* perf(terminal): batch file-link existence checks on their owning host
* test(relay): allow additive filesystem capabilities
* fix(web): keep terminal file links working under batched existence checks
createShellApi omitted pathsExist, so withFallback answered the new batch
call with a truthy proxy resolving to undefined and the whole hover batch
rejected — dropping every link on lines with an out-of-worktree path.
* test(web): assert the shim without type assertions
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Co-authored-by: m4air <m4air@Mac.localdomain>
Co-authored-by: m4air <m4air@m4airs-MacBook-Air.local>
Co-authored-by: Neil <neil@stably.ai>
