Allow selecting a Hermes profile in the VS Code extension

[stefanpieter]

Hermes already supports multiple isolated profiles, and the VS Code extension currently appears to launch Hermes without a way to choose which profile is used.

It would be very useful to add a per-agent profile selector in the extension, or at least a way to pass --profile <name> when defining an agent.

Why this matters

• I may want a dedicated lightweight profile for VS Code/editor work
• I may want a different profile for experiments, higher reasoning, or separate credentials
• Right now the extension seems to rely on Hermes's sticky default profile only

Suggested behavior

• Keep the current default behavior when no profile is set
• Add an explicit profile setting for an ACP agent, or expose a UI selector
• Launch Hermes with the chosen profile, for example:
  • hermes --profile vscode-fast acp

Example use case

• Default profile: normal CLI/chat use
• VS Code profile: lower reasoning / faster model / narrower tools

Thanks for considering it.