feat(insights): detect parts/catalog coverage failures (client + server)

Surfaces "vehicle resolved but no parts/categories" — Sase's #1 churn
signal, previously invisible to insights (a prospect emailed support
instead of any insight firing).

Client (PostHog session tagger):
- fetch the catalog_*/category_view_changed/empty_catalog_cta_clicked
  event family (was never pulled) and tag parts_render_blocked (P1) /
  catalog_empty_result (P2), scoped to the real /dashboard product (demo
  excluded). Harden the search-affordance-misuse guard so a real parts
  failure is never suppressed. Route both tags to bug_triage.

Server (decode-log catalog gaps):
- new catalog-gap-detect worker job (every 6h) -> panel internal API
  /api/internal/catalog-gap-check aggregates "No catalog - identified as
  X" query_logs failures by brand -> upserts catalog_coverage_gap
  insights (Telegram on P1), respecting founder triage. Add NO_CATALOG
  error bucket.

Validated: both apps typecheck clean; tagger smoke 21/21; aggregation
over 90d real data yields 13 brand gaps (Renault/Fiat/Honda P1).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/web/src/app/api/internal/catalog-gap-check/route.ts

@@ -0,0 +1,29 @@
+import { NextResponse } from "next/server";
+import { timingSafeEqual } from "node:crypto";
+import { detectCatalogCoverageGaps } from "@/lib/sase/catalog-coverage";
+
+export const dynamic = "force-dynamic";
+
+const INTERNAL_TOKEN = process.env.INTERNAL_WORKER_TOKEN ?? "";
+
+function validToken(req: Request): boolean {
+  if (!INTERNAL_TOKEN) return false;
+  const provided = req.headers.get("x-internal-worker-token") ?? "";
+  if (!provided) return false;
+  const a = Buffer.from(provided);
+  const b = Buffer.from(INTERNAL_TOKEN);
+  if (a.length !== b.length) return false;
+  return timingSafeEqual(a, b);
+}
+
+export async function GET(req: Request) {
+  if (!validToken(req)) {
+    return NextResponse.json({ ok: false, error: "unauthorized" }, { status: 401 });
+  }
+  try {
+    const gaps = await detectCatalogCoverageGaps({ windowDays: 7, minFailures: 3 });
+    return NextResponse.json({ ok: true, gaps });
+  } catch (e) {
+    return NextResponse.json({ ok: false, error: (e as Error).message }, { status: 500 });
+  }
+}

apps/web/src/lib/sase/catalog-coverage.ts

@@ -0,0 +1,77 @@
+import { saseDb } from "@/lib/db-sase";
+
+// ─── Catalog coverage gaps ────────────────────────────────────────────────
+// The single biggest VIN-decode failure mode is "No catalog — identified as X":
+// the decoder *recognises* the vehicle (brand/year) but Sase has no parts
+// catalog mapped for it, so the user sees their car but no parts. These rows
+// land in query_logs with success=false and error_message starting
+// "No catalog — identified as <Brand> [<Year>]". We aggregate them by brand so
+// the worker can raise ONE insight per brand-gap instead of per failed query.
+export type CatalogGap = {
+  brand: string;
+  failures: number;
+  uniqueUsers: number;
+  labels: string[]; // distinct "<Brand> <Year>" identities seen, e.g. ["Renault 2004","Renault 2006"]
+  years: number[]; // parsed model years (sorted)
+  firstSeen: string; // ISO
+  lastSeen: string; // ISO
+  windowDays: number;
+};
+
+export async function detectCatalogCoverageGaps(
+  opts: { windowDays?: number; minFailures?: number } = {},
+): Promise<CatalogGap[]> {
+  const windowDays = opts.windowDays ?? 7;
+  const minFailures = opts.minFailures ?? 3;
+
+  // Brand is the first token of the identified label; initcap() folds HONDA/Honda
+  // into one group. array_agg collects the distinct "<Brand> <Year>" identities so
+  // the worker can show the affected model years.
+  const rows = await saseDb.$queryRaw<
+    Array<{
+      brand: string;
+      failures: number;
+      unique_users: number;
+      first_seen: Date;
+      last_seen: Date;
+      labels: string[];
+    }>
+  >`
+    WITH nc AS (
+      SELECT user_id, created_at,
+             trim(substring(error_message FROM 'identified as (.*)$')) AS label
+      FROM query_logs
+      WHERE success = false
+        AND created_at > now() - make_interval(days => ${windowDays})
+        AND error_message LIKE 'No catalog%'
+    )
+    SELECT
+      initcap(split_part(label, ' ', 1)) AS brand,
+      count(*)::int                       AS failures,
+      count(distinct user_id)::int        AS unique_users,
+      min(created_at)                     AS first_seen,
+      max(created_at)                     AS last_seen,
+      array_agg(DISTINCT label ORDER BY label) AS labels
+    FROM nc
+    WHERE label IS NOT NULL AND label <> ''
+    GROUP BY 1
+    HAVING count(*) >= ${minFailures}
+    ORDER BY failures DESC
+  `;
+
+  return rows.map((r) => {
+    const years = Array.from(
+      new Set(r.labels.flatMap((l) => (l.match(/\b(?:19|20)\d{2}\b/g) ?? []).map(Number))),
+    ).sort((a, b) => a - b);
+    return {
+      brand: r.brand,
+      failures: r.failures,
+      uniqueUsers: r.unique_users,
+      labels: r.labels,
+      years,
+      firstSeen: r.first_seen.toISOString(),
+      lastSeen: r.last_seen.toISOString(),
+      windowDays,
+    };
+  });
+}

apps/web/src/lib/sase/vin-decode.ts

@@ -260,6 +260,7 @@ export type ErrorBucketRow = {
 
 export const ERROR_BUCKET_KEYS = [
   "BUDGET_EXCEEDED",
+  "NO_CATALOG",
   "UNKNOWN_VIN",
   "TIMEOUT",
   "INVALID_VIN",
@@ -273,6 +274,9 @@ export type ErrorBucketKey = (typeof ERROR_BUCKET_KEYS)[number];
 
 const ERROR_PATTERNS: Array<{ key: ErrorBucketKey; matchers: RegExp[] }> = [
   { key: "BUDGET_EXCEEDED", matchers: [/budget/i, /aborted/i] },
+  // Vehicle identified but no parts catalog mapped — the #1 "OTHER" failure and
+  // the server-side twin of the catalog_empty_result insight signal.
+  { key: "NO_CATALOG", matchers: [/no catalog/i] },
   { key: "UNKNOWN_VIN", matchers: [/unknown vin/i, /tanınamadı/i, /destekl/i] },
   { key: "TIMEOUT", matchers: [/timeout/i, /timed out/i] },
   { key: "INVALID_VIN", matchers: [/geçersiz/i, /invalid vin/i] },

apps/worker/src/jobs/catalog-gap-detect.ts

@@ -0,0 +1,196 @@
+import { Prisma } from "@prisma/client";
+import { prisma } from "../db";
+import { alertCatalogGap, isTelegramConfigured } from "../lib/telegram";
+
+// Server-side companion to the session-driven insight pipeline. The behavioural
+// pipeline (PostHog → tagger → analyze) catches "user resolved a vehicle but saw
+// no parts" from client events (catalog_empty_result / parts_render_blocked).
+// This job catches the SAME failure from the server side — query_logs rows where
+// decode succeeded at identifying the car but no parts catalog exists
+// ("No catalog — identified as X") — and raises one Insight per brand-gap into
+// the founder's existing inbox. Panel owns the Sase DB; we fetch the aggregate
+// over the internal API (same trust model as vin-anomaly-detect) and write rows.
+
+const PANEL_BASE =
+  process.env.PANEL_INTERNAL_URL ?? process.env.PANEL_PUBLIC_URL ?? "http://panel-web:3000";
+const PANEL_PUBLIC = process.env.PANEL_PUBLIC_URL ?? "https://sp.semih.ai";
+const WORKER_TOKEN = process.env.INTERNAL_WORKER_TOKEN ?? "";
+const PROJECT_KEY = process.env.INSIGHT_PROJECT_KEY ?? "sase";
+
+type CatalogGap = {
+  brand: string;
+  failures: number;
+  uniqueUsers: number;
+  labels: string[];
+  years: number[];
+  firstSeen: string;
+  lastSeen: string;
+  windowDays: number;
+};
+type CheckResponse = { ok: boolean; error?: string; gaps?: CatalogGap[] };
+
+type Summary = {
+  ok: boolean;
+  gaps: number;
+  created: number;
+  updated: number;
+  alertsFired: number;
+  reason?: string;
+};
+
+function brandSlug(b: string): string {
+  return b.toLowerCase().replace(/[^a-z0-9]+/g, "-").replace(/(^-|-$)/g, "");
+}
+
+// P1 once a gap bites real breadth (≥4 distinct users or ≥15 failed lookups in
+// the window) — a core-value failure for a whole brand; otherwise P2.
+function severityFor(g: CatalogGap): "P1" | "P2" {
+  return g.uniqueUsers >= 4 || g.failures >= 15 ? "P1" : "P2";
+}
+function priorityFor(sev: string, users: number): number {
+  return (sev === "P1" ? 80 : 55) + Math.min(15, users);
+}
+
+// Shape the body around keys the insight detail page already renders
+// (hypothesis / affected_route / user_impact_estimate / suggested_investigation /
+// reproduce_steps); extra keys still show in the Raw JSON panel.
+function buildBody(g: CatalogGap): Prisma.InputJsonValue {
+  const yrs = g.years.length ? ` (${g.years[0]}–${g.years[g.years.length - 1]})` : "";
+  const labelList = g.labels.slice(0, 12).join(", ");
+  return {
+    summary: `${g.brand}${yrs}: araç decode'da tanınıyor ama parça kataloğu bulunamıyor ("No catalog"). Son ${g.windowDays} günde ${g.failures} başarısız sorgu / ${g.uniqueUsers} kullanıcı.`,
+    hypothesis: `Decode aracı doğru tanıyor ama "tanınan araç → parça kataloğu" eşlemesi ${g.brand} için boş dönüyor. Hatalar belirli model yıllarında kümeleniyor (${labelList}) → muhtemelen katalog MAPPING eksikliği (EMEX/PCAT kaynağında veri var ama brand/yıl eşleşmiyor) ya da o segment için kaynak verisi hiç yok.`,
+    affected_route: `/dashboard/catalog/${g.brand}, /dashboard/vehicles/:id (decode → "No catalog")`,
+    user_impact_estimate: `${g.uniqueUsers} kullanıcı son ${g.windowDays} günde ${g.brand} için parça göremedi → doğrudan churn sinyali. ${g.brand} TR pazarında yaygın bir marka.`,
+    suggested_investigation: [
+      `vehicles.service'teki katalog lookup zincirinde "No catalog" branch'ini incele (apps/api .../vehicles/vehicles.service.ts)`,
+      `sase-catalog-src-emex / sase-catalog-src-pcat DB'lerinde ${g.brand} (${labelList}) var mı — veri mi eksik, mapping mi bozuk?`,
+      `Tanınan brand/model_year → catalog brand/subcatalog eşlemesini kontrol et`,
+    ],
+    reproduce_steps: [
+      `Katalogdan ${g.brand} seç (ya da bu markaya ait bir VIN decode et)`,
+      `Bir model/yıl seç (${g.labels[0] ?? g.brand})`,
+      `Parça/kategori yerine boş sonuç / "No catalog" gözlenir`,
+    ],
+    suggested_fix_effort: "M",
+    affected_labels: g.labels,
+    total_failures: g.failures,
+    unique_users: g.uniqueUsers,
+    window_days: g.windowDays,
+  };
+}
+
+export async function runCatalogGapDetect(): Promise<Summary> {
+  if (!WORKER_TOKEN) {
+    return { ok: false, gaps: 0, created: 0, updated: 0, alertsFired: 0, reason: "INTERNAL_WORKER_TOKEN not set" };
+  }
+
+  let res: Response;
+  try {
+    res = await fetch(`${PANEL_BASE}/api/internal/catalog-gap-check`, {
+      headers: { "x-internal-worker-token": WORKER_TOKEN, "cache-control": "no-store" },
+    });
+  } catch (e) {
+    return { ok: false, gaps: 0, created: 0, updated: 0, alertsFired: 0, reason: `fetch failed: ${(e as Error).message}` };
+  }
+  if (!res.ok) {
+    return { ok: false, gaps: 0, created: 0, updated: 0, alertsFired: 0, reason: `panel returned ${res.status}` };
+  }
+  const data = (await res.json()) as CheckResponse;
+  if (!data.ok) {
+    return { ok: false, gaps: 0, created: 0, updated: 0, alertsFired: 0, reason: data.error };
+  }
+
+  const gaps = data.gaps ?? [];
+  const day = new Date().toISOString().slice(0, 10);
+  let created = 0;
+  let updated = 0;
+  let alertsFired = 0;
+
+  for (const g of gaps) {
+    const fingerprint = `catalog_gap:${brandSlug(g.brand)}`;
+    const sev = severityFor(g);
+    const body = buildBody(g);
+    const title = `Katalog yok: ${g.brand} — ${g.uniqueUsers} kullanıcı parça göremiyor (son ${g.windowDays}g)`;
+
+    const existing = await prisma.insight.findUnique({
+      where: { projectKey_fingerprint: { projectKey: PROJECT_KEY, fingerprint } },
+    });
+
+    if (existing) {
+      // Refresh counts/severity but RESPECT founder triage: a dismissed/duplicate
+      // gap stays dismissed (no resurrection). A gap the founder had already
+      // validated/shipped that is failing again flips to "regressed" + alerts.
+      const regressed = ["validated", "shipped"].includes(existing.status);
+      await prisma.insight.update({
+        where: { id: existing.id },
+        data: {
+          title,
+          body,
+          severity: sev,
+          occurrenceCount: g.failures,
+          uniqueUserCount: g.uniqueUsers,
+          lastSeenAt: new Date(g.lastSeen),
+          priorityScore: priorityFor(sev, g.uniqueUsers),
+          ...(regressed ? { status: "regressed", regressionDetected: true } : {}),
+        },
+      });
+      updated++;
+      if (regressed && isTelegramConfigured()) {
+        const r = await alertCatalogGap({
+          brand: g.brand,
+          failures: g.failures,
+          uniqueUsers: g.uniqueUsers,
+          windowDays: g.windowDays,
+          severity: sev,
+          insightId: existing.id,
+          panelUrl: PANEL_PUBLIC,
+          day,
+          regressed: true,
+        });
+        if (r.ok && !r.deduped) alertsFired++;
+      }
+      continue;
+    }
+
+    const row = await prisma.insight.create({
+      data: {
+        projectKey: PROJECT_KEY,
+        type: "catalog_coverage_gap",
+        severity: sev,
+        status: "new",
+        fingerprint,
+        title,
+        body,
+        relatedSessionIds: [],
+        occurrenceCount: g.failures,
+        uniqueUserCount: g.uniqueUsers,
+        firstSeenAt: new Date(g.firstSeen),
+        lastSeenAt: new Date(g.lastSeen),
+        confidence: 1.0,
+        priorityScore: priorityFor(sev, g.uniqueUsers),
+        sourcePromptTag: "catalog_gap_detector",
+        sourcePromptVersion: 0,
+        sourceModel: "rule:catalog-gap",
+        sourceCostUsd: 0,
+      },
+    });
+    created++;
+    if (isTelegramConfigured()) {
+      const r = await alertCatalogGap({
+        brand: g.brand,
+        failures: g.failures,
+        uniqueUsers: g.uniqueUsers,
+        windowDays: g.windowDays,
+        severity: sev,
+        insightId: row.id,
+        panelUrl: PANEL_PUBLIC,
+        day,
+        regressed: false,
+      });
+      if (r.ok && !r.deduped) alertsFired++;
+    }
+  }
+
+  return { ok: true, gaps: gaps.length, created, updated, alertsFired };
+}

apps/worker/src/lib/event-taxonomy.ts

@@ -47,6 +47,23 @@ export const TRACKED_EVENTS: string[] = [
   "parts_export_completed",
   "oem_code_copied",
 
+  // Catalog / category browsing — Sase.tr's core value path (vehicle → categories
+  // → parts). These were previously NOT fetched, so a vehicle that resolved but
+  // rendered no parts/categories (the #1 churn complaint) was invisible to the
+  // tagger. `empty_catalog_cta_clicked` / `parts_panel_viewed.parts_count=0` are
+  // the concrete empty-state signals; the rest let us tell "drilled in but got
+  // nothing" apart from "decoded and bounced".
+  "catalog_search_opened",
+  "catalog_brands_viewed",
+  "catalog_brand_clicked",
+  "catalog_subcatalog_selected",
+  "catalog_models_viewed",
+  "catalog_model_clicked",
+  "catalog_locked_brand_upgrade_clicked",
+  "category_view_changed",
+  "empty_catalog_cta_clicked",
+  "part_reference_clicked",
+
   // Payment (v1 + v2)
   "payment_initiated",
   "payment_success",

apps/worker/src/lib/heuristic.ts

@@ -98,6 +98,7 @@ export function customEventPromoteReasons(eventNames: string[]): string[] {
     "subscription_cancelled",
     "trial_urgency_banner_cta_clicked",
     "downgrade_offer_shown",
+    "empty_catalog_cta_clicked", // resolved a vehicle but the catalog was empty
   ];
   for (const e of single) if (set.has(e)) reasons.push(`event:${e}`);
 

apps/worker/src/lib/prompts.ts

@@ -322,8 +322,16 @@ export function pickPromptTag(tags: string[]): string {
   )
     return "provider_quality";
 
-  // Bugs
+  // Bugs (incl. core-value parts/category render failures — bug_triage carries
-  if (set.has("bug_suspected") || set.has("server_error_impact")) return "bug_triage";
+  // is_likely_provider_issue / implicated_provider so the model can attribute an
+  // empty catalog to a provider data gap vs. a render/query defect).
+  if (
+    set.has("bug_suspected") ||
+    set.has("server_error_impact") ||
+    set.has("parts_render_blocked") ||
+    set.has("catalog_empty_result")
+  )
+    return "bug_triage";
 
   // Onboarding
   if (set.has("onboarding_stuck")) return "onboarding_stuck";

apps/worker/src/lib/tagger.smoke.ts

@@ -121,5 +121,78 @@ const tags = (s: SessionMeta, events: CanonicalEvent[], up: Record<string, unkno
   assert("validation-friction: frustrated_session NOT suppressed", t.includes("frustrated_session"));
 }
 
+// 8) THE serkan case: signed-up trial user, VIN decodes (sees model), drills the
+//    category tree + clicks a catalog model, but parts NEVER render — zero rage,
+//    zero error, zero 5xx. A demo category that *does* return parts must not mask
+//    the real-page failure, and touching the search box must not silence it.
+{
+  const t = tags(
+    mkSession({ rageClickCount: 0, errorCount: 0, network5xxCount: 0 }),
+    [
+      ev("search_input_focused"),
+      ev("vin_decode_succeeded"),
+      ev("category_view_changed"),
+      ev("category_view_changed"),
+      ev("category_view_changed"),
+      ev("catalog_model_clicked", { brand_name: "Ford" }),
+      // demo categories that DO return parts — must be excluded from the signal:
+      ev("parts_panel_viewed", { parts_count: 13, $current_url: "https://sase.tr/demo/categories/x" }),
+    ],
+  );
+  assert("serkan: parts_render_blocked fired", t.includes("parts_render_blocked"));
+  assert("serkan: was caught (not tag-less / not search-misuse suppressed)", t.length > 0);
+}
+
+// 9) Parts panel renders EMPTY on a real dashboard page (parts_count=0, never non-empty).
+{
+  const t = tags(mkSession({}), [
+    ev("vin_decode_succeeded"),
+    ev("parts_panel_viewed", {
+      parts_count: 0,
+      $current_url: "https://sase.tr/dashboard/vehicles/abc/categories/def",
+    }),
+  ]);
+  assert("empty-panel: catalog_empty_result fired", t.includes("catalog_empty_result"));
+  assert("empty-panel: not falsely 'blocked' (panel did render)", !t.includes("parts_render_blocked"));
+}
+
+// 10) Explicit empty-state CTA → concrete empty result.
+{
+  const t = tags(mkSession({}), [
+    ev("vin_decode_succeeded"),
+    ev("empty_catalog_cta_clicked", { vehicle_label: "Ford Focus", category_name: "mekanik" }),
+  ]);
+  assert("empty-cta: catalog_empty_result fired", t.includes("catalog_empty_result"));
+}
+
+// 11) Happy path: parts actually render (count>0) → no parts-failure tags.
+{
+  const url = "https://sase.tr/dashboard/vehicles/abc/categories/def";
+  const t = tags(mkSession({}), [
+    ev("vin_decode_succeeded"),
+    ev("catalog_model_clicked"),
+    ev("parts_panel_viewed", { parts_count: 20, $current_url: url }),
+    ev("oem_code_copied", { $current_url: url }),
+  ]);
+  assert("happy: no parts_render_blocked", !t.includes("parts_render_blocked"));
+  assert("happy: no catalog_empty_result", !t.includes("catalog_empty_result"));
+}
+
+// 12) Decode-and-bounce (no drilling toward parts) → no false positive.
+{
+  const t = tags(mkSession({}), [ev("vin_decode_succeeded")]);
+  assert("bounce: no parts_render_blocked", !t.includes("parts_render_blocked"));
+}
+
+// 13) Locked brand → upgrade prompt: paywall, not a defect.
+{
+  const t = tags(mkSession({}), [
+    ev("vin_decode_succeeded"),
+    ev("catalog_model_clicked", { brand_name: "Mercedes" }),
+    ev("catalog_locked_brand_upgrade_clicked", { brand_name: "Mercedes" }),
+  ]);
+  assert("locked: no parts_render_blocked (paywall, not bug)", !t.includes("parts_render_blocked"));
+}
+
 console.log(`\ntagger smoke: ${pass} passed, ${fail} failed`);
 if (fail > 0) process.exit(1);

apps/worker/src/lib/tagger.ts

@@ -47,6 +47,58 @@ export function tagSession(s: SessionMeta, ctx: EnrichmentCtx | null): TagResult
   const userProps = ctx?.userProperties ?? {};
   const groupProps = ctx?.groupProperties ?? null;
 
+  // ─── Parts / category render signals (Sase.tr core-value path) ───
+  // The product's whole job: resolve a vehicle (VIN or catalog) → list its
+  // categories + parts. When that final step yields *nothing* the product has
+  // failed for the user even though VIN decode "succeeded" and no JS error/5xx
+  // fired — the catalog returned an empty panel, 0 models, or the user hit the
+  // explicit empty-state CTA. This used to be invisible (the catalog_* family
+  // wasn't even fetched), so a real prospect could browse Ford/Opel, see no
+  // parts, and churn with no insight raised. Scoped to the real /dashboard
+  // product: /demo is a separate curated marketing surface whose (sometimes
+  // working) categories must NOT mask a genuine in-product failure.
+  const inDemo = (e: CanonicalEvent): boolean =>
+    /\/demo(\/|\?|$)/.test(
+      String(e.properties["$current_url"] ?? e.properties["$pathname"] ?? ""),
+    );
+  const realPartsViews = events.filter((e) => e.name === "parts_panel_viewed" && !inDemo(e));
+  const successfulPartsView = realPartsViews.some((e) => Number(e.properties.parts_count) > 0);
+  const emptyPartsView = realPartsViews.some((e) => Number(e.properties.parts_count) === 0);
+  const emptyModelsList = events.some(
+    (e) => e.name === "catalog_models_viewed" && !inDemo(e) && Number(e.properties.count) === 0,
+  );
+  const explicitEmptyCatalog = events.some(
+    (e) => e.name === "empty_catalog_cta_clicked" && !inDemo(e),
+  );
+  const realOemCopied = events.some((e) => e.name === "oem_code_copied" && !inDemo(e));
+
+  // Shape 1 — "the system said: nothing here": panel rendered empty (and never
+  // non-empty in this session), 0 models listed, or the empty-state CTA shown.
+  const catalogEmptyResult =
+    explicitEmptyCatalog || emptyModelsList || (emptyPartsView && !successfulPartsView);
+  // Shape 2 — "drilled in and got nothing at all": resolved a vehicle and
+  // actively browsed categories/models but never saw a single part. Gated on
+  // real engagement (not a decode-and-bounce) and excludes the paywall case
+  // (locked brand → upgrade prompt, which is a conversion signal, not a defect).
+  const resolvedVehicle =
+    has(events, "vin_decode_succeeded") ||
+    has(events, "vin_decode_candidate_selected") ||
+    has(events, "catalog_model_clicked");
+  const browsedForParts =
+    count(events, "category_view_changed") >= 2 ||
+    has(events, "catalog_model_clicked") ||
+    has(events, "catalog_subcatalog_selected");
+  const partsRenderBlocked =
+    resolvedVehicle &&
+    browsedForParts &&
+    !successfulPartsView &&
+    !realOemCopied &&
+    !has(events, "catalog_locked_brand_upgrade_clicked");
+  // Any genuine parts/category failure disqualifies the search-misuse guard
+  // below — such a session is a real product defect, never "fiddling with the
+  // search box, nothing broken".
+  const partsFailure = catalogEmptyResult || partsRenderBlocked;
+
   // ─── Expected search-box misuse → not insight-worthy ───
   // The /dashboard/search box is VIN-only, but users routinely use it to look
   // for a part by *name* (e.g. "Cam düğme") or fiddle with search/history and
@@ -61,6 +113,7 @@ export function tagSession(s: SessionMeta, ctx: EnrichmentCtx | null): TagResult
   const searchAffordanceMisuse =
     s.errorCount === 0 &&
     s.network5xxCount === 0 &&
+    !partsFailure &&
     has(events, "search_input_focused") &&
     !has(events, "vin_decode_failed") &&
     count(events, "search_input_validation_failed") < 3 &&
@@ -200,6 +253,19 @@ export function tagSession(s: SessionMeta, ctx: EnrichmentCtx | null): TagResult
     severity = bump(severity, "P3");
   }
 
+  // ─── Parts / category render failure (signals computed at top) ───
+  // Core-value failure: the user got a vehicle but no parts/categories. This is
+  // the highest-intent churn signal Sase.tr has — surface it as a concrete bug,
+  // not generic friction.
+  if (catalogEmptyResult) {
+    tags.push("catalog_empty_result");
+    severity = bump(severity, "P2");
+  }
+  if (partsRenderBlocked) {
+    tags.push("parts_render_blocked");
+    severity = bump(severity, "P1");
+  }
+
   // ─── Search friction ───
   if (count(events, "search_input_validation_failed") >= 3) {
     tags.push("search_validation_friction");

apps/worker/src/lib/telegram.ts

@@ -72,6 +72,33 @@ export function alertP0Insight(opts: {
   return sendTelegram({ text, dedupeKey: `p0:${opts.insightId}` });
 }
 
+export function alertCatalogGap(opts: {
+  brand: string;
+  failures: number;
+  uniqueUsers: number;
+  windowDays: number;
+  severity: string;
+  insightId: string;
+  panelUrl: string;
+  day: string;
+  regressed?: boolean;
+}): Promise<TelegramSendResult> {
+  const head = opts.regressed
+    ? `↩️ <b>Katalog açığı GERİ DÖNDÜ</b> [${opts.severity}]`
+    : `🗂️ <b>Katalog kapsama açığı</b> [${opts.severity}]`;
+  const text = [
+    head,
+    `<b>${escapeHtml(opts.brand)}</b>: ${opts.failures} başarısız sorgu / ${opts.uniqueUsers} kullanıcı (son ${opts.windowDays}g)`,
+    `Araç tanınıyor ama parça kataloğu yok → kullanıcı parça göremiyor.`,
+    ``,
+    `<a href="${opts.panelUrl}/insights/i/${opts.insightId}">Insight</a> · <a href="${opts.panelUrl}/projects/sase/vin-decode">VIN dashboard</a>`,
+  ].join("\n");
+  return sendTelegram({
+    text,
+    dedupeKey: `catalog_gap:${opts.regressed ? "regress" : "new"}:${opts.brand}:${opts.day}`,
+  });
+}
+
 export function alertRegression(opts: {
   insightId: string;
   title: string;

apps/worker/src/schedulers/pipeline.ts

@@ -10,6 +10,7 @@ import { runRetention } from "../jobs/retention";
 import { runEvalSet } from "../jobs/eval-run";
 import { runDailyBrief } from "../jobs/daily-brief";
 import { runVinAnomalyDetect } from "../jobs/vin-anomaly";
+import { runCatalogGapDetect } from "../jobs/catalog-gap-detect";
 import { runArchivePosthogEvents } from "../jobs/posthog-event-archive";
 import { runArchiveRecordings } from "../jobs/archive-recordings";
 import { runArchiveIdentity } from "../jobs/posthog-identity-archive";
@@ -91,6 +92,15 @@ async function runJob(job: Job) {
       }
       return res;
     }
+    case "catalog-gap-detect": {
+      const res = await runCatalogGapDetect();
+      if (res.created > 0 || res.updated > 0 || !res.ok) {
+        console.log(
+          `[pipeline] catalog-gap gaps=${res.gaps} created=${res.created} updated=${res.updated} alerts=${res.alertsFired}${res.reason ? ` reason=${res.reason}` : ""}`,
+        );
+      }
+      return res;
+    }
     case "posthog-event-archive": {
       const res = await runArchivePosthogEvents();
       if (res.fetched > 0 || res.dumped > 0 || res.error) {
@@ -181,6 +191,11 @@ export async function startInsightPipeline() {
     { pattern: "*/5 * * * *" },
     { name: "vin-anomaly-detect", data: {}, opts: { removeOnComplete: 30, removeOnFail: 15 } },
   );
+  await queue.upsertJobScheduler(
+    "catalog-gap-detect",
+    { pattern: "30 */6 * * *" },
+    { name: "catalog-gap-detect", data: {}, opts: { removeOnComplete: 30, removeOnFail: 15 } },
+  );
   await queue.upsertJobScheduler(
     "posthog-event-archive",
     { pattern: "*/15 * * * *" },
@@ -209,7 +224,7 @@ export async function startInsightPipeline() {
     stalledInterval: 60_000,
   });
   console.log(
-    "[pipeline] armed: posthog-ingest@*/5min, tag-sessions@*/2min, compress-sessions@*/3min, analyze@*/4min, validation@05:00, github-sync@*/10min, retention@04:15, daily-brief@05:00, vin-anomaly-detect@*/5min, posthog-event-archive@*/15min, archive-recordings@*/6h, posthog-identity-archive@03:00, sentry-archive@hourly",
+    "[pipeline] armed: posthog-ingest@*/5min, tag-sessions@*/2min, compress-sessions@*/3min, analyze@*/4min, validation@05:00, github-sync@*/10min, retention@04:15, daily-brief@05:00, vin-anomaly-detect@*/5min, catalog-gap-detect@*/6h, posthog-event-archive@*/15min, archive-recordings@*/6h, posthog-identity-archive@03:00, sentry-archive@hourly",
   );
   return worker;
 }