Build offline item appraisal calculators

Create a standalone HTML calculator from the three supplied Station Trade Commission guide images. Implement all price bonuses, production and facility validation, packaging override, deluxe consistency, logo checks, and 40-credit minimum. Show live total, price breakdown, and failure reasons; responsive and offline. Treat facilities as 01–35; first-run Ribwich sticker must be absent per guide. Extend the same app with Plasma Cartridge and Cybernetic Hand calculators and cropped screenshot imagery. Share result rendering and item navigation. Plasma page 4/7 (color rules) is missing: low-grade −150 is confirmed by page 7, high-grade adjustment remains unknown and must not be invented; high-grade totals must remain explicitly incomplete until supplied. Implement manufacturer eligibility without counterfeit overrides, cumulative cartridge attributes, hand material/condition/interface/add-ons and tactical/deluxe sets. Validate rule boundaries and browser interactions. Implemented three calculators, shared result rendering/navigation, and 19 screenshot crops with identification galleries. Node regression suite passes 9,184 checks. Chrome verified guide examples, minima, manufacturer matching, tactical 425/500, deluxe 620/750, resets, preserved per-item values, images, and mobile layouts; final regression reported no console errors. Inspector passed at 1440/768/390. Direct file operation not browser-verified (tool rejects file URLs). Remaining blocker: plasma page 4/7/high-grade adjustment is absent; high-grade shows Incomplete unless user manually supplies the adjustment. Mobile select fields changed to single-column after observed label truncation; final Chrome recheck at 390×844 passed: labels fully visible, no overflow, high-grade incomplete state intact.