services/agent-system/runtime-materializer/materializer.py:
- Add materialize_from_api() that fetches all world-state endpoints
from the control-plane HTTP API (CONTROL_PLANE_URL env var)
- When CONTROL_PLANE_URL is set, use API as source of truth instead of Redis
- Redis path preserved as fallback for backward compat
hosts/piha/runtime/agent-system/docker-compose.override.yml (new):
- Inject CONTROL_PLANE_URL=http://100.95.58.48:18180 for runtime-materializer
- piha webui /snapshot now mirrors VPS observer output (clean, ghost-free)
Root cause: materializer read from Redis which held 80 stale service entries
with hash-prefixed ghost keys (e.g. 0ccb8a88e079_control-plane-supervisor).
Redis is never updated by the current observer pipeline; the control-plane API
is the single authoritative world-state source.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>