Add build command before running cargo Update PostgreSQL installation
commands to use relative paths
Update Linux and macOS installation commands to use `chmod +x ./bin/*`
instead of `chmod +x bin/*`
Implement a new method `start_all` in `BootstrapManager` to start all
components using the `PackageManager`.
This method creates a new `PackageManager` instance and uses it to start
each component in a predefined list.
--- Add remove_local for PackageManager
Remove component specific code
The specific code for component 'tables' has been removed from the
`remove_local` method in `PackageManager`.
The method now simply removes the binary directory for the component.
--- Implement start for PackageManager
Add a new method `start` to `PackageManager` to start a component.
This method takes a component name as an argument and uses the
`exec_cmd` for that component to spawn a new process.
If the component is not found, it returns an error.
Implement core package manager with component configuration, installer
logic, OS detection, and a command‑line interface for install, remove,
list, and status operations.
