V0.5.0 deliverables

[closedLoop]

• Adding autocomplete run {number} to run the most recent command (also make sure to add it to history
• Change prompt if --help is in it to instead respond with description of parameters (also add man to context window)
• Bug: ensure history is populated and is loaded not from a subshell see --dry-run
• Bug: autocomplete command "description" should remove command` from prompt
• Bug: add --help output for instances when there are multiple commands like gh create should call gh create --help and not gh --help
• Add ac as an alias to autocomplete
• Add new Grok models https://console.groq.com/docs/models
• Show how to support Fireworks-AI endpoint
• Update landing page
• Update README