Forward VectorInterface in-place ops to name-aware TensorAlgebra methods

[mtfishman]

Summary

Implements the full VectorInterface for named tensors and routes its in-place operations through name-aware TensorAlgebra methods instead of self-aliasing broadcasts. scale!/add! forward to TensorAlgebra.scale!/TensorAlgebra.add!, which unname and align the operands by name (reusing the unnamed(x, dimnames(y)) view, which carries a tuple permutation) before dispatching to the backend array's block-wise in-place method. This fixes silent corruption when a block-sparse backend drives an iterative solver: the previous @. y = y*β + x*α put the destination on the right-hand side, and a graded copyto! ran the y*β term as a self-aliased permute-add that zeroed y before reading it. The out-of-place and !! variants allocate the promoted scalar type, so scaling a real tensor by a complex coefficient widens to a complex result.

inner forwards to LinearAlgebra.dot (previously a duplicate of the same (conj(x)*y)[]), and _permuteddims_to drops its AbstractArray restriction so the by-name alignment view also works for a TensorMap backend.

The methods are defined as qualified VectorInterface. overloads, so ITensorBase no longer imports the VectorInterface function names into its namespace or re-exports them.

Builds on ITensor/TensorAlgebra.jl#207, which adds the TensorMap TensorAlgebra.scale!/add!/zero! methods this forwarding lands on.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 76.10%. Comparing base (4b6e859) to head (cd6fa99).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #217      +/-   ##
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+ Coverage   76.00%   76.10%   +0.09%     
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  Files          30       30              
  Lines        1684     1691       +7     
==========================================
+ Hits         1280     1287       +7     
  Misses        404      404              

Flag	Coverage Δ
docs	26.06% <0.00%> (-0.12%)	⬇️

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