[mtfishman]

Summary

Adds conjed(a), a lazy conjugate (ConjArray) that permutation, matricization and contraction absorb by folding conj into their op, so a conjugated operand is never materialized. Other whole-array operations go through the parent, and scalar indexing errors rather than looping over elements.

[codecov]

Codecov Report

❌ Patch coverage is 88.04348% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.42%. Comparing base (f25bff9) to head (7d1980e).

Files with missing lines	Patch %	Lines
src/conjarray.jl	83.05%	10 Missing ⚠️
src/contract/allocate_output.jl	96.15%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #245      +/-   ##
==========================================
- Coverage   83.93%   80.42%   -3.52%     
==========================================
  Files          31       31              
  Lines         971     1042      +71     
==========================================
+ Hits          815      838      +23     
- Misses        156      204      +48     

Flag	Coverage Δ
docs	24.60% <28.88%> (-1.04%)	⬇️

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