release: consolidate web simulation and real CV prototype

Add cleaned RealSense/OpenCV CV under cv/ with secret-free example
config, MQTT disabled by default, and canonical README coverage for
web + CV relationship without claiming production integration.

Co-authored-by: Cursor <cursoragent@cursor.com>

docs/ENGINEERING.md

@@ -61,6 +61,23 @@ CCD for light/thin items exists in runtime/sim; that alone is **not** full conta
 - Missing: `input_info/extracted/Постановка_Задача_3_сжато_2.pdf` — never claim it is available.
 - Internal engineering criteria are not automatic Ozon pass/fail.
 
+## Соответствие подтверждённым требованиям
+
+Grounded only in present sources + current `main` code/tests (not a full official scorecard):
+
+| Area | Official source present | Current implementation | Evidence | Status |
+|---|---|---|---|---|
+| B/C/D bounds & roundness | `official_sources/doc-1783095831.pdf` | web `classifier.ts`, CV `cv/classify.py` | unit tests | PARTIAL (PDF not re-parsed each pass) |
+| Digital twin demo | workspace PDFs in `input_info/` | `/` + `/documentation` | e2e smoke/routes, production | PASS (demo present) |
+| CAD conveyor | author pack / STL references | `3d_models/`, `conveyor-clean.glb` | checksums in README | PASS (assets present) |
+| Real measurement CV | Track 3 camera intent in briefs | `cv/` RealSense+OpenCV | `cv/README.md`, `test_classify.py` | PARTIAL (prototype, not live web) |
+| Physical industrial line | scoring/workspace PDFs | web physics + optional MQTT CV | code; contact not fully validated | PARTIAL |
+| Presentation / video | platform rules | cloud links | README §17 | NOT_VERIFIED (links missing) |
+
+## Real CV prototype
+
+Path `cv/` — OpenCV + RealSense D415 depth pipeline. Same B/C/D domain as the web twin. **Not** consumed by https://arhipovdan.ru. Details: `cv/README.md`.
+
 ## Layout drawing
 
 `docs/engineering/work-area-layout-source.png` — workspace layout provenance image retained for engineering reference.