Implement `GET /api/analytics/protocol` for global protocol stats

[1nonlypiece]

Description

Provide protocol‑level analytics for dashboards: total commitments, TVL, active vs settled, average compliance, etc.

Implementation Requirements

• Path: src/app/api/analytics/protocol/route.ts.
• Query on‑chain data (and/or caches) to compute:
  • totalCommitments, activeCommitments, violatedCommitments, settledCommitments.
  • totalValueCommitted, averageDurationDays, averageComplianceScore.
• Return all in a single JSON payload.

Acceptance Criteria

• Endpoint returns protocol analytics (even if partially mocked with clear TODOs).
• Uses shared response format.
• Efficient enough for periodic polling.

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[Itodo-S]

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[icedoutskay]

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[tecch-wiz]

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I’d be excited to take this on my experience in smart contract engineering and end-to-end system architecture makes me confident I can deliver exactly what’s needed.

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