Align SDK and CLI with OCP Zero Trust and Architectural Pillars

[dcplatforms]

Mandate Compliance Audit and Alignment

This PR aligns the OCP SDK, CLI, and Documentation with the foundational "Five Pillars of OCP," focusing on Architectural Integrity, Zero Trust Security, and Developer-First Excellence.

Key Changes:

1. Zero Trust Error Consistency:

   • Updated A2AService._validateAgentPolicy and AgentService.performA2ATransfer to prefix all policy validation failures with Zero Trust Validation Failed: .
   • Refactored TokenizationService.signWithToken to avoid double-prefixing errors caught from the MandateService.

2. CLI Architectural Integrity:

   • Refactored the ocp-cli x402:settle command to instantiate and utilize TokenizationService and Web3Service directly. This ensures the CLI follows the same "Last Line of Defense" cryptographic validation as the core SDK.

3. Documentation DevEx & Structure:

   • Migrated documentation routes from [slug] to [...slug] to support nested content hierarchies (e.g., /docs/api/wallet).
   • Updated lib/docs.ts with recursive file discovery to automatically capture all Markdown files in docs/product-hub/content.
   • Expanded the hardcoded sidebar in the Next.js app to include "API Reference" and "Integrations" categories.
   • Implemented cross-platform path normalization (handling Windows backslashes) in documentation slug generation.

4. Verification:

   • All core unit and integration tests passing (npm test).
   • Manual verification of ocp-cli settlement rails with both valid and budget-exceeding mandates.
   • Playwright-based visual verification of the updated documentation navigation and nested routing.

This alignment ensures that OCP remains a professional-grade framework where every transaction is backed by a verifiable "Chain of Evidence."

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PR created automatically by Jules for task 16394330935408505649 started by @dcplatforms

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