CRYOPULSE NITROGEN SUPPLY SCREENS / PHYSICAL MEASUREMENTS: 0

Conditional requirements simulations, not measured component or vehicle results.
Extract beside the P5.0 engineering-special source package and its named
immutable P4.4/P4.5/P4.6/P4.8 dependencies, keeping the project folder names.
https://cryopulse.org/research/special/files/CryoPulse-P5.0-engineering-special.zip
Python 3.12 with numpy/scipy/CoolProp; build the .4 and 1.5 loss-map caches as
described in P5.0. Replay from the common parent:
python cryopulse-p51/scripts/nitrogen_options.py
python cryopulse-p52/scripts/consumption.py

P5.1 contains three recovery-on/off screens. P5.2 contains three expansion
budgets. Both control runs reproduce the P5.0 nominal-step peak exactly.
Every screen retains the original full wet mass and initial nitrogen inventory.
No empty-tank mass credit or cold-engine full-power qualification is implied.
Expanded nitrogen is not the purchased refill quantity: preparation, standing,
hold-up and transfer losses must be counted separately.
The headline P5.0 scorecard uses a finer step; these screens use nominal steps.
Stationary manufacturer specifications are examples, not selected hardware,
measured duty-cycle energy use or a purchase recommendation. Onboard production
receives no performance/energy credit. No supplier has been contacted.
