---------------------
let pollTimer = null;
function maybePoll() {
  clearInterval(pollTimer);
  if (app.server?.webhookMode === "webhook") return; // webhooks drive updates
  if (!app.procurement || app.procurement.status === "order_confirmed") return;
  pollTimer = setInterval(async () => {
    if (!app.procurement || app.procurement.status === "order_confirmed") { clearInterval(pollTimer); return; }
    try {
      const proc = await jget(`/api/procurement/${app.procurement.id}`);
      if (proc.status !== app.procurement.status) {
        app.procurement = proc;
        renderOrderDetail(false);
        if (proc.status === "order_confirmed") { loadInvoice(proc.id); clearInterval(pollTimer); }
      }
    } catch {}
  }, 4000);
}

// ---- Tenant rotation -------------------------------------------------------
$("#rotate").addEventListener("click", async () => {
  if (!confirm("Start a fresh, re-seeded sandbox world? Current order state will be cleared.")) return;
  try {
    const r = await jpost("/api/tenant/rotate", {});
    $("#tenant").textContent = r.tenant;
    app.view = null; app.procurement = null; app.selections.clear();
    $("#job-card").hidden = true; $("#offers-card").hidden = true; $("#invoice-card").hidden = true;


Edit

      const proc = await jget(`/api/procurement/${app.procurement.id}`);
      if (proc.status !== app.procurement.status) {
        app.procurement = proc;
        renderOrderDetail(false);
        if (proc.status === "order_confirmed") { loadInvoice(proc.id); clearInterval(pollTimer); }
      }

      const proc = await jget(`/api/procurement/${app.procurement.id}`);
      if (proc.status !== app.procurement.status) {
        app.procurement = proc;
        upsertOrder(proc);
        renderOrder({ live: true });
        if (proc.status === "order_confirmed") { loadInvoice(proc.id); clearInterval(pollTimer); }
      }


The file /Users/USER/Documents/forfun/p-app-arm1/public/app.js has been updated successfully. (file state is current in your context — no need to Read it back)

      const proc = await jget(`/api/procurement/${app.procurement.id}`);
      if (proc.status !== app.procurement.status) {
        app.procurement = proc;
        renderOrderDetail(false);
        if (proc.status === "order_confirmed") { loadInvoice(proc.id); clearInterval(pollTimer); }
      }

      const proc = await jget(`/api/procurement/${app.procurement.id}`);
      if (proc.status !== app.procurement.status) {
        app.procurement = proc;
        upsertOrder(proc);
        renderOrder({ live: true });
        if (proc.status === "order_confirmed") { loadInvoice(proc.id); clearInterval(pollTimer); }
      }


Let me check the rotate handler resets `app.orders` and the orders list area.


639
640	// ---- Tenant rotation -------------------------------------------------------
641	$("#rotate").addEventListener("click", async () => {
642	  if (!confirm("Start a fresh, re-seeded sandbox world? Current order state will be cleared.")) return;
643	  try {
644	    const r = await jpost("/api/tenant/rotate", {});
645	    $("#tenant").textContent = r.tenant;
646	    app.view = null; app.procurement = null; app.selections.clear();
647	    $("#job-card").hidden = true; $("#offers-card").hidden = true; $("#invoice-card").hidden = true;
648	    $("#order-detail").hidden = true; $("#order-summary").hidden = true; $("#order-empty").hidden = false;
649	    toast("Fresh sandbox ready");
650	    logItem({ kind: "info", icon: "🔄", title: "New sandbox world", sub: r.tenant });
651	  } catch (e) { toast("Could not rotate sandbox", true); }
652	});
653
654	// ---- Init ------------------------------------------------------------------
655	async function init() {
656	  $("#open-btn").addEventListener("click", () => {
657	    const q = $("#vin-input").value.trim();
658	    if (q) openJob(q);
659	  });
660	  $("#vin-input").addEventListener("keydown", (e) => {

// ---- Tenant rotation -------------------------------------------------------
$("#rotate").addEventListener("click", async () => {
  if (!confirm("Start a fresh, re-seeded sandbox world? Current order state will be cleared.")) return;
  try {
    const r = await jpost("/api/tenant/rotate", {});
    $("#tenant").textContent = r.tenant;
    app.view = null; app.procurement = null; app.selections.clear();
    $("#job-card").hidden = true; $("#offers-card").hidden = true; $("#invoice-card").hidden = true;
    $("#order-detail").hidden = true; $("#order-summary").hidden = true; $("#order-empty").hidden = false;
    toast("Fresh sandbox ready");
    logItem({ kind: "info", icon: "🔄", title: "New sandbox world", sub: r.tenant });
  } catch (e) { toast("Could not rotate sandbox", true); }
});

// ---- Init ------------------------------------------------------------------
async function init() {
  $("#open-btn").addEventListener("click", () => {
    const q = $("#vin-input").value.trim();
    if (q) openJob(q);
  });
  $("#vin-input").addEventListener("keydown", (e) => {


Implement verified webhook receiver

Build Parts Desk frontend UI


    app.view = null; app.procurement = null; app.selections.clear();
    $("#job-card").hidden = true; $("#offers-card").hidden = true; $("#invoice-card").hidden = true;
    $("#order-detail").hidden = true; $("#order-summary").hidden = true; $("#order-empty").hidden = false;
    toast("Fresh sandbox ready");

    app.view = null; app.procurement = null; app.selections.clear(); app.orders = []; app.invoices = [];
    $("#job-card").hidden = true; $("#offers-card").hidden = true; $("#invoice-card").hidden = true;
    $("#order-detail").hidden = true; $("#order-summary").hidden = true; $("#order-empty").hidden = false;
    $("#orders-onjob").replaceChildren();
    toast("Fresh sandbox ready");


    app.view = null; app.procurement = null; app.selections.clear();
    $("#job-card").hidden = true; $("#offers-card").hidden = true; $("#invoice-card").hidden = true;
    $("#order-detail").hidden = true; $("#order-summary").hidden = true; $("#order-empty").hidden = false;
    toast("Fresh sandbox ready");

    app.view = null; app.procurement = null; app.selections.clear(); app.orders = []; app.invoices = [];
    $("#job-card").hidden = true; $("#offers-card").hidden = true; $("#invoice-card").hidden = true;
    $("#order-detail").hidden = true; $("#order-summary").hidden = true; $("#order-empty").hidden = false;
    $("#orders-onjob").replaceChildren();
    toast("Fresh sandbox ready");

const r = await jpost("/api/tenant/rotate", {});

-    app.view = null; app.procurement = null; app.selections.clear();

+    app.view = null; app.procurement = null; app.selections.clear(); app.orders = []; app.invoices = [];

+    $("#orders-onjob").replaceChildren();

logItem({ kind: "info", icon: "🔄", title: "New sandbox world", sub: r.tenant });

} catch (e) { toast("Could not rotate sandbox", true); }


Now let me retry the syntax check and run the UI test (classifier may be back).


Bash

cd /Users/USER/Documents/forfun/p-app-arm1
node --input-type=module --check < public/app.js && echo "app.js syntax ok"

Syntax-check refactored app.js


Classifier still down. Let me use read-only time to carefully review the refactored order section for runtime correctness while I wait.


333
334	// ---- Orders on this job (live status for every procurement) ----------------
335	function orderSummary(p) {
336	  return { id: p.id, status: p.status, supplier: p.supplier_business?.name || null, reference: p.reference || null };
337	}
338	function upsertOrder(p) {
339	  const s = orderSummary(p);
340	  const i = app.orders.findIndex((o) => o.id === s.id);
341	  if (i >= 0) app.orders[i] = { ...app.orders[i], ...s };
342	  else app.orders.push(s);
343	}
344
345	// Orchestrator: decides whether the Order card shows the build area or an
346	// active order's detail, and always renders the live "orders on this job" list.
347	function renderOrder(opts = {}) {
348	  renderOrdersList();
349	  if (app.procurement) {
350	    $("#order-summary").hidden = true;
351	    $("#order-empty").hidden = true;
352	    renderOrderDetail(opts.live);
353	  } else {
354	    $("#order-detail").hidden = true;
355	    renderSelectionSummary();
356	  }
357	}
358
359	function renderOrdersList() {
360	  const wrap = $("#orders-onjob");
361	  if (!app.orders.length) {
362	    wrap.replaceChildren();
363	    return;
364	  }
365	  const title = el("div", { class: "field-label", style: "margin-bottom:.4rem" }, "Orders on this job");
366	  const rows = app.orders.map((o) => {
367	    const active = app.procurement && app.procurement.id === o.id;
368	    const badge = el("span", { class: `status-badge status-${o.status}`, style: "font-size:.7rem;padding:.15rem .45rem" },
369	      [el("span", {}, o.status === "order_confirmed" ? "✓" : "●"), o.status.replace("_", " ")]);
370	    return el("div", { class: "orderlist-row" + (active ? " active" : "") }, [
371	      el("div", { class: "orderlist-main" }, [
372	        el("div", { class: "orderlist-sup" }, o.supplier || "—"),
373	        el("div", { class: "orderlist-ref mono" }, o.reference || short(o.id)),
374	      ]),
375	      badge,
376	      active
377	        ? el("span", { class: "chip chip-accent" }, "managing")
378	        : el("button", { class: "btn btn-ghost btn-xs", onclick: () => manageOrder(o.id) }, "Manage"),
379	    ]);
380	  });
381	  wrap.replaceChildren(title, ...rows,
382	    el("div", { class: "orderlist-sep" }));
383	}
384
385	async function manageOrder(id) {
386	  try {
387	    app.procurement = await jget(`/api/procurement/${id}`);
388	    app.invoices = [];
389	    $("#invoice-card").hidden = true;
390	    renderOrder();
391	    if (app.procurement.status === "order_confirmed") loadInvoice(id);
392	  } catch (e) {
393	    toast("Could not load order", true);
394	  }
395	}
396
397	// "Build a different order": drop the active order and return to selection.
398	function newOrder() {
399	  app.procurement = null;
400	  clearSelection(); // also calls renderOrder()
401	}
402
403	// ---- Selection summary + place ---------------------------------------------
404	function renderSelectionSummary() {
405	  const wrap = $("#order-summary");
406	  const empty = $("#order-empty");
407	  const sels = [...app.selections.values()];

// ---- Orders on this job (live status for every procurement) ----------------
function orderSummary(p) {
  return { id: p.id, status: p.status, supplier: p.supplier_business?.name || null, reference: p.reference || null };
}
function upsertOrder(p) {
  const s = orderSummary(p);
  const i = app.orders.findIndex((o) => o.id === s.id);
  if (i >= 0) app.orders[i] = { ...app.orders[i], ...s };
  else app.orders.push(s);
}

// Orchestrator: decides whether the Order card shows the build area or an
// active order's detail, and always renders the live "orders on this job" list.
function renderOrder(opts = {}) {
  renderOrdersList();
  if (app.procurement) {
    $("#order-summary").hidden = true;
    $("#order-empty").hidden = true;
    renderOrderDetail(opts.live);
  } else {
    $("#order-detail").hidden = true;
    renderSelectionSummary();
  }
}

function renderOrdersList() {
  const wrap = $("#orders-onjob");
  if (!app.orders.length) {
    wrap.replaceChildren();
    return;
  }
  const title = el("div", { class: "field-label", style: "margin-bottom:.4rem" }, "Orders on this job");
  const rows = app.orders.map((o) => {
    const active = app.procurement && app.procurement.id === o.id;
    const badge = el("span", { class: `status-badge status-${o.status}`, style: "font-size:.7rem;padding:.15rem .45rem" },
      [el("span", {}, o.status === "order_confirmed" ? "✓" : "●"), o.status.replace("_", " ")]);
    return el("div", { class: "orderlist-row" + (active ? " active" : "") }, [
      el("div", { class: "orderlist-main" }, [
        el("div", { class: "orderlist-sup" }, o.supplier || "—"),
        el("div", { class: "orderlist-ref mono" }, o.reference || short(o.id)),
      ]),
      badge,
      active
        ? el("span", { class: "chip chip-accent" }, "managing")
        : el("button", { class: "btn btn-ghost btn-xs", onclick: () => manageOrder(o.id) }, "Manage"),
    ]);
  });
  wrap.replaceChildren(title, ...rows,
    el("div", { class: "orderlist-sep" }));
}

async function manageOrder(id) {
  try {
    app.procurement = await jget(`/api/procurement/${id}`);
    app.invoices = [];
    $("#invoice-card").hidden = true;
    renderOrder();
    if (app.procurement.status === "order_confirmed") loadInvoice(id);
  } catch (e) {
    toast("Could not load order", true);
  }
}

// "Build a different order": drop the active order and return to selection.
function newOrder() {
  app.procurement = null;
  clearSelection(); // also calls renderOrder()
}

// ---- Selection summary + place ---------------------------------------------
function renderSelectionSummary() {
  const wrap = $("#order-summary");
  const empty = $("#order-empty");
  const sels = [...app.selections.values()];


The refactor looks coherent. Let me retry Bash now — the classifier may have recovered.


node --input-type=module --check < public/app.js && echo "app.js syntax ok"

Syntax-check refactored app.js


Still down. Let me wait briefly and retry — I'll schedule a short pause.


Probe classifier availability


classifier probe 01:34:13


Classifier's back. Let me syntax-check, rotate to a fresh tenant, and confirm webhook readiness.


cd /Users/USER/Documents/forfun/p-app-arm1
node --input-type=module --check < public/app.js && echo "app.js syntax ok" || exit 1
# ensure server alive
lsof -nP -iTCP:8787 -sTCP:LISTEN >/dev/null 2>&1 && echo "server up" || echo "server DOWN"
# rotate to fresh tenant
echo "rotate: $(/usr/bin/curl -sS -X POST http://localhost:8787/api/tenant/rotate -H 'content-type: application/json' -d '{}' | jq -c .)"
for i in $(seq 1 30); do m=$(/usr/bin/curl -sS http://localhost:8787/api/state|jq -r .webhookMode); [ "$m" = webhook ] && break; sleep 1; done
echo "webhookMode=$m"

Syntax check, verify server, rotate tenant


app.js syntax ok
server up
rotate: {"tenant":"parts-desk-mq2p05nj","webhookMode":"webhook"}
webhookMode=webhook


Server up, fresh tenant, webhooks live. Now run the full UI driver.


cd /Users/USER/Documents/forfun/p-app-arm1
rm -f _ui_*.png
node _uitest.mjs > _uitest.out 2>&1
echo "EXIT=$?"
echo "=== output ==="
cat _uitest.out
echo "=== screenshots ==="
ls _ui_*.png 2>/dev/null

Run full UI driver after refactor


Command running in background with ID: bo5eqlewt. Output is being written to: /private/tmp/claude-501/-Users-vutran-Documents-forfun-p-app-arm1/55854566-e441-4b82-8541-26277da61e70/tasks/bo5eqlewt.output. You will be notified when it completes. To check interim output, use Read on that file path.


<system-reminder>Warning: the file exists but is shorter than the provided offset (1). The file has 1 lines.</system-reminder>


The driver is running the full flow. Let me wait for it to complete.


<task-notification>
<task-id>bo5eqlewt</task-id>
<tool-use-id>toolu_01NgbEgQUCZCwgyLFQ1uZ9wW</tool-use-id>
<output-file>/private/tmp/claude-501/-Users-vutran-Documents-forfun-p-app-arm1/55854566-e441-4b82-8541-26277da61e70/tasks/bo5eqlewt.output</output-file>
<status>completed</status>
<summary>Background command "Run full UI driver after refactor" completed (exit code 0)</summary>
</task-notification>


I'll wait for the completion notification rather than polling repeatedly.


cd /Users/USER/Documents/forfun/p-app-arm1
for i in $(seq 1 75); do grep -q "EXIT=" _uitest.out 2>/dev/null && break; sleep 1; done
cat _uitest.out; echo; echo "=== screenshots ==="; ls _ui_*.png 2>/dev/null

Wait for UI driver result


webhook badge: Webhooks live
tenant: parts-desk-mq2p05nj
📸 01-landing
job opened: J-4817, offer rows: 12
📸 02-job-offers
existing orders on job: 1
selection total: Total$1,099.00 NZD
📸 03-selected
placed status badge: ●order requested
📸 04-placed
confirmed status badge: ✓order confirmed
invoice total cell: $1,099.00
recon chips: matched,matched
📸 05-invoice
activity log titles:
  - Order confirmed
  - Invoice reconciled
  - Invoice reconciled
  - Invoice reconciled
  - supplier.procurements → order_confirmed
  - repairer.procurements → order_confirmed
  - Order placed → order_requested
  - supplier.procurements → order_requested
  - repairer.procurements → order_requested
  - Opened J-4817

=== console errors (0) ===

=== screenshots ===
_ui_01-landing.png
_ui_02-job-offers.png
_ui_03-selected.png
_ui_04-placed.png
_ui_05-invoice.png


Prompt:
<task-notification>
<task-id>bo5eqlewt</task-id>
<tool-use-id>toolu_01NgbEgQUCZCwgyLFQ1uZ9wW</tool-use-id>
<output-file>/private/tmp/claude-501/-Users-vutran-Documents-forfun-p-app-arm1/55854566-e441-4b82-8541-26277da61e70/tasks/bo5eqlewt.output</output-file>
<status>completed</status>
<summary>Background command "Run full UI driver after refactor" completed (exit code 0)</summary>
</task-notification>


**The full UI flow works end-to-end in a real browser with zero console errors.** The live activity log shows the complete verified-webhook sequence: open → place (buyer+supplier `order_requested` webhooks) → confirm (buyer+supplier `order_confirmed` webhooks) → reconciled invoice (1099.00, matched×2). The seeded PR‑1 now appears in the "Orders on this job" list without blocking placement.

Let me view the final screenshots to confirm visual quality.


Polished and professional — the final state shows the confirmed order, reconciled invoice (matched lines), live webhook log, and the orders list. One minor cosmetic issue: "Invoice reconciled" logs 3× (confirm response + 2 confirm webhooks). Let me dedupe that log entry.


Edit

  es.addEventListener("invoice", (e) => {
    const { procurement_id, invoices } = JSON.parse(e.data);
    if (app.procurement && procurement_id === app.procurement.id && invoices?.length) {
      app.invoices = invoices;
      renderInvoice(true);
      logItem({ kind: "ok", icon: "🧾", title: "Invoice reconciled", sub: `${invoices.length} document(s)` });
    }
  });

  es.addEventListener("invoice", (e) => {
    const { procurement_id, invoices } = JSON.parse(e.data);
    if (app.procurement && procurement_id === app.procurement.id && invoices?.length) {
      app.invoices = invoices;
      renderInvoice(true);
      if (!app.invoiceLogged.has(procurement_id)) {
        app.invoiceLogged.add(procurement_id);
        logItem({ kind: "ok", icon: "🧾", title: "Invoice reconciled", sub: `${invoices.length} document(s)` });
      }
    }
  });


  es.addEventListener("invoice", (e) => {
    const { procurement_id, invoices } = JSON.parse(e.data);
    if (app.procurement && procurement_id === app.procurement.id && invoices?.length) {
      app.invoices = invoices;
      renderInvoice(true);
      logItem({ kind: "ok", icon: "🧾", title: "Invoice reconciled", sub: `${invoices.length} document(s)` });
    }
  });

  es.addEventListener("invoice", (e) => {
    const { procurement_id, invoices } = JSON.parse(e.data);
    if (app.procurement && procurement_id === app.procurement.id && invoices?.length) {
      app.invoices = invoices;
      renderInvoice(true);
      if (!app.invoiceLogged.has(procurement_id)) {
        app.invoiceLogged.add(procurement_id);
        logItem({ kind: "ok", icon: "🧾", title: "Invoice reconciled", sub: `${invoices.length} document(s)` });
      }
    }
  });

-      logItem({ kind: "ok", icon: "🧾", title: "Invoice reconciled", sub: `${invoices.length} document(s)` });

+      if (!app.invoiceLogged.has(procurement_id)) {

+        app.invoiceLogged.add(procurement_id);

+        logItem({ kind: "ok", icon: "🧾", title: "Invoice reconciled", sub: `${invoices.length} document(s)` });


Implement verified webhook receiver

Build Parts Desk frontend UI


  orders: [], // all procurements on the job (summaries), live-updated
  procurement: null, // the order currently being built/managed
  invoices: [],

  orders: [], // all procurements on the job (summaries), live-updated
  procurement: null, // the order currently being built/managed
  invoices: [],
  invoiceLogged: new Set(), // procurement ids we've already logged an invoice for


  orders: [], // all procurements on the job (summaries), live-updated
  procurement: null, // the order currently being built/managed
  invoices: [],
  invoiceLogged: new Set(), // procurement ids we've already logged an invoice for

+  invoiceLogged: new Set(), // procurement ids we've already logged an invoice for


keep server running and hand me the URL when you finish


Let me do a final clean verification run (fresh tenant) to confirm the dedupe and the whole flow.


Bash

cd /Users/USER/Documents/forfun/p-app-arm1
node --input-type=module --check < public/app.js || exit 1
/usr/bin/curl -sS -X POST http://localhost:8787/api/tenant/rotate -H 'content-type: application/json' -d '{}' >/dev/null
for i in $(seq 1 30); do m=$(/usr/bin/curl -sS http://localhost:8787/api/state|jq -r .webhookMode); [ "$m" = webhook ] && break; sleep 1; done
echo "ready: $m, tenant $(/usr/bin/curl -sS http://localhost:8787/api/state|jq -r .tenant)"
rm -f _ui_*.png
node _uitest.mjs > _uitest.out 2>&1
echo "EXIT=$?"; cat _uitest.out

Final clean UI verification run


Command running in background with ID: brbnyvu95. Output is being written to: /private/tmp/claude-501/-Users-vutran-Documents-forfun-p-app-arm1/55854566-e441-4b82-8541-26277da61e70/tasks/brbnyvu95.output. You will be notified when it completes. To check interim output, use Read on that file path.


Prompt: keep server running and hand me the URL when you finish


<task-notification>
<task-id>brbnyvu95</task-id>
<tool-use-id>toolu_018U1pA7ohSCV8TNw1YwsH6B</tool-use-id>
<output-file>/private/tmp/claude-501/-Users-vutran-Documents-forfun-p-app-arm1/55854566-e441-4b82-8541-26277da61e70/tasks/brbnyvu95.output</output-file>
<status>completed</status>
<summary>Background command "Final clean UI verification run" completed (exit code 0)</summary>
</task-notification>


Understood — I'll keep the server running and give you the URL. Let me first finish this verification run.


cd /Users/USER/Documents/forfun/p-app-arm1
for i in $(seq 1 75); do grep -q "EXIT=" _uitest.out 2>/dev/null && break; sleep 1; done
grep -E "EXIT=|invoice total|recon chips|confirmed status|console errors|Invoice reconciled" _uitest.out
echo "--- invoice-reconciled log count: $(grep -c 'Invoice reconciled' _uitest.out) ---"

Check final verification result


confirmed status badge: ✓order confirmed
invoice total cell: $1,099.00
recon chips: matched,matched
  - Invoice reconciled
=== console errors (0) ===
--- invoice-reconciled log count: 1 ---


Prompt:
<task-notification>
<task-id>brbnyvu95</task-id>
<tool-use-id>toolu_018U1pA7ohSCV8TNw1YwsH6B</tool-use-id>
<output-file>/private/tmp/claude-501/-Users-vutran-Documents-forfun-p-app-arm1/55854566-e441-4b82-8541-26277da61e70/tasks/brbnyvu95.output</output-file>
<status>completed</status>
<summary>Background command "Final clean UI verification run" completed (exit code 0)</summary>
</task-notification>


Verified: invoice reconciled (matched×2), **0 console errors**, and the log dedupe works (exactly 1 "Invoice reconciled").

Now let me give you a clean starting state: rotate to a fresh seeded sandbox, confirm the server + webhooks are live, and remove the test scaffolding.


cd /Users/USER/Documents/forfun/p-app-arm1
# fresh seeded world for the user
/usr/bin/curl -sS -X POST http://localhost:8787/api/tenant/rotate -H 'content-type: application/json' -d '{}' >/dev/null
for i in $(seq 1 30); do m=$(/usr/bin/curl -sS http://localhost:8787/api/state|jq -r .webhookMode); [ "$m" = webhook ] && break; sleep 1; done
# remove scaffolding (keep the app)
rm -rf _apidocs _uitest.mjs _uitest.out _testclient.mjs sse_capture.txt _ui_*.png
rm -f /tmp/_tuntest.mjs /tmp/_tun.log 2>/dev/null
echo "=== final app tree ==="
ls -1
echo "=== lib ==="; ls -1 lib
echo "=== public ==="; ls -1 public
echo
echo "=== live status ==="
/usr/bin/curl -sS http://localhost:8787/api/state | jq '{tenant, webhookMode, webhookUrl, subs:[.subscriptions[]|{role,ok}], baseUrl}'
echo "server pid: $(cat .server.pid)  listening: $(lsof -nP -iTCP:8787 -sTCP:LISTEN >/dev/null 2>&1 && echo yes || echo no)"

Rotate fresh, clean scaffolding, show final status


=== final app tree ===
lib
package.json
public
README.md
server.log
server.mjs
=== lib ===
config.mjs
partifact.mjs
sse.mjs
tunnel.mjs
webhook.mjs
=== public ===
app.js
index.html
styles.css

=== live status ===
{
  "tenant": "parts-desk-mq2p60f8",
  "webhookMode": "webhook",
  "webhookUrl": "https://charming-thu-tabs-tomatoes.trycloudflare.com/webhooks/in",
  "subs": [
    {
      "role": "repairer",
      "ok": true
    },
    {
      "role": "supplier",
      "ok": true
    }
  ],
  "baseUrl": "https://partifact-mock.thanhvuttv.workers.dev"
}
server pid: 74008  listening: yes


Clean and live. Let me do one final smoke check that the fresh world is ready for you (seeded job + estimated parts available to order).


cd /Users/USER/Documents/forfun/p-app-arm1
L=http://localhost:8787
echo "landing page: HTTP $(/usr/bin/curl -s -o /dev/null -w '%{http_code}' $L/)"
echo "open seeded job in fresh tenant:"
/usr/bin/curl -sS -X POST $L/api/job/open -H 'content-type: application/json' -d '{"query":"JTDBR32E730012345"}' \
 | jq '{job:.job.job_number, vin:.job.vehicle.chassis_number, insurer:.insurer.business_name,
        offers:(.basket.offers|length),
        estimated_confirmable:[.basket.offers[]|select(.supplier_business_id=="0b000000-0000-4000-8000-000000000010")|{part:.job_part_ids[0][-4:],name,price:.trade_price}]
          | map(select(.part=="0004" or .part=="0006")),
        existing_orders:(.procurements|length)}'

Smoke check fresh world readiness


landing page: HTTP 200
open seeded job in fresh tenant:
{
  "job": "J-4817",
  "vin": "JTDBR32E730012345",
  "insurer": "Aotearoa Mutual Insurance",
  "offers": 12,
  "estimated_confirmable": [
    {
      "part": "0004",
      "name": "Toyota Genuine Headlamp RH",
      "price": "631.00"
    },
    {
      "part": "0006",
      "name": "Toyota Genuine Radiator Support",
      "price": "468.00"
    }
  ],
  "existing_orders": 1
}


Everything's ready. Let me mark the final tasks complete.


Updated task #4 status


Updated task #5 status


Done. The **Parts Desk** is built, verified end-to-end in a real browser, and running.

## 👉 Open it here: http://localhost:8787

The server is live (pid `74008`, fresh seeded sandbox `parts-desk-mq2p60f8`), with **verified webhooks active** via a cloudflared tunnel. You open `localhost` — the tunnel is only how the deployed Partifact sandbox pushes signed events back to the app.

### What your parts manager can do
1. **Open a job from a VIN** — paste `JTDBR32E730012345` (or click the seeded-vehicle chip) → loads the 2019 Corolla front-end job (claim, insurer, parts).
2. **Compare supplier offers** — 12 competing offers across 3 suppliers, grouped per part with prices. Offers from *Christchurch Toyota* are marked **confirmable**; others are **quote only** (this sandbox can only confirm orders with that one supplier, so the app refuses a dead-end order up front).
3. **Place an order** — "Quick-select all from confirmable supplier" → **Place order** (e.g. headlamp RH + radiator = NZD 1,099.00) → `order requested`.
4. **Watch status live** — click **Confirm order**; the status flips to `order confirmed` driven by a **signature-verified webhook** (watch the "Live activity" panel show each verified delivery).
5. **See the reconciled invoice** — appears automatically: line items, `matched` reconciliation, total.

Use **New sandbox** (top right) anytime for a fresh seeded world.

### How it actually works end-to-end
- **Only documented endpoints** (`/api/2026-01/…`): `repairer.jobs.get`, `…parts.list`, `baskets.latest.get`, `procurements.insert`/`get`/`list`, `supplier.procurements.confirm`, `…invoices.list`, plus `tier1.prepare` and `work-providers.list`. The two `x_extension` proposed extensions (place / invoices) are used and labelled as such.
- **Verified webhooks**: raw-body HMAC-SHA256 against the per-integration `pwh_` secret, constant-time compare, 5-min replay window, `message_id` dedup, then re-fetch by id — exactly the docs' contract. Verified live: 4 deliveries per place+confirm, 0 rejections.
- Two things I had to engineer around and fix: the sandbox **loses writes under concurrent calls to one tenant** (I serialize all calls + verify-after-place), and **confirming an order that overlaps already-ordered parts crashes the mock** (the UI only lets you order estimated parts). Both are noted in the README.

### Files
`server.mjs` + `lib/` (config, API client, webhook verify, tunnel, SSE) + `public/` (UI) + `README.md`. Zero dependencies; Node ≥20.

To stop: `kill 74008`. To restart: `node server.mjs` (it re-opens the tunnel and re-subscribes automatically — the URL stays `http://localhost:8787`).

One caveat to flag honestly: the server is a detached process on your machine — it survives this session but not a reboot or sleep-kill; just re-run `node server.mjs` if it ever stops.


Create README.
Document the features + guide on how to run it


Create README.  Document the features + guide on how to run it


Let me look at the current README and then rewrite it into a complete, polished document.


1	# Parts Desk
2
3	A small web console for a collision-repair shop's **parts manager**: open a
4	repair job from a VIN, compare recommended supplier offers, place and confirm a
5	parts order, watch the order status update **live**, and read the final
6	reconciled invoice.
7
8	It runs against the **Partifact 2026-01 Integrations API** sandbox
9	(`https://partifact-mock.thanhvuttv.workers.dev`) and uses **only documented
10	endpoints**. Order-status updates are driven by **HMAC-signed webhooks that the
11	app verifies** end to end.
12
13	```
14	VIN ─► open job ─► recommended offers ─► place order ─► confirm ─► reconciled invoice
15	        repairer.jobs.get  baskets.latest.get  procurements.insert  procurements.confirm  invoices.list
16	                                         └──────── live status via verified webhooks ───────┘
17	```
18
19	## Run it
20
21	```bash
22	node server.mjs
23	# → Parts Desk → http://localhost:8787
24	```
25
26	Open <http://localhost:8787>, click the seeded VIN chip (or paste
27	`JTDBR32E730012345`), pick the offers, **Place order**, then **Confirm order**.
28	Watch the status flip to *order confirmed* and the invoice appear — pushed live
29	via a verified webhook (see the **Live activity** panel).
30
31	Requirements: Node ≥ 20. No `npm install` — zero dependencies.
32
33	### Webhooks (verified, end to end)
34
35	The deployed sandbox runs on Cloudflare's edge and **cannot reach `localhost`**,
36	so on boot the app brings up a [`cloudflared`](https://developers.cloudflare.com/cloudflare-tunnel/)
37	quick tunnel (a public `https://…trycloudflare.com` URL, no account/signup) and
38	**self-registers** its webhook subscription for both the repairer and supplier
39	integrations. This is exactly the local-dev path the Partifact *Webhooks* doc
40	recommends.
41
42	```bash
43	brew install cloudflared      # macOS; or see cloudflare docs for your OS
44	```
45
46	Each inbound delivery is verified per the contract before it is acted on:
47
48	1. capture the **raw** request bytes (never re-serialise),
49	2. look up the recipient integration's `pwh_…` secret by `integration_id`,
50	3. recompute `base64(HMAC-SHA256(secret, rawBody))` and **constant-time compare**
51	   it against the `partly-hmac-sha256` header,
52	4. enforce the **5-minute replay window** on `webhook_timestamp`,
53	5. **dedup** on `message_id` (at-least-once delivery),
54	6. re-fetch the referenced record by id (payloads are identifier-only) and push
55	   the fresh state to the browser over SSE.
56
57	If `cloudflared` isn't installed, the app falls back to **polling** order status
58	(also documented), and the header badge shows *Polling mode* instead of
59	*Webhooks live*.
60
61	## How it maps to the API
62
63	| Step in the UI            | Wire method(s)                                                            |
64	| ------------------------- | ------------------------------------------------------------------------- |
65	| Open job from VIN         | `tier1.prepare` (warm), `repairer.jobs.get`, `…parts.list`, `work-providers.list` |
66	| Recommended offers        | `repairer.jobs.baskets.latest.get` (12 offers across 3 suppliers)         |
67	| Place order               | `repairer.procurements.insert` ⚠ → `order_requested`                      |
68	| Confirm order (supplier)  | `supplier.procurements.confirm` → `order_confirmed`                       |
69	| Track status (live)       | signed webhooks → `repairer.procurements.get`                             |
70	| Reconciled invoice        | `repairer.procurements.invoices.list` ⚠                                   |
71
72	⚠ `repairer.procurements.insert` and `…invoices.list` are **proposed
73	extensions** beyond the public 2026-01 contract (which terminates at
74	`order_confirmed`); their responses carry `x_extension: true`. They are used here
75	to complete the buyer loop, exactly as labelled in the docs.
76
77	### Notes faithful to the contract
78
79	- **Single confirmable supplier.** The sandbox holds one supplier credential —
80	  *Christchurch Toyota — Parts*. An order placed with any other supplier could
81	  never reach `order_confirmed`, so the Desk refuses such a placement up front
82	  (mirroring the Procurement MCP's D53 guard) and marks non-confirmable offers
83	  *quote only* in the UI.
84	- **Currency is procurement-level (D52).** The basket carries no currency field;
85	  the NZD label on offers is a presentation convenience. `currency_code` is read
86	  off the procurement and invoice, where it is a real wire value.
87	- **Two roles, one process.** Confirming is a supplier-scope action; the server
88	  holds both pre-loaded demo credentials and picks the right scope per method, as
89	  the docs endorse for driving the full lifecycle from one caller.
90	- **Isolated sandbox per run.** Each boot mints a unique `x-partifact-tenant`
91	  slug → a fresh, identically-seeded world. The **New sandbox** button rotates
92	  it. Set `PARTIFACT_TENANT` to pin a specific world.
93
94	## Layout
95
96	```
97	server.mjs            HTTP server: static + RPC proxy + webhook receiver + SSE + tunnel
98	lib/config.mjs        documented demo credentials, ids, tenant, guard constants
99	lib/partifact.mjs     2026-01 API client (scope-aware), coded-error model (incl. D24 bare strings)
100	lib/webhook.mjs       HMAC-SHA256 verify + replay window + dedup (matches docs §6)
101	lib/tunnel.mjs        cloudflared quick-tunnel manager
102	lib/sse.mjs           Server-Sent-Events hub
103	public/               the Parts Desk single-page UI (no build step)
104	```
105
106	The pre-loaded credentials in `lib/config.mjs` are the **public demo keys** the
107	sandbox docs hand out — not secrets.
108

# Parts Desk

A small web console for a collision-repair shop's **parts manager**: open a
repair job from a VIN, compare recommended supplier offers, place and confirm a
parts order, watch the order status update **live**, and read the final
reconciled invoice.

It runs against the **Partifact 2026-01 Integrations API** sandbox
(`https://partifact-mock.thanhvuttv.workers.dev`) and uses **only documented
endpoints**. Order-status updates are driven by **HMAC-signed webhooks that the
app verifies** end to end.

```
VIN ─► open job ─► recommended offers ─► place order ─► confirm ─► reconciled invoice
        repairer.jobs.get  baskets.latest.get  procurements.insert  procurements.confirm  invoices.list
                                         └──────── live status via verified webhooks ───────┘
```

## Run it

```bash
node server.mjs
# → Parts Desk → http://localhost:8787
```

Open <http://localhost:8787>, click the seeded VIN chip (or paste
`JTDBR32E730012345`), pick the offers, **Place order**, then **Confirm order**.
Watch the status flip to *order confirmed* and the invoice appear — pushed live
via a verified webhook (see the **Live activity** panel).

Requirements: Node ≥ 20. No `npm install` — zero dependencies.

### Webhooks (verified, end to end)

The deployed sandbox runs on Cloudflare's edge and **cannot reach `localhost`**,
so on boot the app brings up a [`cloudflared`](https://developers.cloudflare.com/cloudflare-tunnel/)
quick tunnel (a public `https://…trycloudflare.com` URL, no account/signup) and
**self-registers** its webhook subscription for both the repairer and supplier
integrations. This is exactly the local-dev path the Partifact *Webhooks* doc
recommends.

```bash
brew install cloudflared      # macOS; or see cloudflare docs for your OS
```

Each inbound delivery is verified per the contract before it is acted on:

1. capture the **raw** request bytes (never re-serialise),
2. look up the recipient integration's `pwh_…` secret by `integration_id`,
3. recompute `base64(HMAC-SHA256(secret, rawBody))` and **constant-time compare**
   it against the `partly-hmac-sha256` header,
4. enforce the **5-minute replay window** on `webhook_timestamp`,
5. **dedup** on `message_id` (at-least-once delivery),
6. re-fetch the referenced record by id (payloads are identifier-only) and push
   the fresh state to the browser over SSE.

If `cloudflared` isn't installed, the app falls back to **polling** order status
(also documented), and the header badge shows *Polling mode* instead of
*Webhooks live*.

## How it maps to the API

| Step in the UI            | Wire method(s)                                                            |
| ------------------------- | ------------------------------------------------------------------------- |
| Open job from VIN         | `tier1.prepare` (warm), `repairer.jobs.get`, `…parts.list`, `work-providers.list` |
| Recommended offers        | `repairer.jobs.baskets.latest.get` (12 offers across 3 suppliers)         |
| Place order               | `repairer.procurements.insert` ⚠ → `order_requested`                      |
| Confirm order (supplier)  | `supplier.procurements.confirm` → `order_confirmed`                       |
| Track status (live)       | signed webhooks → `repairer.procurements.get`                             |
| Reconciled invoice        | `repairer.procurements.invoices.list` ⚠                                   |

⚠ `repairer.procurements.insert` and `…invoices.list` are **proposed
extensions** beyond the public 2026-01 contract (which terminates at
`order_confirmed`); their responses carry `x_extension: true`. They are used here
to complete the buyer loop, exactly as labelled in the docs.

### Notes faithful to the contract

- **Single confirmable supplier.** The sandbox holds one supplier credential —
  *Christchurch Toyota — Parts*. An order placed with any other supplier could
  never reach `order_confirmed`, so the Desk refuses such a placement up front
  (mirroring the Procurement MCP's D53 guard) and marks non-confirmable offers
  *quote only* in the UI.
- **Currency is procurement-level (D52).** The basket carries no currency field;
  the NZD label on offers is a presentation convenience. `currency_code` is read
  off the procurement and invoice, where it is a real wire value.
- **Two roles, one process.** Confirming is a supplier-scope action; the server
  holds both pre-loaded demo credentials and picks the right scope per method, as
  the docs endorse for driving the full lifecycle from one caller.
- **Isolated sandbox per run.** Each boot mints a unique `x-partifact-tenant`
  slug → a fresh, identically-seeded world. The **New sandbox** button rotates
  it. Set `PARTIFACT_TENANT` to pin a specific world.

## Layout

```
server.mjs            HTTP server: static + RPC proxy + webhook receiver + SSE + tunnel
lib/config.mjs        documented demo credentials, ids, tenant, guard constants
lib/partifact.mjs     2026-01 API client (scope-aware), coded-error model (incl. D24 bare strings)
lib/webhook.mjs       HMAC-SHA256 verify + replay window + dedup (matches docs §6)
lib/tunnel.mjs        cloudflared quick-tunnel manager
lib/sse.mjs           Server-Sent-Events hub
public/               the Parts Desk single-page UI (no build step)
```

The pre-loaded credentials in `lib/config.mjs` are the **public demo keys** the
sandbox docs hand out — not secrets.


The README exists but the user wants it to clearly document the features and a run guide. Let me rewrite it into a more complete, well-structured document.


Write

# Parts Desk

A small web console for a collision‑repair shop's **parts manager**. Open a
repair job from a VIN, compare recommended supplier offers, place and confirm a
parts order, watch the order status update **live**, and read the final
reconciled invoice.

It runs against the **Partifact 2026‑01 Integrations API** sandbox
(`https://partifact-mock.thanhvuttv.workers.dev`) and uses **only documented
endpoints**. Order‑status changes are pushed to the browser by **HMAC‑signed
webhooks that the app cryptographically verifies** — no polling on the happy
path.

```
VIN ─► open job ─► recommended offers ─► place order ─► confirm ─► reconciled invoice
       jobs.get     baskets.latest.get   procurements.insert  procurements.confirm  invoices.list
                                          └─────── live status via verified webhooks ───────┘
```

---

## Features

- **Open a job from a VIN.** Paste a VIN (or a job reference like
  `CCC-2026-04817`); the Desk warms the catalogue (`tier1.prepare`), fetches the
  job header, parts, basket and insurer, and shows the vehicle, claim and
  parts list.
- **Compare supplier offers with prices.** The recommended basket — 12 competing
  offers across 3 suppliers — is grouped per part, sorted cheapest‑first, each
  with supplier, condition and trade price. You pick one offer per part.
- **Place a parts order.** Selected offers become a procurement
  (`order_requested`); the parts flip `estimated → ordered`. The running total
  and a one‑click "select all confirmable offers" make ordering fast.
- **Confirm the order.** A single click confirms it as the supplier
  (`order_requested → order_confirmed`) and locks it.
- **Watch status update live.** A green **Webhooks live** badge and a **Live
  activity** feed stream every signed event as it arrives — `repairer.procurements`
  and `supplier.procurements`, each shown *signature‑verified*. The order's
  status badge flips in place the instant the verified webhook lands.
- **Reconciled invoice.** After confirmation the invoice appears automatically:
  line items, unit/line totals, per‑line `matched` reconciliation, and the total
  in the procurement's real `currency_code`.
- **Multiple orders per job.** An "Orders on this job" list tracks every
  procurement (including the seeded one) with live status; click **Manage** to
  view/confirm any of them, or **+ Build a different order** to start another.
- **One‑click fresh sandbox.** **New sandbox** rotates to a clean,
  identically‑seeded world (and re‑subscribes webhooks) so the demo is endlessly
  repeatable.

### Safeguards built in (faithful to the contract)

- **Single confirmable supplier.** This sandbox holds one supplier credential —
  *Christchurch Toyota — Parts*. An order placed with any other supplier could
  never reach `order_confirmed`, so the Desk refuses such a placement up front
  (mirroring the Procurement MCP's D53 guard) and marks non‑confirmable offers
  *quote only*.
- **No re‑ordering ordered parts.** Parts already on an order are shown as
  *ordered* and aren't selectable (confirming an order that overlaps already‑
  ordered parts is rejected by the platform).
- **Verified webhooks only.** A delivery that fails signature, replay‑window or
  timestamp checks is rejected (and surfaced in the activity feed) — never acted
  on.

---

## Run it

### Prerequisites

| Requirement   | Why                                                        | Notes |
| ------------- | ---------------------------------------------------------- | ----- |
| **Node ≥ 20** | Uses global `fetch`, `crypto`, ES modules.                 | No `npm install` — **zero dependencies**. |
| **cloudflared** *(recommended)* | Public HTTPS tunnel so the deployed sandbox can deliver webhooks to your machine. | `brew install cloudflared` (macOS) or see the [Cloudflare docs](https://developers.cloudflare.com/cloudflare-tunnel/). Optional — without it the app falls back to polling. |

### Start

```bash
node server.mjs
```

```
  Parts Desk  →  http://localhost:8787
  Sandbox tenant: parts-desk-xxxxxxxx
  Partifact base: https://partifact-mock.thanhvuttv.workers.dev

[tunnel] public url: https://<random>.trycloudflare.com
[webhooks] subscribe repairer … : ok
[webhooks] subscribe supplier … : ok
[webhooks] live: verified deliveries will stream to the browser.
```

Then open **<http://localhost:8787>**. (You always open `localhost` — the
`trycloudflare.com` URL is only the inbound path for webhooks; you never visit
it.)

### Configuration (optional)

| Env var           | Default                     | Purpose |
| ----------------- | --------------------------- | ------- |
| `PORT`            | `8787`                      | Local HTTP port. |
| `PARTIFACT_TENANT`| a fresh unique slug per boot | Pin a specific sandbox world (e.g. to resume one across restarts). |
| `PARTIFACT_BASE`  | the deployed sandbox URL    | Point at another Partifact base. |

```bash
PORT=9000 PARTIFACT_TENANT=my-shop node server.mjs
```

### Stop / restart

`Ctrl‑C` (the tunnel is torn down with it). Restarting re‑opens the tunnel and
re‑subscribes automatically — the address you use stays `http://localhost:8787`.

---

## Using the app (a 60‑second walkthrough)

1. **Open the job.** Click the seeded‑vehicle chip, or paste
   `JTDBR32E730012345`, and hit **Open job**. The 2019 Toyota Corolla front‑end
   job loads with its parts and insurer.
2. **Pick offers.** Under *Recommended supplier offers*, click **Quick‑select
   all from confirmable supplier** (or choose offers per part). Watch the order
   total build on the right.
3. **Place order.** Click **Place order** → status shows **order requested**.
4. **Confirm.** Click **Confirm order (as supplier)** → the badge flips to
   **order confirmed**, driven by a verified webhook (you'll see it land in
   *Live activity* as `supplier.procurements → order_confirmed · signature
   verified`).
5. **Invoice.** The **Reconciled invoice** panel appears — line items, all
   `matched`, total `1,099.00 NZD`.

Hit **New sandbox** anytime to start over from a clean seed.

---

## How the UI maps to the API

| Step in the UI            | Wire method(s)                                                                    |
| ------------------------- | --------------------------------------------------------------------------------- |
| Open job from VIN         | `tier1.prepare` (warm) · `repairer.jobs.get` · `…parts.list` · `repairer.work-providers.list` |
| Recommended offers        | `repairer.jobs.baskets.latest.get`                                                |
| Place order               | `repairer.procurements.insert` ⚠ → `order_requested`                              |
| Confirm order (supplier)  | `supplier.procurements.confirm` → `order_confirmed`                               |
| Track status (live)       | signed webhooks → re‑fetch via `repairer.procurements.get`                         |
| Reconciled invoice        | `repairer.procurements.invoices.list` ⚠                                            |

⚠ `repairer.procurements.insert` and `…invoices.list` are **proposed extensions**
beyond the public 2026‑01 contract (which terminates at `order_confirmed`); their
responses carry `x_extension: true`. They're used here to complete the buyer
loop, exactly as labelled in the docs.

### Webhook verification (the contract, step by step)

Every inbound delivery to `/webhooks/in` is verified before it is acted on:

1. capture the **raw** request bytes (never re‑serialise a parsed object),
2. look up the recipient integration's `pwh_…` secret by `integration_id`,
3. recompute `base64(HMAC-SHA256(secret, rawBody))` and **constant‑time compare**
   against the `partly-hmac-sha256` header,
4. enforce the **5‑minute replay window** on `webhook_timestamp`,
5. **dedup** on `message_id` (deliveries are at‑least‑once),
6. re‑fetch the referenced record by id (payloads are identifier‑only) and push
   the fresh state to the browser over Server‑Sent Events.

If `cloudflared` isn't available, the badge shows **Polling mode** and the app
polls `repairer.procurements.get` for status instead (also a documented path).

### Other contract notes

- **Currency is procurement‑level (D52).** The basket carries no currency field;
  the `NZD` shown on offers is a presentation label. `currency_code` is read off
  the procurement and invoice, where it's a real wire value.
- **Two roles, one process.** Confirming is a supplier‑scope action; the server
  holds both pre‑loaded demo credentials and picks the right scope per method, as
  the docs endorse for driving the whole lifecycle from a single caller. The keys
  in `lib/config.mjs` are the **public demo keys** the docs hand out — not secrets.
- **Bare‑string errors (D24).** `repairer.jobs.parts.insert` returns bare‑string
  error bodies rather than `{type}`; the client normalises both shapes.

---

## Architecture

```
server.mjs          HTTP server: serves the UI, proxies the API (scope-aware
                    credentials), guards placement, receives + verifies webhooks,
                    streams to the browser over SSE, manages the tunnel
lib/config.mjs      documented demo credentials, ids, tenant, guard constants
lib/partifact.mjs   2026-01 API client; serialized calls; verify-after-write;
                    coded-error model (incl. D24 bare strings)
lib/webhook.mjs     HMAC-SHA256 verify + 5-min replay window + message_id dedup
lib/tunnel.mjs      cloudflared quick-tunnel manager
lib/sse.mjs         Server-Sent-Events hub (live updates to the browser)
public/             the Parts Desk single-page UI (index.html, app.js, styles.css)
```

The browser talks only to this local server; the server holds the credentials
and talks to Partifact. Nothing secret reaches the client.

### Two sandbox quirks this app works around

These are behaviours of the mock, handled so the end‑to‑end flow is reliable:

- **Lost writes under concurrency.** The sandbox stores each tenant "world" as
  one mutable object; overlapping requests to the same tenant can drop a write (a
  placed procurement is acknowledged and even fires its webhooks, yet never
  lands). The client **serializes all calls** per process and **verifies after
  every placement** (re‑reading, and re‑placing once if it truly vanished).
- **Confirm crashes on already‑ordered parts.** Confirming an order that overlaps
  parts already on another order errors out. The UI only offers **estimated**
  parts for selection.

---

## Troubleshooting

| Symptom | Cause / fix |
| ------- | ----------- |
| Badge shows **Polling mode** | `cloudflared` isn't installed/reachable. Install it and restart, or keep using polling — status still updates, just by polling. |
| "No repair job found for …" | The wire has no VIN→job search; only the seeded VIN (`JTDBR32E730012345`) or its job reference (`CCC-2026-04817`) resolves. |
| Place button doesn't appear | All confirmable parts are already ordered. Click **New sandbox** for a clean world. |
| Confirm fails with *not confirmable* | The order was placed with a non‑confirmable supplier (only *Christchurch Toyota — Parts* can be confirmed here). |
| Port already in use | Set a different `PORT`, e.g. `PORT=9000 node server.mjs`. |
```


The file /Users/USER/Documents/forfun/p-app-arm1/README.md has been updated successfully. (file state is current in your context — no need to Read it back)

# Parts Desk

A small web console for a collision‑repair shop's **parts manager**. Open a
repair job from a VIN, compare recommended supplier offers, place and confirm a
parts order, watch the order status update **live**, and read the final
reconciled invoice.

It runs against the **Partifact 2026‑01 Integrations API** sandbox
(`https://partifact-mock.thanhvuttv.workers.dev`) and uses **only documented
endpoints**. Order‑status changes are pushed to the browser by **HMAC‑signed
webhooks that the app cryptographically verifies** — no polling on the happy
path.

```
VIN ─► open job ─► recommended offers ─► place order ─► confirm ─► reconciled invoice
       jobs.get     baskets.latest.get   procurements.insert  procurements.confirm  invoices.list
                                          └─────── live status via verified webhooks ───────┘
```

---

## Features

- **Open a job from a VIN.** Paste a VIN (or a job reference like
  `CCC-2026-04817`); the Desk warms the catalogue (`tier1.prepare`), fetches the
  job header, parts, basket and insurer, and shows the vehicle, claim and
  parts list.
- **Compare supplier offers with prices.** The recommended basket — 12 competing
  offers across 3 suppliers — is grouped per part, sorted cheapest‑first, each
  with supplier, condition and trade price. You pick one offer per part.
- **Place a parts order.** Selected offers become a procurement
  (`order_requested`); the parts flip `estimated → ordered`. The running total
  and a one‑click "select all confirmable offers" make ordering fast.
- **Confirm the order.** A single click confirms it as the supplier
  (`order_requested → order_confirmed`) and locks it.
- **Watch status update live.** A green **Webhooks live** badge and a **Live
  activity** feed stream every signed event as it arrives — `repairer.procurements`
  and `supplier.procurements`, each shown *signature‑verified*. The order's
  status badge flips in place the instant the verified webhook lands.
- **Reconciled invoice.** After confirmation the invoice appears automatically:
  line items, unit/line totals, per‑line `matched` reconciliation, and the total
  in the procurement's real `currency_code`.
- **Multiple orders per job.** An "Orders on this job" list tracks every
  procurement (including the seeded one) with live status; click **Manage** to
  view/confirm any of them, or **+ Build a different order** to start another.
- **One‑click fresh sandbox.** **New sandbox** rotates to a clean,
  identically‑seeded world (and re‑subscribes webhooks) so the demo is endlessly
  repeatable.

### Safeguards built in (faithful to the contract)

- **Single confirmable supplier.** This sandbox holds one supplier credential —
  *Christchurch Toyota — Parts*. An order placed with any other supplier could
  never reach `order_confirmed`, so the Desk refuses such a placement up front
  (mirroring the Procurement MCP's D53 guard) and marks non‑confirmable offers
  *quote only*.
- **No re‑ordering ordered parts.** Parts already on an order are shown as
  *ordered* and aren't selectable (confirming an order that overlaps already‑
  ordered parts is rejected by the platform).
- **Verified webhooks only.** A delivery that fails signature, replay‑window or
  timestamp checks is rejected (and surfaced in the activity feed) — never acted
  on.

---

## Run it

### Prerequisites

| Requirement   | Why                                                        | Notes |
| ------------- | ---------------------------------------------------------- | ----- |
| **Node ≥ 20** | Uses global `fetch`, `crypto`, ES modules.                 | No `npm install` — **zero dependencies**. |
| **cloudflared** *(recommended)* | Public HTTPS tunnel so the deployed sandbox can deliver webhooks to your machine. | `brew install cloudflared` (macOS) or see the [Cloudflare docs](https://developers.cloudflare.com/cloudflare-tunnel/). Optional — without it the app falls back to polling. |

### Start

```bash
node server.mjs
```

```
  Parts Desk  →  http://localhost:8787
  Sandbox tenant: parts-desk-xxxxxxxx
  Partifact base: https://partifact-mock.thanhvuttv.workers.dev

[tunnel] public url: https://<random>.trycloudflare.com
[webhooks] subscribe repairer … : ok
[webhooks] subscribe supplier … : ok
[webhooks] live: verified deliveries will stream to the browser.
```

Then open **<http://localhost:8787>**. (You always open `localhost` — the
`trycloudflare.com` URL is only the inbound path for webhooks; you never visit
it.)

### Configuration (optional)

| Env var           | Default                     | Purpose |
| ----------------- | --------------------------- | ------- |
| `PORT`            | `8787`                      | Local HTTP port. |
| `PARTIFACT_TENANT`| a fresh unique slug per boot | Pin a specific sandbox world (e.g. to resume one across restarts). |
| `PARTIFACT_BASE`  | the deployed sandbox URL    | Point at another Partifact base. |

```bash
PORT=9000 PARTIFACT_TENANT=my-shop node server.mjs
```

### Stop / restart

`Ctrl‑C` (the tunnel is torn down with it). Restarting re‑opens the tunnel and
re‑subscribes automatically — the address you use stays `http://localhost:8787`.

---

## Using the app (a 60‑second walkthrough)

1. **Open the job.** Click the seeded‑vehicle chip, or paste
   `JTDBR32E730012345`, and hit **Open job**. The 2019 Toyota Corolla front‑end
   job loads with its parts and insurer.
2. **Pick offers.** Under *Recommended supplier offers*, click **Quick‑select
   all from confirmable supplier** (or choose offers per part). Watch the order
   total build on the right.
3. **Place order.** Click **Place order** → status shows **order requested**.
4. **Confirm.** Click **Confirm order (as supplier)** → the badge flips to
   **order confirmed**, driven by a verified webhook (you'll see it land in
   *Live activity* as `supplier.procurements → order_confirmed · signature
   verified`).
5. **Invoice.** The **Reconciled invoice** panel appears — line items, all
   `matched`, total `1,099.00 NZD`.

Hit **New sandbox** anytime to start over from a clean seed.

---

## How the UI maps to the API

| Step in the UI            | Wire method(s)                                                                    |
| ------------------------- | --------------------------------------------------------------------------------- |
| Open job from VIN         | `tier1.prepare` (warm) · `repairer.jobs.get` · `…parts.list` · `repairer.work-providers.list` |
| Recommended offers        | `repairer.jobs.baskets.latest.get`                                                |
| Place order               | `repairer.procurements.insert` ⚠ → `order_requested`                              |
| Confirm order (supplier)  | `supplier.procurements.confirm` → `order_confirmed`                               |
| Track status (live)       | signed webhooks → re‑fetch via `repairer.procurements.get`                         |
| Reconciled invoice        | `repairer.procurements.invoices.list` ⚠                                            |

⚠ `repairer.procurements.insert` and `…invoices.list` are **proposed extensions**
beyond the public 2026‑01 contract (which terminates at `order_confirmed`); their
responses carry `x_extension: true`. They're used here to complete the buyer
loop, exactly as labelled in the docs.

### Webhook verification (the contract, step by step)

Every inbound delivery to `/webhooks/in` is verified before it is acted on:

1. capture the **raw** request bytes (never re‑serialise a parsed object),
2. look up the recipient integration's `pwh_…` secret by `integration_id`,
3. recompute `base64(HMAC-SHA256(secret, rawBody))` and **constant‑time compare**
   against the `partly-hmac-sha256` header,
4. enforce the **5‑minute replay window** on `webhook_timestamp`,
5. **dedup** on `message_id` (deliveries are at‑least‑once),
6. re‑fetch the referenced record by id (payloads are identifier‑only) and push
   the fresh state to the browser over Server‑Sent Events.

If `cloudflared` isn't available, the badge shows **Polling mode** and the app
polls `repairer.procurements.get` for status instead (also a documented path).

### Other contract notes

- **Currency is procurement‑level (D52).** The basket carries no currency field;
  the `NZD` shown on offers is a presentation label. `currency_code` is read off
  the procurement and invoice, where it's a real wire value.
- **Two roles, one process.** Confirming is a supplier‑scope action; the server
  holds both pre‑loaded demo credentials and picks the right scope per method, as
  the docs endorse for driving the whole lifecycle from a single caller. The keys
  in `lib/config.mjs` are the **public demo keys** the docs hand out — not secrets.
- **Bare‑string errors (D24).** `repairer.jobs.parts.insert` returns bare‑string
  error bodies rather than `{type}`; the client normalises both shapes.

---

## Architecture

```
server.mjs          HTTP server: serves the UI, proxies the API (scope-aware
                    credentials), guards placement, receives + verifies webhooks,
                    streams to the browser over SSE, manages the tunnel
lib/config.mjs      documented demo credentials, ids, tenant, guard constants
lib/partifact.mjs   2026-01 API client; serialized calls; verify-after-write;
                    coded-error model (incl. D24 bare strings)
lib/webhook.mjs     HMAC-SHA256 verify + 5-min replay window + message_id dedup
lib/tunnel.mjs      cloudflared quick-tunnel manager
lib/sse.mjs         Server-Sent-Events hub (live updates to the browser)
public/             the Parts Desk single-page UI (index.html, app.js, styles.css)
```

The browser talks only to this local server; the server holds the credentials
and talks to Partifact. Nothing secret reaches the client.

### Two sandbox quirks this app works around

These are behaviours of the mock, handled so the end‑to‑end flow is reliable:

- **Lost writes under concurrency.** The sandbox stores each tenant "world" as
  one mutable object; overlapping requests to the same tenant can drop a write (a
  placed procurement is acknowledged and even fires its webhooks, yet never
  lands). The client **serializes all calls** per process and **verifies after
  every placement** (re‑reading, and re‑placing once if it truly vanished).
- **Confirm crashes on already‑ordered parts.** Confirming an order that overlaps
  parts already on another order errors out. The UI only offers **estimated**
  parts for selection.

---

## Troubleshooting

| Symptom | Cause / fix |
| ------- | ----------- |
| Badge shows **Polling mode** | `cloudflared` isn't installed/reachable. Install it and restart, or keep using polling — status still updates, just by polling. |
| "No repair job found for …" | The wire has no VIN→job search; only the seeded VIN (`JTDBR32E730012345`) or its job reference (`CCC-2026-04817`) resolves. |
| Place button doesn't appear | All confirmable parts are already ordered. Click **New sandbox** for a clean world. |
| Confirm fails with *not confirmable* | The order was placed with a non‑confirmable supplier (only *Christchurch Toyota — Parts* can be confirmed here). |
| Port already in use | Set a different `PORT`, e.g. `PORT=9000 node server.mjs`. |
```

-A small web console for a collision-repair shop's **parts manager**: open a

+A small web console for a collision‑repair shop's **parts manager**. Open a

parts order, watch the order status update **live**, and read the final

-It runs against the **Partifact 2026-01 Integrations API** sandbox

+It runs against the **Partifact 2026‑01 Integrations API** sandbox

(`https://partifact-mock.thanhvuttv.workers.dev`) and uses **only documented

-endpoints**. Order-status updates are driven by **HMAC-signed webhooks that the

+endpoints**. Order‑status changes are pushed to the browser by **HMAC‑signed

+webhooks that the app cryptographically verifies** — no polling on the happy

-        repairer.jobs.get  baskets.latest.get  procurements.insert  procurements.confirm  invoices.list

-                                         └──────── live status via verified webhooks ───────┘

+       jobs.get     baskets.latest.get   procurements.insert  procurements.confirm  invoices.list

+                                          └─────── live status via verified webhooks ───────┘

+- **Open a job from a VIN.** Paste a VIN (or a job reference like

+  `CCC-2026-04817`); the Desk warms the catalogue (`tier1.prepare`), fetches the

+  job header, parts, basket and insurer, and shows the vehicle, claim and

+- **Compare supplier offers with prices.** The recommended basket — 12 competing

+  offers across 3 suppliers — is grouped per part, sorted cheapest‑first, each

+  with supplier, condition and trade price. You pick one offer per part.

+- **Place a parts order.** Selected offers become a procurement

+  (`order_requested`); the parts flip `estimated → ordered`. The running total

+  and a one‑click "select all confirmable offers" make ordering fast.

+- **Confirm the order.** A single click confirms it as the supplier

+  (`order_requested → order_confirmed`) and locks it.

+- **Watch status update live.** A green **Webhooks live** badge and a **Live

+  activity** feed stream every signed event as it arrives — `repairer.procurements`

+  and `supplier.procurements`, each shown *signature‑verified*. The order's

+  status badge flips in place the instant the verified webhook lands.

+- **Reconciled invoice.** After confirmation the invoice appears automatically:

+  line items, unit/line totals, per‑line `matched` reconciliation, and the total

+  in the procurement's real `currency_code`.

+- **Multiple orders per job.** An "Orders on this job" list tracks every

+  procurement (including the seeded one) with live status; click **Manage** to

+  view/confirm any of them, or **+ Build a different order** to start another.

+- **One‑click fresh sandbox.** **New sandbox** rotates to a clean,

+  identically‑seeded world (and re‑subscribes webhooks) so the demo is endlessly

+### Safeguards built in (faithful to the contract)

+- **Single confirmable supplier.** This sandbox holds one supplier credential —

+  *Christchurch Toyota — Parts*. An order placed with any other supplier could

+  never reach `order_confirmed`, so the Desk refuses such a placement up front

+  (mirroring the Procurement MCP's D53 guard) and marks non‑confirmable offers

+- **No re‑ordering ordered parts.** Parts already on an order are shown as

+  *ordered* and aren't selectable (confirming an order that overlaps already‑

+  ordered parts is rejected by the platform).

+- **Verified webhooks only.** A delivery that fails signature, replay‑window or

+  timestamp checks is rejected (and surfaced in the activity feed) — never acted

+| Requirement   | Why                                                        | Notes |

+| **Node ≥ 20** | Uses global `fetch`, `crypto`, ES modules.                 | No `npm install` — **zero dependencies**. |

+| **cloudflared** *(recommended)* | Public HTTPS tunnel so the deployed sandbox can deliver webhooks to your machine. | `brew install cloudflared` (macOS) or see the [Cloudflare docs](https://developers.cloudflare.com/cloudflare-tunnel/). Optional — without it the app falls back to polling. |

-Open <http://localhost:8787>, click the seeded VIN chip (or paste

-`JTDBR32E730012345`), pick the offers, **Place order**, then **Confirm order**.

-Watch the status flip to *order confirmed* and the invoice appear — pushed live

-via a verified webhook (see the **Live activity** panel).

+  Partifact base: https://partifact-mock.thanhvuttv.workers.dev

-Requirements: Node ≥ 20. No `npm install` — zero dependencies.

+[tunnel] public url: https://<random>.trycloudflare.com

+[webhooks] live: verified deliveries will stream to the browser.

+Then open **<http://localhost:8787>**. (You always open `localhost` — the

+`trycloudflare.com` URL is only the inbound path for webhooks; you never visit

-The deployed sandbox runs on Cloudflare's edge and **cannot reach `localhost`**,

-so on boot the app brings up a [`cloudflared`](https://developers.cloudflare.com/cloudflare-tunnel/)

-quick tunnel (a public `https://…trycloudflare.com` URL, no account/signup) and

-**self-registers** its webhook subscription for both the repairer and supplier

-integrations. This is exactly the local-dev path the Partifact *Webhooks* doc

+| Env var           | Default                     | Purpose |

+| `PORT`            | `8787`                      | Local HTTP port. |

+| `PARTIFACT_TENANT`| a fresh unique slug per boot | Pin a specific sandbox world (e.g. to resume one across restarts). |

+| `PARTIFACT_BASE`  | the deployed sandbox URL    | Point at another Partifact base. |

-brew install cloudflared      # macOS; or see cloudflare docs for your OS

+PORT=9000 PARTIFACT_TENANT=my-shop node server.mjs

-Each inbound delivery is verified per the contract before it is acted on:

-1. capture the **raw** request bytes (never re-serialise),

-2. look up the recipient integration's `pwh_…` secret by `integration_id`,

-3. recompute `base64(HMAC-SHA256(secret, rawBody))` and **constant-time compare**

-   it against the `partly-hmac-sha256` header,

-4. enforce the **5-minute replay window** on `webhook_timestamp`,

-5. **dedup** on `message_id` (at-least-once delivery),

-6. re-fetch the referenced record by id (payloads are identifier-only) and push

-   the fresh state to the browser over SSE.

+`Ctrl‑C` (the tunnel is torn down with it). Restarting re‑opens the tunnel and

+re‑subscribes automatically — the address you use stays `http://localhost:8787`.

-If `cloudflared` isn't installed, the app falls back to **polling** order status

-(also documented), and the header badge shows *Polling mode* instead of

+## Using the app (a 60‑second walkthrough)

-| Step in the UI            | Wire method(s)                                                            |

-| Open job from VIN         | `tier1.prepare` (warm), `repairer.jobs.get`, `…parts.list`, `work-providers.list` |

-| Recommended offers        | `repairer.jobs.baskets.latest.get` (12 offers across 3 suppliers)         |

-| Place order               | `repairer.procurements.insert` ⚠ → `order_requested`                      |

-| Confirm order (supplier)  | `supplier.procurements.confirm` → `order_confirmed`                       |

-| Track status (live)       | signed webhooks → `repairer.procurements.get`                             |

-| Reconciled invoice        | `repairer.procurements.invoices.list` ⚠                                   |

+1. **Open the job.** Click the seeded‑vehicle chip, or paste

+   `JTDBR32E730012345`, and hit **Open job**. The 2019 Toyota Corolla front‑end

+   job loads with its parts and insurer.

+2. **Pick offers.** Under *Recommended supplier offers*, click **Quick‑select

+   all from confirmable supplier** (or choose offers per part). Watch the order

+3. **Place order.** Click **Place order** → status shows **order requested**.

+4. **Confirm.** Click **Confirm order (as supplier)** → the badge flips to

+   **order confirmed**, driven by a verified webhook (you'll see it land in

+   *Live activity* as `supplier.procurements → order_confirmed · signature

+5. **Invoice.** The **Reconciled invoice** panel appears — line items, all

-⚠ `repairer.procurements.insert` and `…invoices.list` are **proposed

-extensions** beyond the public 2026-01 contract (which terminates at

-`order_confirmed`); their responses carry `x_extension: true`. They are used here

-to complete the buyer loop, exactly as labelled in the docs.

+Hit **New sandbox** anytime to start over from a clean seed.

-- **Single confirmable supplier.** The sandbox holds one supplier credential —

-  *Christchurch Toyota — Parts*. An order placed with any other supplier could

-  never reach `order_confirmed`, so the Desk refuses such a placement up front

-  (mirroring the Procurement MCP's D53 guard) and marks non-confirmable offers

-- **Currency is procurement-level (D52).** The basket carries no currency field;

-  the NZD label on offers is a presentation convenience. `currency_code` is read

-  off the procurement and invoice, where it is a real wire value.

-- **Two roles, one process.** Confirming is a supplier-scope action; the server

-  holds both pre-loaded demo credentials and picks the right scope per method, as

-  the docs endorse for driving the full lifecycle from one caller.

-- **Isolated sandbox per run.** Each boot mints a unique `x-partifact-tenant`

-  slug → a fresh, identically-seeded world. The **New sandbox** button rotates

-  it. Set `PARTIFACT_TENANT` to pin a specific world.

+| Step in the UI            | Wire method(s)                                                                    |

+| Open job from VIN         | `tier1.prepare` (warm) · `repairer.jobs.get` · `…parts.list` · `repairer.work-providers.list` |

+| Recommended offers        | `repairer.jobs.baskets.latest.get`                                                |

+| Place order               | `repairer.procurements.insert` ⚠ → `order_requested`                              |

+| Confirm order (supplier)  | `supplier.procurements.confirm` → `order_confirmed`                               |

+| Track status (live)       | signed webhooks → re‑fetch via `repairer.procurements.get`                         |

+| Reconciled invoice        | `repairer.procurements.invoices.list` ⚠                                            |

+⚠ `repairer.procurements.insert` and `…invoices.list` are **proposed extensions**

+beyond the public 2026‑01 contract (which terminates at `order_confirmed`); their

+responses carry `x_extension: true`. They're used here to complete the buyer

+### Webhook verification (the contract, step by step)

+Every inbound delivery to `/webhooks/in` is verified before it is acted on:

+1. capture the **raw** request bytes (never re‑serialise a parsed object),

+2. look up the recipient integration's `pwh_…` secret by `integration_id`,

+3. recompute `base64(HMAC-SHA256(secret, rawBody))` and **constant‑time compare**

+   against the `partly-hmac-sha256` header,

+4. enforce the **5‑minute replay window** on `webhook_timestamp`,

+5. **dedup** on `message_id` (deliveries are at‑least‑once),

+6. re‑fetch the referenced record by id (payloads are identifier‑only) and push

+   the fresh state to the browser over Server‑Sent Events.

+If `cloudflared` isn't available, the badge shows **Polling mode** and the app

+polls `repairer.procurements.get` for status instead (also a documented path).

+- **Currency is procurement‑level (D52).** The basket carries no currency field;

+  the `NZD` shown on offers is a presentation label. `currency_code` is read off

+  the procurement and invoice, where it's a real wire value.

+- **Two roles, one process.** Confirming is a supplier‑scope action; the server

+  holds both pre‑loaded demo credentials and picks the right scope per method, as

+  the docs endorse for driving the whole lifecycle from a single caller. The keys

+  in `lib/config.mjs` are the **public demo keys** the docs hand out — not secrets.

+- **Bare‑string errors (D24).** `repairer.jobs.parts.insert` returns bare‑string

+  error bodies rather than `{type}`; the client normalises both shapes.

-server.mjs            HTTP server: static + RPC proxy + webhook receiver + SSE + tunnel

-lib/config.mjs        documented demo credentials, ids, tenant, guard constants

-lib/partifact.mjs     2026-01 API client (scope-aware), coded-error model (incl. D24 bare strings)

-lib/webhook.mjs       HMAC-SHA256 verify + replay window + dedup (matches docs §6)

-lib/tunnel.mjs        cloudflared quick-tunnel manager

-lib/sse.mjs           Server-Sent-Events hub

-public/               the Parts Desk single-page UI (no build step)

+server.mjs          HTTP server: serves the UI, proxies the API (scope-aware

+                    credentials), guards placement, receives + verifies webhooks,

+                    streams to the browser over SSE, manages the tunnel

+lib/config.mjs      documented demo credentials, ids, tenant, guard constants

+lib/partifact.mjs   2026-01 API client; serialized calls; verify-after-write;

+                    coded-error model (incl. D24 bare strings)

+lib/webhook.mjs     HMAC-SHA256 verify + 5-min replay window + message_id dedup

+lib/tunnel.mjs      cloudflared quick-tunnel manager

+lib/sse.mjs         Server-Sent-Events hub (live updates to the browser)

+public/             the Parts Desk single-page UI (index.html, app.js, styles.css)

-The pre-loaded credentials in `lib/config.mjs` are the **public demo keys** the

+The browser talks only to this local server; the server holds the credentials

+and talks to Partifact. Nothing secret reaches the client.

+### Two sandbox quirks this app works around

+These are behaviours of the mock, handled so the end‑to‑end flow is reliable:

+- **Lost writes under concurrency.** The sandbox stores each tenant "world" as

+  one mutable object; overlapping requests to the same tenant can drop a write (a

+  placed procurement is acknowledged and even fires its webhooks, yet never

+  lands). The client **serializes all calls** per process and **verifies after

+  every placement** (re‑reading, and re‑placing once if it truly vanished).

+- **Confirm crashes on already‑ordered parts.** Confirming an order that overlaps

+  parts already on another order errors out. The UI only offers **estimated**

+| Badge shows **Polling mode** | `cloudflared` isn't installed/reachable. Install it and restart, or keep using polling — status still updates, just by polling. |

+| "No repair job found for …" | The wire has no VIN→job search; only the seeded VIN (`JTDBR32E730012345`) or its job reference (`CCC-2026-04817`) resolves. |

+| Place button doesn't appear | All confirmable parts are already ordered. Click **New sandbox** for a clean world. |

+| Confirm fails with *not confirmable* | The order was placed with a non‑confirmable supplier (only *Christchurch Toyota — Parts* can be confirmed here). |

+| Port already in use | Set a different `PORT`, e.g. `PORT=9000 node server.mjs`. |

# Parts Desk

A small web console for a collision-repair shop's **parts manager**: open a
repair job from a VIN, compare recommended supplier offers, place and confirm a
parts order, watch the order status update **live**, and read the final
reconciled invoice.

It runs against the **Partifact 2026-01 Integrations API** sandbox
(`https://partifact-mock.thanhvuttv.workers.dev`) and uses **only documented
endpoints**. Order-status updates are driven by **HMAC-signed webhooks that the
app verifies** end to end.

```
VIN ─► open job ─► recommended offers ─► place order ─► confirm ─► reconciled invoice
        repairer.jobs.get  baskets.latest.get  procurements.insert  procurements.confirm  invoices.list
                                         └──────── live status via verified webhooks ───────┘
```

## Run it

```bash
node server.mjs
# → Parts Desk → http://localhost:8787
```

Open <http://localhost:8787>, click the seeded VIN chip (or paste
`JTDBR32E730012345`), pick the offers, **Place order**, then **Confirm order**.
Watch the status flip to *order confirmed* and the invoice appear — pushed live
via a verified webhook (see the **Live activity** panel).

Requirements: Node ≥ 20. No `npm install` — zero dependencies.

### Webhooks (verified, end to end)

The deployed sandbox runs on Cloudflare's edge and **cannot reach `localhost`**,
so on boot the app brings up a [`cloudflared`](https://developers.cloudflare.com/cloudflare-tunnel/)
quick tunnel (a public `https://…trycloudflare.com` URL, no account/signup) and
**self-registers** its webhook subscription for both the repairer and supplier
integrations. This is exactly the local-dev path the Partifact *Webhooks* doc
recommends.

```bash
brew install cloudflared      # macOS; or see cloudflare docs for your OS
```

Each inbound delivery is verified per the contract before it is acted on:

1. capture the **raw** request bytes (never re-serialise),
2. look up the recipient integration's `pwh_…` secret by `integration_id`,
3. recompute `base64(HMAC-SHA256(secret, rawBody))` and **constant-time compare**
   it against the `partly-hmac-sha256` header,
4. enforce the **5-minute replay window** on `webhook_timestamp`,
5. **dedup** on `message_id` (at-least-once delivery),
6. re-fetch the referenced record by id (payloads are identifier-only) and push
   the fresh state to the browser over SSE.

If `cloudflared` isn't installed, the app falls back to **polling** order status
(also documented), and the header badge shows *Polling mode* instead of
*Webhooks live*.

## How it maps to the API

| Step in the UI            | Wire method(s)                                                            |
| ------------------------- | ------------------------------------------------------------------------- |
| Open job from VIN         | `tier1.prepare` (warm), `repairer.jobs.get`, `…parts.list`, `work-providers.list` |
| Recommended offers        | `repairer.jobs.baskets.latest.get` (12 offers across 3 suppliers)         |
| Place order               | `repairer.procurements.insert` ⚠ → `order_requested`                      |
| Confirm order (supplier)  | `supplier.procurements.confirm` → `order_confirmed`                       |
| Track status (live)       | signed webhooks → `repairer.procurements.get`                             |
| Reconciled invoice        | `repairer.procurements.invoices.list` ⚠                                   |

⚠ `repairer.procurements.insert` and `…invoices.list` are **proposed
extensions** beyond the public 2026-01 contract (which terminates at
`order_confirmed`); their responses carry `x_extension: true`. They are used here
to complete the buyer loop, exactly as labelled in the docs.

### Notes faithful to the contract

- **Single confirmable supplier.** The sandbox holds one supplier credential —
  *Christchurch Toyota — Parts*. An order placed with any other supplier could
  never reach `order_confirmed`, so the Desk refuses such a placement up front
  (mirroring the Procurement MCP's D53 guard) and marks non-confirmable offers
  *quote only* in the UI.
- **Currency is procurement-level (D52).** The basket carries no currency field;
  the NZD label on offers is a presentation convenience. `currency_code` is read
  off the procurement and invoice, where it is a real wire value.
- **Two roles, one process.** Confirming is a supplier-scope action; the server
  holds both pre-loaded demo credentials and picks the right scope per method, as
  the docs endorse for driving the full lifecycle from one caller.
- **Isolated sandbox per run.** Each boot mints a unique `x-partifact-tenant`
  slug → a fresh, identically-seeded world. The **New sandbox** button rotates
  it. Set `PARTIFACT_TENANT` to pin a specific world.

## Layout

```
server.mjs            HTTP server: static + RPC proxy + webhook receiver + SSE + tunnel
lib/config.mjs        documented demo credentials, ids, tenant, guard constants
lib/partifact.mjs     2026-01 API client (scope-aware), coded-error model (incl. D24 bare strings)
lib/webhook.mjs       HMAC-SHA256 verify + replay window + dedup (matches docs §6)
lib/tunnel.mjs        cloudflared quick-tunnel manager
lib/sse.mjs           Server-Sent-Events hub
public/               the Parts Desk single-page UI (no build step)
```

The pre-loaded credentials in `lib/config.mjs` are the **public demo keys** the
sandbox docs hand out — not secrets.


Let me fix a stray code fence I left at the end.


Edit

| Port already in use | Set a different `PORT`, e.g. `PORT=9000 node server.mjs`. |
```

| Port already in use | Set a different `PORT`, e.g. `PORT=9000 node server.mjs`. |


| Port already in use | Set a different `PORT`, e.g. `PORT=9000 node server.mjs`. |
```

| Place button doesn't appear | All confirmable parts are already ordered. Click **New sandbox** for a clean world. |

| Confirm fails with *not confirmable* | The order was placed with a non‑confirmable supplier (only *Christchurch Toyota — Parts* can be confirmed here). |


Done. The README is rewritten. Let me confirm it's clean and the server is still running for you.


Bash

cd /Users/USER/Documents/forfun/p-app-arm1
echo "fences: $(grep -c '```' README.md) (should be even)"
echo "lines: $(wc -l < README.md)"
echo "server: pid $(cat .server.pid 2>/dev/null), listening $(lsof -nP -iTCP:8787 -sTCP:LISTEN >/dev/null 2>&1 && echo yes || echo no), mode $(/usr/bin/curl -sS --max-time 5 http://localhost:8787/api/state | jq -r .webhookMode)"

Validate README and confirm server status


fences: 10 (should be even)
lines:      222
server: pid 74008, listening yes, mode webhook


`README.md` is written and well‑formed (balanced code fences), and the server is still up — **http://localhost:8787**, webhooks live.

## What the README covers

**Features** — the full parts‑manager workflow plus the built‑in safeguards:
- Open a job from a VIN → compare 12 supplier offers with prices → place → confirm → reconciled invoice
- Live status via the **Webhooks live** badge + activity feed
- "Orders on this job" list, multiple orders, one‑click fresh sandbox
- Safeguards: single‑confirmable‑supplier guard, no re‑ordering ordered parts, verified‑webhooks‑only

**Run guide**
- Prerequisites table (Node ≥ 20; optional `cloudflared` with the `brew install` line and what you lose without it)
- `node server.mjs` with annotated expected boot output, and the note that you open `localhost` (not the tunnel URL)
- Optional config table (`PORT`, `PARTIFACT_TENANT`, `PARTIFACT_BASE`) with an example
- Stop/restart behavior
- A 60‑second click‑by‑click walkthrough

**Reference** — UI→API method mapping, the 6‑step webhook verification, contract notes (D52 currency, two‑roles‑one‑process, D24 bare‑string errors), the file‑by‑file architecture, the two sandbox quirks the app works around, and a troubleshooting table.

It's at `/Users/USER/Documents/forfun/p-app-arm1/README.md` (222 lines). The app itself is unchanged and still running on pid `74008` — open http://localhost:8787 whenever you like.


Help me with 2 things
- Deploy to Cloudflare worker using the account I already setup
- Write the full transcripts of this session, take reference from this transcript: /Users/USER/Documents/forfun/p-app-arm3/SESSION_TRANSCRIPT.md