- Add new `shared_infrastructure` example demonstrating multi-wallet
resource sharing pattern
- Update `trading_client` example to show both initialization methods
- Update README with:
- New feature: "Shared Infrastructure" in features list
- Both methods (simple and shared) in TradingClient creation section
- New example in examples summary table
- Add `shared_infrastructure` to workspace members
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>