Add support for multiple networks (Testnet/Mainnet switch)

[big14way]

Allow users to switch between Stellar Testnet and Mainnet from the UI.

Acceptance Criteria:

• Add network selector dropdown in Navbar
• Update RPC URL and contract ID based on selected network
• Persist selection in localStorage
• Show confirmation dialog when switching networks
• Clear cached data on network switch

Files: src/components/Navbar.tsx, src/lib/sorosave.ts, src/app/providers.tsx

[opensecretsauce]

@algora-pbc attempt — implementing Testnet/Mainnet network switcher. PR incoming.

[realmpastai-web]

Hi! I'd like to work on this issue. I've already implemented a complete network switching solution:

Implementation:

• Network configuration with Mainnet/Testnet support
• React Context for global state management
• Dropdown selector with visual network indicators
• Confirmation dialog before switching
• localStorage persistence for user preference
• Automatic cache clearing on network change

PR: #103 is ready for review

ETA: Ready now

[zhaog100]

🎯 Attempting this Bounty!

Hi @sorosave-protocol team! 👋

I am very interested in implementing multiple network support (Testnet/Mainnet) for your frontend.

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💼 Relevant Experience

Blockchain Network Integration

• ✅ Multiple network support implementation
• ✅ Testnet/Mainnet switching logic
• ✅ Network configuration management
• ✅ RPC endpoint handling and failover

Frontend Development

• ✅ React/TypeScript expertise
• ✅ State management (Redux, Zustand, Context)
• ✅ Configuration-driven architecture
• ✅ User-friendly network switching UI

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🚀 Proposed Approach

Phase 1: Architecture (Day 1)

• Design network configuration structure
• Create network types and interfaces
• Plan state management approach
• Design network switcher UI

Phase 2: Core Implementation (Day 2-3)

• Implement network configuration
• Add network switcher component
• Update API calls to use selected network
• Add network detection and persistence

Phase 3: Testing (Day 4)

• Testnet connectivity tests
• Mainnet connectivity tests
• Network switching tests
• Error handling tests

Phase 4: Polish (Day 5)

• UI/UX improvements
• Loading states
• Error messages
• Documentation

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📋 Deliverables

• ✅ Multiple network support (Testnet/Mainnet)
• ✅ Network switcher UI component
• ✅ Configuration documentation
• ✅ Demo video showing network switching
• ✅ Testing report

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⏱️ Timeline

• Start: Immediately after assignment
• Duration: 4-5 days
• Communication: Daily updates on this issue

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💰 Payment

Wallet Address:

• Token: USDT (TRC20)
• Address: TGu4W5T6q4KvLAbmXmZSRpUBNRCxr2aFTP

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Ready to start immediately! Looking forward to your response! 🙏

/attempt #80