[Feature]: Implement ToolHive into the start_all.py script

[chkp-stevegi]

Confirmation

• This proposal is limited to ONE clearly defined enhancement.
• I understand this is a demo repository, not a production platform.

Problem Statement

ToolHive is currently manually installed using the desktop version for either PC or MacOS. It would be nice if thge start_all.py actually did start everything.

Proposed Solution

Successfully check for presence of, installed if required, and then run ToolHive on the command line with the correctly configured MCP servers Fetch and Filesystem (prompting the user for the mount points for filesystem MCP server which should be default be the fakecompanies/files directory).

Scope Boundaries

Try to keep this back compatible for anyone that has toolhive desktop already installed.

Demo Value

Ease of use and easy of install.

Estimated Complexity

Medium (new module or integration)