W-22203672: add hidden --agent-json flag to agent preview start#405

andresrivas-sf wants to merge 4 commits intomainsalesforcecli/plugin-agent:mainfrom

ar/W-22203672/agent-json-flag-preview-startsalesforcecli/plugin-agent:ar/W-22203672/agent-json-flag-preview-startCopy head branch name to clipboard