fix(agent): resolve config path absolutely and ensure correct CWD for background processes

fix(agent): correct path to bootstrap_installer in updater ...

- Updated the relative path to 3 levels up to correctly find the bootstrapper in the agent-node root.\n- Bumping to 1.0.6.

fix(agent): enable INFO logging and bump to v1.0.3 ...

- Unified logging to stdout so update progress is visible in agent.out.log.\n- Triggering update to v1.0.3.

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