Add conditional INT/FLOAT ops, choose nodes, and fix BOOLEAN socket types

[dnnagy]

This PR adds a set of control/math utility nodes that make it easier to build graphs with optional/gated arithmetic.

Changes

• Conditional unary/binary ops for FLOAT
  • CM_FloatUnaryOperationConditional
  • CM_FloatBinaryOperationConditional
  • Inputs: condition: BOOLEAN, operands, plus fallback_mode and fallback_value
• Conditional unary/binary ops for INT
  • CM_IntUnaryOperationConditional
  • CM_IntBinaryOperationConditional
  • Same behavior as float nodes
• Choose (mux) nodes
  • CM_ChooseInt, CM_ChooseFloat
  • Output a if condition else b
• Fix: boolean socket compatibility
  • Standardize condition node outputs from ("BOOL",) to ("BOOLEAN",) so they can connect into BOOLEAN inputs reliably (e.g. into the new conditional-op nodes).

Files touched

• src/comfymath/float.py
• src/comfymath/int.py
• src/comfymath/control.py
• src/comfymath/number.py
• src/comfymath/vec.py