Inline optical QC: devices for the record inspection station

User, 17 Oct 2026: research on the inline QC equipment, which devices
can be used for the optical check.

- New docs/equipment/inline-optical-qc.md: defect-by-defect table with
  the optical signature, device and limit (IEC 98 / DIN 45547 hole and
  eccentricity, Stamper Discs targets, Mobineko warp limits), precedents
  (no vinyl product; Dr. Schenk ISM CD scanner as template; Basler/Xiris;
  PRP AQA 2023; CTU thesis), a station design (centring turntable, 4k
  line-scan per side with dark-field, bright-field and transmitted light,
  colour label camera, two laser warp sensors or a line profiler,
  optional thermal camera) with sourced price signals, resolution and
  eccentricity math, throughput, placement at the Duplex cell and the
  Classic, smart-camera vs open GenICam/Aravis/OpenCV/anomalib on NixOS,
  specials, Thai channels, next steps.
- Estimate USD 12k-30k hardware per station, ~USD 40k-100k for the two
  launch stations; inside the existing metrology launch tier, no plan
  price change.
- Backlinks: quality-automation.md layer 1, digital-factory.md QC
  integration row, README bullet and tree.

README.md

@@ -180,6 +180,11 @@ The detail lives in dedicated documents:
   repo, VLAN zoning, Telegraf/MQTT acquisition source by source, QC
   instrument integration, the factory application, alerting, backup,
   security, the data clauses for every RFQ, build order and rough cost
+- [Inline optical QC](docs/equipment/inline-optical-qc.md): devices for
+  the 100% record inspection station (line-scan cameras with dark-field
+  and transmitted light, label camera, laser warp sensors, centring
+  turntable), CD-scanner and PRP precedents, smart-camera versus open
+  NixOS software, specials, prices and a two-station cost estimate
 - [Quality automation](docs/quality-automation.md): stamper metrology
   (Keyence-class confocal, profiler, XRF), layered pressed-record QC (100%
   optical inspection, per-cycle press telemetry, sampled automated audio
@@ -339,6 +344,7 @@ docs/
 │   │                      optical-disc literature (vendor PDFs)
 │   ├── duplex-cell-layout-sketch.png  Duplex cell arrangement (sketch, not to scale)
 │   ├── galvanics.md       Electroforming and stamper prep equipment plan
+│   ├── inline-optical-qc.md  Devices for the record inspection station
 │   └── pressing-line.md   Press fleet strategy and equipment plan
 ├── finance/               Project cost overviews, revenue model,
 │                          construction RFQ, PEA electricity tariff