[kingsrichie79-cmyk]

Closes #970

Overview

Implements escrow functionality allowing funds to be securely held and released based on defined conditions.

Key Features Implemented

1. Escrow Contract Interface (src/types/escrow.ts):

   • Comprehensive escrow contract interface (IEscrowContractService) and data structures.
   • Condition definitions for time locks, milestone completion, multi-signature approvals, oracle data feeds, balance thresholds, and custom predicates.
   • Composite condition logic (ALL, ANY, THRESHOLD).

2. Condition Evaluation Engine (src/lib/escrow/conditionEngine.ts):

   • Pure, deterministic evaluation of individual conditions and composite boolean logic.
   • Granular failure diagnostics and remaining time calculations.

3. Escrow State Machine (src/lib/escrow/stateMachine.ts):

   • Strict transition enforcement across Created, Funded, Evaluating, ReadyForRelease, Released, Disputed, Refunded, and Cancelled.
   • Invariant guard ensuring releases are strictly prevented while under dispute hold.

4. Release Trigger System (src/lib/escrow/releaseTrigger.ts):

   • Automated release trigger executing immediately when conditions are met.
   • Manual release controls for authorized parties.
   • Proportional multi-recipient share distribution and dispute split payouts.

5. Dispute Hold Mechanism (src/lib/escrow/disputeHold.ts):

   • Dispute raising with evidence attachment, immediately halting payouts.
   • Arbitration resolution supporting release, refund, or split outcomes.

6. Escrow Analytics & Dashboard (src/lib/escrow/analytics.ts, src/components/escrow/EscrowAnalyticsDashboard.tsx):

   • Real-time TVL, active/released/disputed volume metrics, condition pass rates, and dispute resolution performance.
   • Exportable Markdown performance report.

Acceptance Criteria Verified

• Escrow payments can be created
• Conditions evaluated correctly
• State transitions work properly
• Releases trigger automatically
• Disputes prevent release
• Analytics show escrow data
• All tests pass

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