Add Pheenix galvanics flyers and Sibert stamper prep specs

docs/equipment/pheenix-alpha/: the four Pheenix Alpha electroforming flyers
(2024: PASU silvering, PPPU pre-plating, PDPU dual-cell plating, PMPB
passivation bench), renamed from their download hashes.
docs/equipment/sibert/: the VSP, VSF and VSC technical specifications
(2021), plus Sibert's 2008-09 optical-disc SPS literature and the 2008
Blu-ray stamper characteristics paper in sps-optical-disc-2009/. Two
byte-identical duplicates in the download were dropped.

New docs/equipment/galvanics.md, the metal-path counterpart to
pressing-line.md: datasheet tables for both ranges and what they change.
Pheenix is a second turnkey galvanics vendor next to Digital Matrix and
can quote lacquer-to-record as one vendor; neither range includes water
treatment. Utilities from the sheets (~27 kVA connected per line, DI water,
12-20 C cooling water, extraction sizes), ~5.6 m2 of footprint, and a cell
count estimate (one PDPU at the low end, two at the high end). The Sibert
machines are single-phase, 200/250/600 kg on castors, centre manually and
list no data interface; the VSC locates on the punched hole; the finisher's
water carries nickel. Weights, cycle times, prices and mould fit are listed
as quote questions.

Backlinks and small updates: README (bullet, layout tree, vendor list),
roadmap items 6 and 23, vendor landscape, supplier map, exhibitor briefing
(on-file notes, Sibert three-phase question answered), digital factory
(Pheenix PLC data, Sibert data question, RFQ clause 5), quality automation
(hardness on the centre slug, BD paper as the acceptance-spec model),
sustainability (finisher water), total investment block label (numbers
unchanged), scale (galvanics feeder note), crane weight table, process
flow, pressing-line stamper-fit question, plant page detail lines.

docs/suppliers/making-vinyl-europe-2026-exhibitors.md

@@ -305,6 +305,14 @@ founder Niklas Poblenz stays on innovation and customer support. Sibert
 installed equipment at Pheenix in January 2025. Deepgrooves (NL, attending)
 runs AD12 presses on biomass steam. Contact in this repo:
 andreas.runsten@pheenixalpha.com.
+
+**On file** (filed with the Making Vinyl material, October 2026): four
+electroforming flyers from 2024 (PASU silvering, PPPU pre-plating, PDPU
+dual-cell plating, PMPB passivation bench) in
+[`../equipment/pheenix-alpha/`](../equipment/pheenix-alpha/), summarised in
+[galvanics and stamper prep](../equipment/galvanics.md). Pheenix builds the
+galvanics line as well as the presses, so the quote below should cover
+both.
 Site: https://www.pheenixalpha.com/
 
 **Why they matter.** The alternative single-vendor path (AD12 + AD12
@@ -334,6 +342,9 @@ Roadmap item 5.
 - What did the new CEO change commercially: financing, leasing, staged
   delivery, regional agents?
 - What are the "latest releases" mentioned in the Haarlem announcement?
+- Galvanics line (PASU, PPPU, PDPU, PMPB): budget quote next to the AD12,
+  measured cycle per part per cell, empty and filled weights, PLC protocol,
+  and the water-treatment partner their customers use.
 
 ## 9. PlastChem (Hardenberg, Netherlands)
 
@@ -373,6 +384,16 @@ the best-documented one on the market. Not on the 2021 supplier list.
 preparation equipment: **VSP** stamper punch, **VSF** back finisher, **VSC**
 coiner (trim and form in one pass). Contact in this repo: sales@sibert.co.uk,
 Ian Locke. Installed equipment at Pheenix Alpha in January 2025.
+
+**On file** (filed with the Making Vinyl material, October 2026): the VSP,
+VSF and VSC technical specifications (2021) and Sibert's 2008 to 2009
+optical-disc SPS literature, in [`../equipment/sibert/`](../equipment/sibert/),
+summarised in [galvanics and stamper prep](../equipment/galvanics.md). They
+answer part of the list below: all three machines run single-phase 115 to
+230 V, so no three-phase supply is needed; the VSC claims tooling for every
+vinyl mould; the VSP centres manually under ×100 optics; no data interface
+is listed. Prices, tooling cost per mould, the Pheenix installation and
+service in Asia stay open.
 Site: https://www.sibert.co.uk/
 
 **Why they matter.** Exactly the gap between the plating line and the