This pull request adds a fully interactive, multilingual (Arabic, English, French) demo and awareness UI for the PiDualTx community. The demo interface helps users understand dual-value transactions and the PiDualTx system safely, with no real wallet or network required. It is designed to boost onboarding, trust, and transparency in the community, and is easy to extend or customize in the future. How to use: Download and open the attached HTML file (PiDualTxCommunityDemo_Version3.html) on any device (mobile or PC). All features are available for instant testing, with no setup or fees required. Contributed by: Ze0ro99 — with inspiration from KOSASIH.#6