Feature Request: Allow configuring the name of OpenCode.md

[ezynda3]

I've been playing around with a lot of AI coding tools and each one seems to want to create basically a readme about my repo in some special md file. Rather than have a separate Claude.md or OpenCode.md etc it would be nice to configure OpenCode to look at a specific file that I've configured. For example my team at work decided on conventions.md and we use this as context when working with AI coding tools.

[kujtimiihoxha]

Yeah this should be pretty easy to add, we could just add a new config to specify context files and use the config here https://github.com/opencode-ai/opencode/blob/main/internal/llm/prompt/prompt.go#L41

[kujtimiihoxha]

@ezynda3 this has been fixed by #86 you can now specify the context files you want to include