Implement self-update capability for the unified pulse-agent binary:
- Add internal/agentupdate package with cross-platform update logic
- Hourly version checks against /api/agent/version endpoint
- SHA256 checksum verification for downloaded binaries
- Atomic binary replacement with backup/rollback on failure
- Support for Linux, macOS, and Windows (10 platform/arch combinations)
Build and release changes:
- Dockerfile builds unified agent for all platforms
- build-release.sh includes unified agent in release artifacts
- validate-release.sh validates unified agent binaries
- Install scripts (install.sh, install.ps1) use correct URL format
Related to #727, #737
Removed all legacy Pulse+ agent metrics infrastructure (cloud-relay) which has been
fully replaced by the new docker agent and temperature agent implementations.
Changes:
- Remove cloud-relay directory and all related binaries (relay, relay-linux, etc.)
- Remove Pulse+ documentation (AGENT_METRICS_IMPLEMENTATION.md, AGENT_METRICS_SETUP.md)
- Clean up pulse-relay references in workflows and release checklist
- Add audit log rotation documentation for sensor proxy hash-chained logs
- Update .gitignore to remove cloud-relay/ entry
The new docker and temp agents remain fully functional and unaffected by this cleanup.
The name "temp-proxy" implied a temporary or incomplete implementation. The new name better reflects its purpose as a secure sensor data bridge for containerized Pulse deployments.
Changes:
- Renamed cmd/pulse-temp-proxy/ to cmd/pulse-sensor-proxy/
- Updated all path constants and binary references
- Renamed environment variables: PULSE_TEMP_PROXY_* to PULSE_SENSOR_PROXY_*
- Updated systemd service and service account name
- Updated installation, rotation, and build scripts
- Renamed hardening documentation
- Maintained backward compatibility for key removal during upgrades