v1.2.0

What's New

• Global summary sensor — aggregates running container count across all agents, with per-agent breakdown in attributes (total_stacks, total_containers, running_containers, agents)

Fixes

• Reconnection resilience — coordinator preserves stacks from known agents that temporarily return no data, preventing entities from going unavailable after a brief disconnect
• Increased API timeout — stacks endpoint timeout raised from 10s to 30s to handle multi-agent proxy latency