A failed lookup was reported as no change and returned success.
Track failures where exceptions occur rather than parsing status text.
Report independent successful lookups, then stop before any pin,
install or dependency refresh if one lookup failed.
Verification: the real PM CLI exercises check and apply with failed,
mixed, current and manual-source results. Mutation boundaries stay
unreached and the temporary lock stays unchanged. The focused gate
passed 36 tests with no failures. Lint passed.
No upstream package, real pin table or installed environment changed.
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