[Phase 5] Usage Guide and Examples

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Goal

Write detailed usage guide and example code.

Task List

• Update README.md
• Write quick start guide
• Write complete usage examples
• Write best practices guide
• Create example project

Example Content

• Basic type encoding/decoding
• Metadata parsing
• Extrinsic building
• Integration with Substrate RPC

Acceptance Criteria

• Documentation clear and easy to understand
• Examples are runnable
• Covers main use cases

Estimated Time

3-4 days