Merge pull request #189 from ArtemFilin1990/feature/everest-cloudflare-readonly-codebook-20261021

EVEREST: isolated Cloudflare Worker OEM codebook API (read-only, no approvals)
2026-10-21 06:18:41 -07:00
commit beeae38910
@@ -0,0 +1,17 @@
+# EVEREST Cloudflare Worker — codebook only (staging)
+
+This separate, not-deployed Worker snapshots 55 manufacturer-scoped code definitions from verified_manufacturer_codes.csv, keeping the source URL and OEM scope. It **does not infer ГОСТ↔ISO product interchangeability**.
+
+- GET /health
+- GET /v1/lookup?brand=SKF&code=2RSH
+- POST /v1/decode {"brand":"SKF","suffix":"2RSH/C3"}
+- POST /v1/compare {"left":{"brand":"NSK","suffix":"DDU"},"right":{"brand":"NTN","suffix":"LLU"}}
+
+Every route returns auto_replace_allowed=false. No customer catalogue, pricing, CRM, 1C, databases, credentials or approval endpoints. Unknown codes and unfamiliar brands trigger review; INA does not inherit FAG suffixes.
+
+Read-only **proof of concept**, not a substitute for PR #187 engineering gate. Cloudflare API connector was unavailable; no changes were made in Cloudflare. The worker has workers_dev:false and no routes; deployment is intentionally prevented without a new explicit route.
+
+Run: node --test test/*.test.mjs
+
+Primary source: data/reference/verified_manufacturer_codes.csv from PR #186. Target branch stacks on PR #188.
+Cloudflare docs: https://developers.cloudflare.com/workers/wrangler/configuration/
@@ -0,0 +1,772 @@
+[
+  {
+    "manufacturer": "SKF",
+    "code": "2Z",
+    "component": "suffix",
+    "feature": "shield",
+    "contact_type": "shield",
+    "sides": "two",
+    "meaning_ru": "Две металлические защитные шайбы",
+    "bearing_scope": "радиальные шариковые подшипники SKF",
+    "source_url": "https://evolution.skf.com/en/added-versatility-as-use-of-rsh-heavy-duty-seals-is-extended/",
+    "source_locator": "SKF Evolution — sealing solutions",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "Z",
+    "component": "suffix",
+    "feature": "shield",
+    "contact_type": "shield",
+    "sides": "one",
+    "meaning_ru": "Одна металлическая защитная шайба",
+    "bearing_scope": "радиальные шариковые подшипники SKF",
+    "source_url": "https://cdn.skfmediahub.skf.com/api/public/0901d196802809de/pdf_preview_medium/0901d196802809de_pdf_preview_medium.pdf",
+    "source_locator": "SKF Deep Groove Ball Bearings — Designation system, p. 258",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "2RZ",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "noncontact",
+    "sides": "two",
+    "meaning_ru": "Два бесконтактных уплотнения",
+    "bearing_scope": "радиальные шариковые подшипники SKF",
+    "source_url": "https://evolution.skf.com/en/added-versatility-as-use-of-rsh-heavy-duty-seals-is-extended/",
+    "source_locator": "SKF Evolution — sealing solutions",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "RZ",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "noncontact",
+    "sides": "one",
+    "meaning_ru": "Одно бесконтактное уплотнение",
+    "bearing_scope": "радиальные шариковые подшипники SKF",
+    "source_url": "https://cdn.skfmediahub.skf.com/api/public/0901d196802809de/pdf_preview_medium/0901d196802809de_pdf_preview_medium.pdf",
+    "source_locator": "SKF Deep Groove Ball Bearings — Designation system, p. 258",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "2RS1",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "two",
+    "meaning_ru": "Два контактных уплотнения",
+    "bearing_scope": "радиальные шариковые подшипники SKF",
+    "source_url": "https://evolution.skf.com/en/added-versatility-as-use-of-rsh-heavy-duty-seals-is-extended/",
+    "source_locator": "SKF Evolution — sealing solutions",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "RS1",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "one",
+    "meaning_ru": "Одно контактное уплотнение",
+    "bearing_scope": "радиальные шариковые подшипники SKF",
+    "source_url": "https://cdn.skfmediahub.skf.com/api/public/0901d196802809de/pdf_preview_medium/0901d196802809de_pdf_preview_medium.pdf",
+    "source_locator": "SKF Deep Groove Ball Bearings — Designation system, p. 258",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "2RSH",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "two",
+    "meaning_ru": "Два контактных уплотнения RSH",
+    "bearing_scope": "радиальные шариковые подшипники SKF",
+    "source_url": "https://evolution.skf.com/en/added-versatility-as-use-of-rsh-heavy-duty-seals-is-extended/",
+    "source_locator": "SKF Evolution — sealing solutions",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "RSH",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "one",
+    "meaning_ru": "Одно контактное уплотнение RSH",
+    "bearing_scope": "радиальные шариковые подшипники SKF",
+    "source_url": "https://cdn.skfmediahub.skf.com/api/public/0901d196802809de/pdf_preview_medium/0901d196802809de_pdf_preview_medium.pdf",
+    "source_locator": "SKF Deep Groove Ball Bearings — Designation system, p. 258",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "C2",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор меньше нормального",
+    "bearing_scope": "подшипники SKF; сверить применимость для типа",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — internal clearance",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "C3",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор больше нормального",
+    "bearing_scope": "подшипники SKF; сверить применимость для типа",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — internal clearance",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "C4",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор больше C3",
+    "bearing_scope": "подшипники SKF; сверить применимость для типа",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — internal clearance",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "P6",
+    "component": "suffix",
+    "feature": "precision",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Класс точности P6",
+    "bearing_scope": "подшипники SKF",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — common suffixes",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "W33",
+    "component": "suffix",
+    "feature": "lubrication",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Канавка и три отверстия для смазки наружного кольца",
+    "bearing_scope": "сферические роликовые SKF",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — common suffixes",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "K",
+    "component": "suffix",
+    "feature": "bore",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Коническое отверстие 1:12",
+    "bearing_scope": "сферические роликовые SKF",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — common suffixes",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "M",
+    "component": "suffix",
+    "feature": "cage",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Массивный латунный сепаратор",
+    "bearing_scope": "подшипники SKF, тип уточнить",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — common suffixes",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "NU",
+    "component": "basic_family",
+    "feature": "cylindrical_roller_type",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "NU — конструктивное исполнение цилиндрического роликового подшипника, часть базового обозначения",
+    "bearing_scope": "цилиндрические роликовые SKF",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — bearing type",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "NJ",
+    "component": "basic_family",
+    "feature": "cylindrical_roller_type",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "NJ — конструктивное исполнение цилиндрического роликового подшипника, часть базового обозначения",
+    "bearing_scope": "цилиндрические роликовые SKF",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — bearing type",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "SKF",
+    "code": "NUP",
+    "component": "basic_family",
+    "feature": "cylindrical_roller_type",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "NUP — конструктивное исполнение цилиндрического роликового подшипника, часть базового обозначения",
+    "bearing_scope": "цилиндрические роликовые SKF",
+    "source_url": "https://benelux.promo.skf.com/acton/attachment/21304/f-55e38212-9419-4532-a361-8c1a9aab6720/0/-/-/-/file.pdf?sid=TV2%3AFx2eJqRHy",
+    "source_locator": "SKF Designations — bearing type",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "Z",
+    "component": "suffix",
+    "feature": "shield",
+    "contact_type": "shield",
+    "sides": "one",
+    "meaning_ru": "Одна защитная металлическая шайба",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 7, 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "ZZ",
+    "component": "suffix",
+    "feature": "shield",
+    "contact_type": "shield",
+    "sides": "two",
+    "meaning_ru": "Две защитные металлические шайбы",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 7, 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "V",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "noncontact",
+    "sides": "one",
+    "meaning_ru": "Одно бесконтактное резиновое уплотнение",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 7, 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "VV",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "noncontact",
+    "sides": "two",
+    "meaning_ru": "Два бесконтактных резиновых уплотнения",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 7, 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "DW",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "light_contact",
+    "sides": "one",
+    "meaning_ru": "Одно слабоконтактное резиновое уплотнение",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 7, 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "DDW",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "light_contact",
+    "sides": "two",
+    "meaning_ru": "Два слабоконтактных резиновых уплотнения",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 7, 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "DU",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "one",
+    "meaning_ru": "Одно контактное резиновое уплотнение",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 7, 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "DDU",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "two",
+    "meaning_ru": "Два контактных резиновых уплотнения",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 7, 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "C2",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор меньше нормального",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "CN",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Нормальный радиальный зазор",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "CM",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор для электродвигателей",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "C3",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор больше нормального",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "N",
+    "component": "suffix",
+    "feature": "retaining",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Канавка под стопорное кольцо на наружном кольце",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NSK",
+    "code": "NR",
+    "component": "suffix",
+    "feature": "retaining",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Канавка и стопорное кольцо на наружном кольце",
+    "bearing_scope": "однорядные радиальные шариковые NSK",
+    "source_url": "https://www.nsk.com/content/dam/nsk-marketing/projects-completed/literature/product-brochures/deep-grooves-bbs_product-brochure/en_deep-grooves-bbs_product-brochure/preview-pdf_deep-grooves-bbs_product-brochure_en/EN_Deep%20Grooves%20BBs_Product_Brochure_low-res.pdf",
+    "source_locator": "NSK Deep Groove Ball Bearings, p. 9",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "LB",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "noncontact",
+    "sides": "one",
+    "meaning_ru": "Одно бесконтактное резиновое уплотнение",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5 / seals & shields",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "LLB",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "noncontact",
+    "sides": "two",
+    "meaning_ru": "Два бесконтактных резиновых уплотнения",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5 / seals & shields",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "LU",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "one",
+    "meaning_ru": "Одно контактное резиновое уплотнение",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5 / seals & shields",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "LLU",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "two",
+    "meaning_ru": "Два контактных резиновых уплотнения",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5 / seals & shields",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "LH",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "light_contact",
+    "sides": "one",
+    "meaning_ru": "Одно слабоконтактное резиновое уплотнение",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5 / seals & shields",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "LLH",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "light_contact",
+    "sides": "two",
+    "meaning_ru": "Два слабоконтактных резиновых уплотнения",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5 / seals & shields",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "Z",
+    "component": "suffix",
+    "feature": "shield",
+    "contact_type": "shield",
+    "sides": "one",
+    "meaning_ru": "Одна металлическая защитная шайба",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5 / seals & shields",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "ZZ",
+    "component": "suffix",
+    "feature": "shield",
+    "contact_type": "shield",
+    "sides": "two",
+    "meaning_ru": "Две металлические защитные шайбы",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5 / seals & shields",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "C2",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор меньше нормального",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "C3",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор больше нормального",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "C4",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор больше C3",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "P5",
+    "component": "suffix",
+    "feature": "precision",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Класс точности ISO 5",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "P6",
+    "component": "suffix",
+    "feature": "precision",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Класс точности ISO 6",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "NR",
+    "component": "suffix",
+    "feature": "retaining",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Канавка и стопорное кольцо на наружном кольце",
+    "bearing_scope": "радиальные шариковые NTN",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "TS2",
+    "component": "prefix",
+    "feature": "heat_treatment",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Термически стабилизированное исполнение до 160°C",
+    "bearing_scope": "радиальные шариковые NTN; зависит от смазки/уплотнений",
+    "source_url": "https://ntnamericas.com/wp-content/uploads/2025/12/UPDATED-NTN-Catalog-Gen-NomenclatureQRG-A-22NTNQREF.pdf",
+    "source_locator": "NTN Quick Reference, p. 5 / Prefix",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "NTN",
+    "code": "4T-",
+    "component": "prefix",
+    "feature": "material",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Специальная цементируемая сталь для конических роликовых подшипников",
+    "bearing_scope": "конические роликовые NTN",
+    "source_url": "https://ntnamericas.com/technical-resources/faqs/",
+    "source_locator": "NTN FAQ — What is 4T- prefix",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "FAG",
+    "code": "RSR",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "one",
+    "meaning_ru": "Одно контактное уплотнение RSR",
+    "bearing_scope": "радиальные шариковые FAG; архивная публикация, проверить актуальное исполнение",
+    "source_url": "https://www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/publication/downloads_18/wl_43163_de_en.pdf",
+    "source_locator": "FAG Deep Groove Ball Bearings WL 43 163, pp. 2-3 (1997)",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "FAG",
+    "code": "2RSR",
+    "component": "suffix",
+    "feature": "seal",
+    "contact_type": "contact",
+    "sides": "two",
+    "meaning_ru": "Два контактных уплотнения RSR",
+    "bearing_scope": "радиальные шариковые FAG; архивная публикация, проверить актуальное исполнение",
+    "source_url": "https://www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/publication/downloads_18/wl_43163_de_en.pdf",
+    "source_locator": "FAG Deep Groove Ball Bearings WL 43 163, pp. 2-3 (1997)",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "FAG",
+    "code": "ZR",
+    "component": "suffix",
+    "feature": "shield",
+    "contact_type": "shield",
+    "sides": "one",
+    "meaning_ru": "Одна защитная шайба ZR",
+    "bearing_scope": "радиальные шариковые FAG; архивная публикация, проверить актуальное исполнение",
+    "source_url": "https://www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/publication/downloads_18/wl_43163_de_en.pdf",
+    "source_locator": "FAG Deep Groove Ball Bearings WL 43 163, pp. 2-3 (1997)",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "FAG",
+    "code": "2ZR",
+    "component": "suffix",
+    "feature": "shield",
+    "contact_type": "shield",
+    "sides": "two",
+    "meaning_ru": "Две защитные шайбы ZR",
+    "bearing_scope": "радиальные шариковые FAG; архивная публикация, проверить актуальное исполнение",
+    "source_url": "https://www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/publication/downloads_18/wl_43163_de_en.pdf",
+    "source_locator": "FAG Deep Groove Ball Bearings WL 43 163, pp. 2-3 (1997)",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "FAG",
+    "code": "C3",
+    "component": "suffix",
+    "feature": "clearance",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Радиальный зазор больше нормального",
+    "bearing_scope": "радиальные шариковые FAG; архивная публикация, проверить актуальное исполнение",
+    "source_url": "https://www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/publication/downloads_18/wl_43163_de_en.pdf",
+    "source_locator": "FAG Deep Groove Ball Bearings WL 43 163, pp. 2-3 (1997)",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "FAG",
+    "code": "M",
+    "component": "suffix",
+    "feature": "cage",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Механически обработанный латунный сепаратор",
+    "bearing_scope": "радиальные шариковые FAG; архивная публикация, проверить актуальное исполнение",
+    "source_url": "https://www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/publication/downloads_18/wl_43163_de_en.pdf",
+    "source_locator": "FAG Deep Groove Ball Bearings WL 43 163, pp. 2-3 (1997)",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  },
+  {
+    "manufacturer": "FAG",
+    "code": "W203B",
+    "component": "suffix",
+    "feature": "material",
+    "contact_type": "unspecified",
+    "sides": "unspecified",
+    "meaning_ru": "Исполнение из нержавеющей стали",
+    "bearing_scope": "радиальные шариковые FAG; архивная публикация, проверить актуальное исполнение",
+    "source_url": "https://www.schaeffler.com/remotemedien/media/_shared_media/08_media_library/01_publications/schaeffler_2/publication/downloads_18/wl_43163_de_en.pdf",
+    "source_locator": "FAG Deep Groove Ball Bearings WL 43 163, pp. 2-3 (1997)",
+    "verified_on": "2026-10-20",
+    "verification_status": "OFFICIAL_CODE_ONLY"
+  }
+]
@@ -0,0 +1,11 @@
+{
+  "name": "everest-bearing-codebook-cloudflare",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "test": "node --test test/*.test.mjs"
+  },
+  "engines": {
+    "node": ">=20"
+  }
+}
@@ -0,0 +1,4 @@
+// Snapshot is generated from verified_manufacturer_codes.csv; code meaning != analogue approval.
+import VERIFIED_CODES from '../data/verified_codes.json' with { type: 'json' };
+export { VERIFIED_CODES };
+export const KNOWN_BRANDS = ['SKF','NSK','NTN','FAG','INA'];
@@ -0,0 +1,175 @@
+import { VERIFIED_CODES, KNOWN_BRANDS } from './codebook.mjs';
+
+const index = new Map(VERIFIED_CODES.map(c => [c.manufacturer+'|'+c.component+'|'+c.code,c]));
+const headers = {'content-type':'application/json; charset=utf-8','cache-control':'no-store','x-content-type-options':'nosniff','referrer-policy':'no-referrer'};
+function json(value,status=200){return new Response(JSON.stringify(value),{status,headers})}
+function invalid(message,status=400){return json({error:message,auto_replace_allowed:false},status)}
+function brandOf(b){return typeof b==='string'?b.trim().toUpperCase():''}
+function safe(s,limit=96){return typeof s==='string'&&s.length<=limit&&/^[\w.\-/\s]+$/u.test(s)}
+export function lookup(brand,code,component='suffix'){
+  return index.get(brandOf(brand)+'|'+component+'|'+String(code||'').trim().toUpperCase())??null;
+}
+export function decode(brand,suffix){
+  const b=brandOf(brand), s=String(suffix||'').trim().toUpperCase();
+  if(!KNOWN_BRANDS.includes(b))return {brand:b||null,original_suffix:s,matched:[],unknown_parts:s?[s]:[],status:'UNKNOWN_BRAND',auto_replace_allowed:false};
+  const candidates=VERIFIED_CODES.filter(c=>c.manufacturer===b&&c.component==='suffix').sort((a,b)=>b.code.length-a.code.length);
+  let i=0;const matched=[],unknown_parts=[];
+  while(i<s.length){
+    if(' -/.'.includes(s[i])){i++;continue}
+    const found=candidates.find(c=>s.startsWith(c.code,i));
+    if(found){matched.push(found);i+=found.code.length;continue}
+    let j=i+1;while(j<s.length&&!' -/.'.includes(s[j]))j++;
+    unknown_parts.push(s.slice(i,j));i=j;
+  }
+  return {brand:b,original_suffix:s,matched,unknown_parts,status:!s?'EMPTY':unknown_parts.length?'REVIEW_UNKNOWN_CODE':'VERIFIED_CODE_SCOPE_REVIEW',auto_replace_allowed:false};
+}
+export function compare(left,right){
+  const l=decode(left?.brand,left?.suffix),r=decode(right?.brand,right?.suffix);
+  const full=x=>x.status==='VERIFIED_CODE_SCOPE_REVIEW'&&x.matched.length>0;
+  const shapes=x=>x.matched.map(c=>c.feature+':'+c.contact_type+':'+c.sides).sort();
+  const code_relationship=!full(l)||!full(r)?'INSUFFICIENT_CODE_EVIDENCE':
+    JSON.stringify(shapes(l))===JSON.stringify(shapes(r))?'SAME_FEATURE_NOT_PROVEN_INTERCHANGEABLE':'DIFFERENT_TECHNICAL_FEATURE';
+  return {left:l,right:r,code_relationship,product_equivalence:'NOT_ASSESSED',decision:'ENGINEER_REVIEW_REQUIRED',auto_replace_allowed:false,
+    reasons:['OEM_CODE_MEANING_NOT_PRODUCT_SPECIFICATION','NO_SCOPED_ENGINEERING_APPROVAL']};
+}
+async function readSmallJSON(req){
+  const length=Number(req.headers.get('content-length'));
+  if(length>2048)throw Error('PAYLOAD_TOO_LARGE');
+  if(!(req.headers.get('content-type')||'').toLowerCase().startsWith('application/json'))throw Error('JSON_ONLY');
+  const reader=req.body?.getReader();
+  if(!reader)throw Error('INVALID_JSON');
+  const chunks=[];let bytesRead=0;
+  while(true){
+    const {done,value}=await reader.read();if(done)break;
+    bytesRead+=value.byteLength;
+    if(bytesRead>2048){await reader.cancel();throw Error('PAYLOAD_TOO_LARGE')}
+    chunks.push(value);
+  }
+  const buffer=new Uint8Array(bytesRead);let pos=0;
+  for(const chunk of chunks){buffer.set(chunk,pos);pos+=chunk.byteLength}
+  const body=new TextDecoder().decode(buffer);
+  let obj;try{obj=JSON.parse(body)}catch{throw Error('INVALID_JSON')}
+  if(!obj||typeof obj!=='object'||Array.isArray(obj))throw Error('OBJECT_REQUIRED');
+  return obj;
+}
+
+// Structural parsing only. ГОСТ↔ISO equivalence is never inferred from designation digits.
+export function parseMarking(raw, declaredBrand='') {
+  const raw_designation = typeof raw==='string' ? raw : '';
+  const issues=[];
+  const empty=() => ({raw_designation,brand:null,prefix:'',basic_designation:'',suffix:'',
+    standard_hint:'UNKNOWN',parse_status:'INVALID',issues,source_codes:[],
+    product_equivalence:'NOT_ASSESSED',auto_replace_allowed:false});
+  if (!raw_designation.trim()||raw_designation.length>160 || !/^[A-ZА-ЯЁ0-9.\/\-\s]+$/u.test(raw_designation.toUpperCase())) {
+    issues.push('INVALID_MARKING_INPUT');return empty();
+  }
+  let value=raw_designation.trim().toUpperCase().replace(/\s+/g,' ');
+  value=value.replace(/^(?:ПОДШИПНИК|BEARING)\s+/, '');
+  const detected=[];
+  const atStart=KNOWN_BRANDS.find(b=>value.startsWith(b+' '));
+  if(atStart){detected.push(atStart);value=value.slice(atStart.length+1).trim()}
+  const atEnd=KNOWN_BRANDS.find(b=>value.endsWith(' '+b));
+  if(atEnd){detected.push(atEnd);value=value.slice(0,-atEnd.length-1).trim()}
+  const asserted=typeof declaredBrand==='string'?declaredBrand.trim().toUpperCase():'';
+  if(asserted&&!KNOWN_BRANDS.includes(asserted)) issues.push('UNKNOWN_DECLARED_BRAND');
+  const distinct=new Set([...detected, ...(asserted?[asserted]:[])]);
+  if(distinct.size>1)issues.push('CONFLICTING_BRANDS');
+  const brand=asserted||detected[0]||null;
+  if(!brand)issues.push('BRAND_UNKNOWN');
+  let prefix='', prefix_origin='NONE', standard_hint='UNVERIFIED';
+  if(brand){
+    const documented=VERIFIED_CODES.filter(c=>c.manufacturer===brand&&c.component==='prefix')
+      .sort((a,b)=>b.code.length-a.code.length);
+    const hit=documented.find(c=>value.startsWith(c.code));
+    if(hit){prefix=hit.code;prefix_origin='OFFICIAL_CODE_ONLY';value=value.slice(hit.code.length);
+      if(value.startsWith('-')){prefix+='-';value=value.slice(1)}value=value.trim();}
+  }
+  if(!prefix){const gost=/^(\d{1,2}-)(?=\d{3,7}(?:\D|$))/.exec(value);
+    if(gost){prefix=gost[1];prefix_origin='STRUCTURAL_ONLY';value=value.slice(prefix.length);standard_hint='GOST_CANDIDATE';}}
+  const genericFamilies=['NUP','RNA','NU','NJ','QJ','NA','HK','BK','UC','UK','N'];
+  const family=genericFamilies.find(f=>new RegExp('^'+f+'\\d{2,7}').test(value));
+  const bodyMatch=family?new RegExp('^('+family+'\\d{2,7})(.*)
+  async fetch(req){
+    try{
+      const url=new URL(req.url),path=url.pathname;
+      if(req.method==='GET'&&path==='/health')
+        return json({service:'EVEREST BearingsInfo',status:'ok',mode:'read-only',code_count:VERIFIED_CODES.length,approved_product_analogues:0});
+      if (path==='/v1/parse' && req.method==='POST') {
+        const obj=await readSmallJSON(req);
+        if (typeof obj.raw_designation!=='string'||obj.raw_designation.length>160||
+            (obj.brand!==undefined&&typeof obj.brand!=='string'))return invalid('BAD_MARKING');
+        return json(parseMarking(obj.raw_designation,obj.brand||''));
+      }
+      if(req.method==='GET'&&path==='/v1/lookup'){
+        const brand=brandOf(url.searchParams.get('brand')),code=url.searchParams.get('code'),component=url.searchParams.get('component')||'suffix';
+        if(!KNOWN_BRANDS.includes(brand)||!safe(code)||!['suffix','prefix','basic_family'].includes(component))return invalid('BAD_LOOKUP');
+        const entry=lookup(brand,code,component);
+        return json({entry,found:!!entry,status:entry?'OFFICIAL_CODE_ONLY':'NOT_FOUND',auto_replace_allowed:false});
+      }
+      if(req.method==='POST'&&path==='/v1/decode'){
+        const o=await readSmallJSON(req);
+        if(typeof o.brand!=='string'||o.brand.length>40||!safe(o.suffix,256))return invalid('BAD_DESIGNATION');
+        return json(decode(o.brand,o.suffix));
+      }
+      if(req.method==='POST'&&path==='/v1/compare'){
+        const o=await readSmallJSON(req);
+        if(!o.left||!o.right||typeof o.left.brand!=='string'||typeof o.right.brand!=='string'
+          ||!safe(o.left.suffix,256)||!safe(o.right.suffix,256))return invalid('BAD_PAIR');
+        return json(compare(o.left,o.right));
+      }
+      if(path==='/v1/approve')return invalid('APPROVAL_ENDPOINT_NOT_AVAILABLE',403);
+      return invalid('NOT_FOUND',404);
+    }catch(e){
+      if(['PAYLOAD_TOO_LARGE','JSON_ONLY','INVALID_JSON','OBJECT_REQUIRED'].includes(e?.message))
+        return invalid(e.message,e.message==='PAYLOAD_TOO_LARGE'?413:400);
+      return invalid('INTERNAL_ERROR',500);
+    }
+  }
+};
+).exec(value):/^(\d{3,7})(.*)$/.exec(value);
+  if(!bodyMatch){issues.push('BASIC_DESIGNATION_UNRECOGNIZED');return {...empty(),brand,prefix,standard_hint};}
+  const basic_designation=bodyMatch[1];
+  const suffix=bodyMatch[2].trim();
+  if(family && !VERIFIED_CODES.some(c=>c.manufacturer===brand && c.component==='basic_family' && c.code===family))
+    issues.push('BASIC_FAMILY_NOT_OEM_VERIFIED');
+  const decoded=decode(brand,suffix);
+  if(suffix && decoded.status!=='VERIFIED_CODE_SCOPE_REVIEW')issues.push('UNVERIFIED_SUFFIX');
+  if(/[А-ЯЁ]/u.test(basic_designation+suffix)&&/[A-Z]/u.test(basic_designation+suffix))issues.push('MIXED_ALPHABETS');
+  return {raw_designation,brand,prefix,prefix_origin,basic_designation,suffix,standard_hint,
+    source_codes:decoded.matched,unresolved_suffix_parts:decoded.unknown_parts,
+    parse_status:issues.length?'REVIEW':'PARSED_COMPONENTS',issues,
+    product_equivalence:'NOT_ASSESSED',auto_replace_allowed:false};
+}
+
+export default {
+  async fetch(req){
+    try{
+      const url=new URL(req.url),path=url.pathname;
+      if(req.method==='GET'&&path==='/health')
+        return json({service:'EVEREST BearingsInfo',status:'ok',mode:'read-only',code_count:VERIFIED_CODES.length,approved_product_analogues:0});
+      if(req.method==='GET'&&path==='/v1/lookup'){
+        const brand=brandOf(url.searchParams.get('brand')),code=url.searchParams.get('code'),component=url.searchParams.get('component')||'suffix';
+        if(!KNOWN_BRANDS.includes(brand)||!safe(code)||!['suffix','prefix','basic_family'].includes(component))return invalid('BAD_LOOKUP');
+        const entry=lookup(brand,code,component);
+        return json({entry,found:!!entry,status:entry?'OFFICIAL_CODE_ONLY':'NOT_FOUND',auto_replace_allowed:false});
+      }
+      if(req.method==='POST'&&path==='/v1/decode'){
+        const o=await readSmallJSON(req);
+        if(typeof o.brand!=='string'||o.brand.length>40||!safe(o.suffix,256))return invalid('BAD_DESIGNATION');
+        return json(decode(o.brand,o.suffix));
+      }
+      if(req.method==='POST'&&path==='/v1/compare'){
+        const o=await readSmallJSON(req);
+        if(!o.left||!o.right||typeof o.left.brand!=='string'||typeof o.right.brand!=='string'
+          ||!safe(o.left.suffix,256)||!safe(o.right.suffix,256))return invalid('BAD_PAIR');
+        return json(compare(o.left,o.right));
+      }
+      if(path==='/v1/approve')return invalid('APPROVAL_ENDPOINT_NOT_AVAILABLE',403);
+      return invalid('NOT_FOUND',404);
+    }catch(e){
+      if(['PAYLOAD_TOO_LARGE','JSON_ONLY','INVALID_JSON','OBJECT_REQUIRED'].includes(e?.message))
+        return invalid(e.message,e.message==='PAYLOAD_TOO_LARGE'?413:400);
+      return invalid('INTERNAL_ERROR',500);
+    }
+  }
+};
@@ -0,0 +1,15 @@
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import api,{decode,lookup,compare} from '../src/index.mjs';
+const req=(p,method='GET',data)=>new Request('https://example.invalid'+p,{method,headers:{'content-type':'application/json'},body:data?JSON.stringify(data):undefined});
+const call=async (r)=>{const x=await api.fetch(r);return [x.status,await x.json()]};
+test('fifty five official codes in source snapshot',async()=>{const [s,r]=await call(req('/health'));assert.equal(s,200);assert.equal(r.code_count,55);assert.equal(r.approved_product_analogues,0)});
+test('manufacturer-specific semantics retained',()=>{assert.equal(lookup('NSK','DDU').contact_type,'contact');assert.equal(lookup('NTN','LLB').contact_type,'noncontact')});
+test('compound suffix decodes',()=>{const r=decode('SKF','-2RSH/C3');assert.deepEqual(r.matched.map(x=>x.code),['2RSH','C3']);assert.equal(r.auto_replace_allowed,false)});
+test('unknown part not silently discarded',()=>{const r=decode('NSK','DDUXYZCM');assert.deepEqual(r.unknown_parts,['XYZCM']);assert.equal(r.status,'REVIEW_UNKNOWN_CODE')});
+test('FAG code not inherited by INA',()=>{assert.equal(lookup('INA','2RSR'),null);assert.equal(decode('INA','2RSR').status,'REVIEW_UNKNOWN_CODE')});
+test('functional similarity never equals product equivalence',()=>{const r=compare({brand:'NSK',suffix:'DDU'},{brand:'NTN',suffix:'LLU'});assert.equal(r.code_relationship,'SAME_FEATURE_NOT_PROVEN_INTERCHANGEABLE');assert.equal(r.auto_replace_allowed,false)});
+test('contact versus noncontact difference is reported',()=>{const r=compare({brand:'NSK',suffix:'VV'},{brand:'NTN',suffix:'LLU'});assert.equal(r.code_relationship,'DIFFERENT_TECHNICAL_FEATURE')});
+test('approval routes rejected',async()=>{const [s,r]=await call(req('/v1/approve','POST',{}));assert.equal(s,403);assert.equal(r.auto_replace_allowed,false)});
+test('overlong suffix rejected',async()=>{const [s]=await call(req('/v1/decode','POST',{brand:'SKF',suffix:'X'.repeat(300)}));assert.equal(s,400)});
+test('lookup route works',async()=>{const [s,r]=await call(req('/v1/lookup?brand=SKF&code=2RSH'));assert.equal(s,200);assert.equal(r.entry.code,'2RSH');assert.equal(r.auto_replace_allowed,false)});
@@ -0,0 +1,13 @@
+{
+  "name": "everest-bearings-codebook-staging",
+  "main": "src/index.mjs",
+  "compatibility_date": "2026-10-21",
+  "compatibility_flags": [
+    "nodejs_compat"
+  ],
+  "workers_dev": false,
+  "observability": {
+    "enabled": true,
+    "head_sampling_rate": 0.1
+  }
+}