System creates ambiguous RNA nucleotides instead of DNA ones in case of DNA antisense stand creation

[AlexeyGirin]

Steps to Reproduce

1. Go to Macro - Sequence mode (clean canvas)
2. Load canvas with:

• ambiguous RNA nucleotides - NDHW
• ambiguous DNA nucleotides - NDHW
• ambiguous nucleotides - MRV
  using following KET: System creates ambiguous RNA nucleotides instead of DNA ones in case of DNA antisense stand creation.zip
  

3. Select all nucleotides and call context menu
   
4. Click Create DNA antisense stand option

Actual behavior
System creates ambiguous RNA nucleotides (with Uracil) instead of DNA ones (with Thymine)

Expected behavior
System creates ambiguous DNA nucleotides (with Uracil) instead of DNA ones (with Thymine)

As per requirements:

Details

1.2. Every "antisense base" should be created following the table bellow:

Sense base	Antisense base
N (ambiguous DNA base) and N (ambiguous RNA base)	N (ambiguous DNA base)
D (ambiguous DNA base) and D (ambiguous RNA base)	H (ambiguous DNA base)
H (ambiguous DNA base) and H (ambiguous RNA base)	D (ambiguous DNA base)
W (ambiguous DNA base) and W (ambiguous RNA base)	W (ambiguous DNA base)
M (ambiguous base)	K (ambiguous DNA base)
R (ambiguous base)	Y (ambiguous DNA base)
V (ambiguous base)	B (ambiguous DNA base)

Versions

• Ketcher Version 3.2.0-rc.1 Build at 2025-03-04; 14:24:35
• Indigo Version 1.30.0-rc.1.0-g9bdedaba9-wasm32-wasm-clang-19.0.0
• Chrome Version 134.0.6998.36 (Official Build) (64-bit)
• Win10

Issue found while testing: #6383