Refactor Bio::Species tests into modular files

[HussainAther]

Splits t/Species.t into modular test files for maintainability:

• t/Species/basic.t – basic method and constructor tests
• t/Species/memory.t – memory leak and regression tests
• t/Species/taxonomy_db.t – Entrez Taxonomy DB fetch tests (with skip)

This supports clearer test separation and easier maintenance going forward.

[Copilot]

Pull Request Overview

This PR refactors the existing t/Species.t into modular test files for clarity and maintainability, adds focused memory-leak and taxonomy database tests, and introduces dedicated interface tests for Bio::SeqI and Bio::AnnotationI.

• Split species tests into three files: basic functionality, memory regressions, and Entrez DB integration.
• Added standalone tests for Bio::SeqI and Bio::AnnotationI.
• Ensured network-dependent tests are skipped cleanly when unavailable.

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
t/Species/basic.t	Core constructor, binomial, genus, and subspecies behavior tests
t/Species/memory.t	Memory-leak checks and regressions using Test::Memory::Cycle & Weaken
t/Species/taxonomy_db.t	Entrez Taxonomy database fetch tests with skip on network failures
t/SeqI.t	Interface compliance tests for Bio::SeqI
t/AnnotationI.t	Interface compliance tests for Bio::AnnotationI

Comments suppressed due to low confidence (1)

t/Species/basic.t:4

• The test plan declares 8 tests, but only 7 assertions are present. Please adjust the test count or add the missing test.

use Test::More tests => 8;