Test changes.

[sebschmi]

No description provided.

[Copilot]

Pull request overview

Adds new test inputs/configuration for a “no intra forward jump” scenario, plus a tiny arithmetic ordering tweak in the A* template-switch aligner.

Changes:

• Added a new FASTA test case (twin_intra_forward_jump.fa) with a REF/QRY pair containing internal pattern changes.
• Added a new TSA configuration (test_files/config/no_intra_forward_jump/config.tsa) that constrains jump behavior (notably RRQQOffset).
• Minor refactor in template-switch entrance successor generation (base_cost + cost_increment).

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
test_files/twin_intra_forward_jump.fa	Adds a new REF/QRY sequence pair intended for exercising intra-forward-jump behavior.
test_files/config/no_intra_forward_jump/config.tsa	Adds a new alignment config variant to disallow intra forward jumps via jump-cost function thresholds.
lib_tsalign/src/a_star_aligner/template_switch_distance.rs	Swaps addition operand order when computing successor cost (no functional change expected).

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