zhi
929a722c66
docs: add OpenClaw Plugin development plan
- docs/OPENCLAW_PLUGIN_DEV_PLAN.md: Complete development plan
* Backend capability assessment
* Security analysis (current HTTP heartbeat lacks validation)
* Three implementation options (enhanced HTTP / API Key / encrypted payload)
* Phased development plan (Phase 1-3)
* API specifications
* Data models
* Sequence diagrams
- docs/examples/monitor_heartbeat_secure.py: Reference implementation
for secure HTTP heartbeat with challenge validation