Press fleet calculator: target output and specials share to fleet mix and needs

User, October 2026: calculations for the later business plan, starting
from 2 Duplex + 1 Classic at 3 records a minute per Duplex and 2 per
Classic, as an interactive tool on the website: pick the yearly output
and the share of splatter/specials, get the machine mix and all the
requirements (people, hydraulics, power, ...).

docs/fleet-calculator.html (single static page, no dependencies):
- target mode sizes the fleet (specials only on Duplex with its EX 35;
  grow with Classics or with Duplex systems; start fleet as the floor);
  fleet mode takes a fleet and gives its output at the specials share;
- output, capacity, utilisation and the mix bar per machine type;
- needs: people per shift and in total, galvanics operators, machines,
  connected kVA and average kW, MWh/yr, central hydraulics (flow, motor,
  oil, accumulator), steam, cooling and cooling water, compressed air,
  press floor, room climate, compound, trim, titles, electroformed parts
  and plating units; checks against the 400 kg/h boiler, 250 kW chiller
  and the 870 m2 Payap press hall;
- ladder from the start fleet to a full Payap press hall, click to load;
- every assumption editable with its source (Newbilt Duplex site
  requirements V14 and offer 240620-04, scale.md, galvanics.md, revenue
  model, Payap model; estimates labelled), shareable link via the hash.
The Classic counts as one HRP 12 press plus one extruder until Newbilt
states figures (Toolex Alpha leaflet as a cross-check).

Site: DEMOS entry (/demos/fleet-calculator/) and landing-page entry.
README bullet and layout line; backlinks from scale.md (capacity) and
pressing-line.md (current plan).

site/build.sh

@@ -19,6 +19,7 @@ cp -R site/public/. "$out/"
 # "<source in the repo> <path under the web root>"
 DEMOS=(
 	"docs/plant-operation.html demos/plant-operation/index.html"
+	"docs/fleet-calculator.html demos/fleet-calculator/index.html"
 )
 for entry in "${DEMOS[@]}"; do
 	read -r src dst <<<"$entry"

site/public/index.html

@@ -63,6 +63,18 @@
         to zoom.</span>
       </a>
     </li>
+    <li>
+      <a href="demos/fleet-calculator/">
+        <strong>Press fleet calculator</strong>
+        <span>Set the records a year and the share of splatter and specials;
+        it sizes the mix of Newbilt Duplex systems and Classic automatic
+        presses and lists what that fleet needs: people, power, central
+        hydraulics, steam, cooling, compressed air, floor, compound and
+        stampers, from the start fleet to a fully equipped press hall.
+        Every assumption is editable and a scenario can be shared by
+        link.</span>
+      </a>
+    </li>
   </ul>
 
   <footer>Built from <code>site/</code> in the cnx_vinyl repository.</footer>