Rebase costs on USD/THB; add timelines and first market data

Currency
- Base currency moves from EUR to USD and THB throughout. Rates at
  5 Aug 2026: 1 USD = 33 THB, 1 EUR = 1.155 USD, 1 GBP = 1.35 USD.
  EUR/THB lands at ~38, so existing THB research needed no change.
- Vendor quotes keep their original currency with a USD/THB equivalent
  alongside, so they stay checkable against the source PDFs.
- Full vision ~4.7-8.9M USD; phased entry ~1.7-2.9M USD.

New documents
- production-timeline.md: order turnaround stage by stage. Launch
  8-14 weeks, mature 5-10, repress 2-3. Quantifies the in-house
  galvanics turnaround claim the repo had asserted without a number,
  and flags artwork as an unmodelled fourth approval gate.
- project-timeline.md: calendar to first paying release, ~Q4 2028.
  Critical path is BOI certificate to press order to build to
  commissioning. Two findings: Newbilt build time is absent from the
  repo yet carries ~40% of the schedule, and the BOI rule may be
  over-serialised since duty exemption attaches at importation rather
  than at contract signature.

First market data (ResurRec, Bangkok)
- Invoice-derived prices, a factory tour, and a confirmed fleet of one
  Newbilt Classic 12" automatic plus one semi-automatic.
- Price ladder recorded at 300/500/1000-3000/3000+ units. Decomposes
  to roughly 34-50k THB fixed per title and 535-780 THB variable per
  unit, which is 4-7x the price this model assumes.
- The incumbent presses 230-350k records/yr but buys every stamper as
  an import. That single constraint plausibly explains their 150-unit
  floor, their flat discount ladder and their large-run lead time, and
  it is what an in-house galvanics line attacks. Logged as an open
  question on whether galvanics should move from phase 5 to phase 1.
- Inferences are marked as inferences; the whole set is one buyer and
  one plant, and the model is deliberately left unrebased until a
  second data point exists.

Corrections
- Gross margin arithmetic did not follow from its own inputs. Restated
  as ~1.95 USD at the midpoint with the 0.75-3.15 spread shown; the
  previous "40 to 55%" was not supported.
- Direct cost low total 1.50 to 1.45 USD; contingency THB high 40M
  to 38M.
- README indexes the construction RFQ, which was missing.

docs/equipment/pressing-line.md

@@ -25,7 +25,8 @@ The core semi-automatic machinery under evaluation comes from
   (scrap feeds back as the ~20% recycled share of the feedstock), 7" center
   label punch, buffer spindles and separator plates.
 
-The June 2024 Newbilt quotation totals **≈ €200,500** including freight from
+The June 2024 Newbilt quotation totals **EUR 200,500** (about **USD 232k
+/ 7.7M THB** at August 2026 rates), including freight from
 Alsdorf to Thailand and seaworthy packaging. Two major utility systems are
 deliberately excluded and will be **sourced and installed locally in
 Thailand**: a ~400 kg/h steam generator (with water treatment) and a ~250 kW