Release improvements:
- Add standalone Linux agent archives (amd64, arm64, armv7, armv6, 386) to releases
- Previously only Darwin/Windows had standalone agent downloads
Agent version mismatch detection:
- New agentVersion.ts utility compares agent versions against server version
- DockerHostSummaryTable now shows accurate 'outdated' warnings when
agent version is older than the connected Pulse server
- Better tooltips explain version status and upgrade instructions