Feature Request: URL scheme or CLI arguments for programmatic launch

Use case

I'm using opcode as part of an automated PBI (Product Backlog Item) workflow. When I start a work session, a shell script:

Creates a LiteLLM virtual key for cost tracking
Finds the relevant PBI markdown file
Should open opcode with the correct project and the PBI content pre-loaded as context

Currently there's no way to do this without manual interaction.

Please add one of the following (in order of preference):

Option A – URL scheme

opcode://open?path=/Users/me/projects/kira&prompt=<encoded_text>

Option B – CLI arguments

/Applications/opcode.app/Contents/MacOS/opcode --path /Users/me/projects/kira --prompt "..."

Option C – Launch file (.opcode.json)
A file format that opcode recognizes on open, containing project path + initial prompt.

Copying the PBI content to clipboard via pbcopy and asking the user to manually paste after launch. Works, but breaks the automation flow.