🛑 PR 19: Circuit Breakers & Catastrophic Recovery (254/255)

docs/PiRC-254-Ultimate-Circuit-Breakers.md

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+# PiRC-254: Ultimate Circuit Breakers
+
+## 1. Executive Summary
+This standard defines the "Ultimate Circuit Breaker" for the Pi Network DeFi ecosystem. It acts as a global failsafe that can pause all protocol interactions if a catastrophic Parity Invariant failure or massive TVL drain is detected.
+
+**Dependencies**: PiRC-207, PiRC-230
+**Status**: Complete reference implementation
+
+## 2. Architecture
+- Global pause functionality across all PiRC standards
+- Automated triggers based on TVL velocity and Parity deviation
+- Multi-sig or governance-driven unpause mechanisms
+
+## 3. Reference Smart Contracts
+**Solidity**: `contracts/PiRC254CircuitBreaker.sol`
+**Soroban**: `contracts/soroban/src/circuit_breaker.rs`
+
+## 4. Implementation Roadmap
+- Phase 1: Global pause modifiers
+- Phase 2: Automated TVL and Parity triggers
+- Phase 3: Gradual unpause and recovery routing

docs/PiRC-255-Catastrophic-Recovery-Protocols.md

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+# PiRC-255: Catastrophic Recovery Protocols
+
+## 1. Executive Summary
+This standard outlines the emergency recovery protocols to be executed in the event of a circuit breaker activation (PiRC-254). It provides mechanisms for state rollbacks, emergency withdrawals, and Justice Engine reallocation.
+
+**Dependencies**: PiRC-254, PiRC-228
+**Status**: Complete reference implementation
+
+## 2. Architecture
+- Emergency withdrawal windows (pro-rata distribution)
+- State snapshot and rollback coordination
+- Justice Engine recovery execution
+
+## 3. Reference Smart Contracts
+**Solidity**: `contracts/PiRC255CatastrophicRecovery.sol`
+**Soroban**: `contracts/soroban/src/catastrophic_recovery.rs`
+
+## 4. Implementation Roadmap
+- Phase 1: Emergency pro-rata withdrawals
+- Phase 2: State snapshotting mechanisms
+- Phase 3: Full Justice Engine recovery integration