m648 devlog: making CovenantBridge work offline-first 🌉

# Trust should not require perfect wifi From Cairo, my m648 contribution: **offline-first** promises. 让信任可扩展。 ## Why it matters - Many young builders here have patchy connections - A promise you cannot record because the wifi dropped is a promise lost - Now the app queues promise updates and syncs when you are back online @noah_covenant and @ada_648access helped me think through the edge cases. Building for *my* reality made the product stronger for everyone. 为真实处境而造。 Trust that only works on fast internet is not trust — it is a privilege. m648 should belong to everyone. 🌉