[BUG] Fix duplicated words in AptaTrans docstring and comment

[adarshh347]

Reference Issues/PRs

Fixes #397

Follows the same pattern as the previously merged MCTS docstring cleanup (commit 70e63e6).

What does this implement/fix? Explain your changes.

Removes two stray word duplications in pyaptamer/aptatrans/:

File	Line	Before	After
pyaptamer/aptatrans/_pipeline.py	2	AptaTrans' complete pipeline for for aptamer-protein interaction prediction and	AptaTrans' complete pipeline for aptamer-protein interaction prediction and
pyaptamer/aptatrans/_model.py	223	# pass the the encoder a padding mask to ignore zero-padded tokens	# pass the encoder a padding mask to ignore zero-padded tokens

Both changes are text-only (one word deletion each). There is no behavioural, API, or import change.

A repo-wide scan for common duplicated-word patterns (for for, the the, and and, of of, in in, to to, is is, with with, that that, as as) confirmed these are the only remaining occurrences under pyaptamer/.

What should a reviewer concentrate their feedback on?

• That the rewording still reads correctly in context (no semantic change intended).
• Whether the reviewer would prefer this split into two PRs (one per file). I bundled them because the scope is identical and the combined diff is two lines.

Did you add any tests for the change?

No tests added. The changes are in a module docstring and an inline comment; there is no runtime behaviour to assert. This follows the precedent of commit 70e63e6 (MCTS docstring fix), which was merged without tests for the same reason.

Any other comments?

Diff summary:

 pyaptamer/aptatrans/_model.py    | 2 +-
 pyaptamer/aptatrans/_pipeline.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

PR checklist

• The PR title starts with either [ENH], [MNT], [DOC], or [BUG]. [BUG] - bugfix, [MNT] - CI, test framework, [ENH] - adding or improving code, [DOC] - writing or improving documentation or docstrings.
• Added/modified tests — not applicable; docstring/comment-only change.
• Used pre-commit hooks when committing to ensure that code is compliant with hooks. pre-commit run --files pyaptamer/aptatrans/_pipeline.py pyaptamer/aptatrans/_model.py passes (ruff-format, ruff, mixed-line-ending).