Root cause: terminal availability checks still imported minisweagent for the
local backend even though local/singularity now use Hermes wrappers directly.
In git worktrees, the local submodule path may also be an empty placeholder,
so direct path insertion could miss the populated mini-swe-agent checkout.
This change:
- adds a helper to discover mini-swe-agent from the current checkout or the
main checkout behind a worktree
- uses that helper in terminal_tool and mini_swe_runner
- stops requiring minisweagent for the local backend requirements check
- adds regression tests and validates terminal/file tool resolution again
teknium1
df7a86f041