fix(agent): separate hub vs node authentication tokens in bootstrap installer ...

- bootstrap_installer now uses 'secret_key' for HTTP hub requests (version/download) and correctly preserves/restores the node-specific 'invite_token' (auth_token) for gRPC.

fix(agent): bootstrap installer auth token precedence ...

- Fix 401 Unauthorized during upgrades by having bootstrap_installer check for `secret_key` in agent_config.yaml before falling back to `auth_token`, since the /api/v1/agent/version endpoint expects the Hub's global SECRET_KEY rather than a node's specific invite token

refactor: organize agent-node client code structure by moving core packages to src/ ...

- Moved agent_node, protos, and shared_core inside src/

- Updated Dockerfile, deployment scripts, compile_protos.sh, installers

- Updated bundle generation in ai-hub to reflect cleaner structure and better README

feat: add daemon/service installation for Mac and Linux ...

- Added install_service.py to configure launchd on macOS and systemd on Linux

- Added --daemon flag to bootstrap_installer.py which acts as a simple 1-click install

feat: add swarm control chat history clear & agent node auto-update system ...

- Added API and UI to clear chat history in Swarm Control while preserving node sync

- Implemented HTTP-based auto-update agent bootstrapper and core daemon

- Removed unused workflow profile and orphaned voice-interaction-handler skill

- Fixed voice chat response duplication and tool-belt instructions