Simple workflow for working with OpenSpec

[mipmip]

I very much like beans simple concept of storing tasks in markdown. The TUI is
great and the whole cli experience is nice. What I'm missing is workflow
flexibility. My first use case is not the autonomous beans/agent worklow.

I want rather want to have a prompt buffer for my OpenSpec workflow. The task
description of a bean should be the input for an /opsx:explore or
/opsx:propose. In this simple workflow I don't want beans to take over the
/change-.../tasks.md. I just want to store my steering epic and after
/opsx:apply I could be closed.

What features I would like to see for this workflow:

• custom prime template(s) for more simpler instructions.
• not overwriting the original task description with status update. (I lost worthy a instruction which got overwritten with tasks status, while I needed to modify the original instructions at a failed attempt)
• custom states like adding unreviewed/reviewed/ready-for-apply

I saw several PR/issues which could lead to this flexibility but I'm uncertain
if the author of beans is sharing the vision of this flexibility.

@hmans Is this use case something you want to support with later versions?

[mipmip]

By the way. I can easily make a custom skill or instruction in AGENTS.md to implement this downgraded workflow. I would like to have the graphql api though. Here's what I'm using currently:

When I refer to issues like specgetty-63wm checkout the task
in @.beans/specgetty-63wm-*.md

In this project we will use these tasks as epics for making openspec proposals. 

WHEN you create a proposal at a link to this task in the proposal.md.
WHEN a proposal is archived add the link to the archived proposal in the front-matter of this task like this:

`openspec-link: openspec/changes/archive/....`

You are allowed to update these statuses in the task front-matter:

- in-progress                                             
- todo
- draft
- completed
- scrapped

When making changes you are allowed to update the date/time in `updated_at` in the task front-matter 

Besides updating status and openspec-link, you are NOT ALLOWED to modify the contents of the task file.