[junkmd]

Related to #80 and #347

Summary

This PR adds a native COM test server and Python tests for explicitly typed string SAFEARRAYs passed inside VARIANTs.

The tests cover conversions between SAFEARRAY(VARIANT) and SAFEARRAY(BSTR), repetition of both array types, arrays created with create and from_param, and DISP_E_TYPEMISMATCH for incorrect element types
The new test server is registered in the IDL, class factory, and build files.

The PR does not change the default conversion of list[str] or tuple[str, ...].

Scope and design decision

This PR does not change the default conversion of list[str] or tuple[str, ...].

Normal Python string arrays continue to be represented as SAFEARRAY(VARIANT). Changing the default to SAFEARRAY(BSTR) would break existing Excel tests and change the array type received by COM servers, so backward compatibility takes priority.

Some COM servers accept VARIANT(BSTR) but reject VARIANT(VARIANT(BSTR)).
For those servers, callers can explicitly create and pass a SAFEARRAY(BSTR).
The tests in this PR verify that this explicit typed-array approach works without changing existing defaults.

Expected outcome

COM servers that require SAFEARRAY(BSTR) can be supported by explicitly specifying that type, while existing Excel compatibility and normal Python string-array behavior remain unchanged.
A future public helper can improve usability without changing this compatibility policy.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 97.40260% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.21%. Comparing base (b91b041) to head (8200a77).

Files with missing lines	Patch %	Lines
...types/test/test_string_safearray_inside_variant.py	97.40%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #964      +/-   ##
==========================================
+ Coverage   89.16%   89.21%   +0.04%     
==========================================
  Files         141      142       +1     
  Lines       13793    13870      +77     
==========================================
+ Hits        12299    12374      +75     
- Misses       1494     1496       +2     

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