Bug: pathsMatch can produce false positives (no directory boundary check)

[astefano]

Description

In ProbeLean/Verify.lean, the pathsMatch function uses String.endsWith without a directory boundary guard:

def pathsMatch (path1 : String) (path2 : String) : Bool :=
  path1 == path2 ||
  path1.endsWith path2 ||
  path2.endsWith path1 ||
  normalizePathForMatch path1 == normalizePathForMatch path2

Example: pathsMatch "ATest.lean" "Test.lean" returns true even though they are different files. This could cause sorry warnings from one file to be incorrectly attributed to atoms in another file with a similar-suffix name.

Suggested Fix

Check for a path separator before the suffix match:

path1.endsWith ("/" ++ path2) || path1 == path2