feature:[DB-006] Update dashboard overview to include TVL and total y……ield metric cards

[Emmanuelluxury]

closes #399
closes #404
closes #406

Zaps: Social Payments on Stellar ⚡

Zaps is a high-speed, interactive social payments platform built on the Stellar blockchain with Soroban smart contracts. It transforms standard financial transactions into peer-to-peer social interactions—allowing users to pay friends, add comments, toggle likes, and share payments publicly or privately, similar to Venmo and Cash App.

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🚀 Key Features

1. Social Payments Feed: Share peer-to-peer payments (e.g. "John paid ₦5,000 to Doe for Lunch") with interactive liking and commenting.
2. Fiat Settlement via Stellar Anchors: Seamlessly deposit and withdraw fiat currencies (including Naira ₦) with automated conversion and settlement handled directly through regulated Stellar Anchors (SEP-24 / SEP-38).
3. Cross-Chain Bridge Funding: Fund your Stellar wallet from other major blockchains (Ethereum, Solana, BNB Chain, Polygon) using our Allbridge Core integration.
4. Soroban Smart Contracts: High-speed, secure, and gas-efficient execution of payments and social graphs on-chain.

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📁 Repository Architecture

• mobileapp/: React Native (Expo) app for social payment interactions, profile management, and Allbridge cross-chain funding.
• backend/: Axum Rust server. Manages off-chain social logs (likes, comments, friends lists) and indices Stellar ledger events.
• contracts/: Soroban smart contracts workspace handling user registries, social payments, and graph relationships.
• dashboard/: Next.js web application for monitoring social statistics, Naira transaction volume, and bridging queues.

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🛠️ Getting Started

📱 Mobile App (Expo)

cd mobileapp
npm install
npm start

🦀 Backend API (Rust)

cd backend
cargo run

⛓️ Smart Contracts (Soroban)

cd contracts
cargo build --target wasm32-unknown-unknown --release
cargo test

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5. DevOps & Infrastructure (/issues/devops/)

• [DO-001] to [DO-005]: Docker configurations, compilation pipelines, deployment templates, and OpenAPI endpoints documentation.

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