chore: update error messages in compatibility.go (#2636)
* chore: update error messages
Signed-off-by: Mark Phelps <mphelps@cloudflare.com>
* test: add integration test for torch version required error message
Adds a testscript-based integration test that validates the error message
when torch is specified without a version and GPU is enabled. This ensures
the fix from PR #2619 continues to work correctly.
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Signed-off-by: Mark Phelps <mphelps@cloudflare.com>
