Phase 4 implementation - adds three new service SDKs:
Economics SDK:
- Pricing calculations for all service types
- Billing and invoice management
- Staking with APY rewards and vesting
- Discount code system
Governance SDK:
- Proposal lifecycle (create, vote, execute, cancel)
- Voting power with delegation support
- DAO creation (token, multisig, hybrid types)
- Vesting schedules with cliff periods
Mining SDK:
- Stratum pool connections
- Block template retrieval and work submission
- Hashrate and earnings statistics
- GPU device management and configuration
- Worker management and algorithm switching
Languages: JavaScript, Python, Go, Rust
Total: 12 SDK packages
