GreeksHub: Federated Cross-Venue Options Greeks Aggregation for Hedge Optimization

Overview
- A production-ready, Python-based MVP that demonstrates canonical primitives for local hedge problems, aggregated signals, and incremental hedge actions across multiple venues.
- Core primitives mirror CatOpt-like representations: LocalHedge, SharedGreeks, PlanDelta, with Governance via AuditLog and PrivacyBudget.
- A Graph-of-Contracts (GoC) skeleton registry to version adapters and data contracts; two toy adapters to bootstrap interoperability.
- An ADMM-lite coordinator enabling edge/cloud cross-venue aggregation with deterministic replay semantics.

What's included
- Core primitives (src/idea147_greekshub_federated_cross/core.py)
- GoC registry skeleton (src/idea147_greekshub_federated_cross/registry.py)
- Adapters (price/vol feed, broker) under src/idea147_greekshub_federated_cross/adapters/
- Lightweight coordinator (src/idea147_greekshub_federated_cross/coordinator.py)
- Minimal tests (tests/test_greeks_hub.py)
- Packaging metadata (pyproject.toml) and test script (test.sh)

Usage
- Run tests: ./test.sh
- For local experimentation, import modules from idea147_greekshub_federated_cross.*

Note
- This is an MVP scaffold intended to evolve into a production-ready architecture as per the project spec.