feat(readme): add AxonFlow governance plugin

[saurabhjain1592]

Resource Details

• Name: @axonflow/openclaw
• URL: https://github.com/getaxonflow/axonflow-openclaw-plugin
• Category: Plugins and Integrations
• Description: Policy enforcement, approval gates, and audit trails for OpenClaw tool execution.

Why it belongs here

AxonFlow is the first governance-focused plugin for OpenClaw. While the ecosystem has strong coverage for routing (Manifest), integrations (Composio), memory (Hyperspell, MemOS), and observability (Opik, ClawMetry), governance is still underbuilt.

This plugin adds:

• Tool input policy enforcement via before_tool_call (blocks dangerous commands, detects PII, enforces rate limits)
• Outbound message scanning via message_sending (PII/secrets redaction before delivery to Telegram/Discord/Slack)
• Human approval gates for configurable high-risk tools
• Audit trail for tool calls and LLM activity
• In-process governance metrics
• Fail-open/fail-closed configuration for AxonFlow availability

Published on npm (@axonflow/openclaw) and ClawHub. MIT licensed. 86 tests, E2E verified against live AxonFlow + OpenClaw.

Checklist

• Resource is relevant to the OpenClaw ecosystem
• Resource is publicly accessible
• Resource is actively maintained
• I will submit a follow-up PR linking this issue