chore(main): release 0.15.0

[hugrbot]

🤖 I have created a release beep boop

0.15.0 (2025-02-07)

⚠ BREAKING CHANGES

• classical arrays can no longer be implicitly copied
• pytket circuits no longer supported by py expressions (use @pytket or load_pytket instead)

Features

• add panic builtin function (#757) (4ae3032)
• Add array copy method (#784) (15bae6e)
• add boolean xor support (#747) (7fa4c8d), closes #750
• Add CH gate to the stdlib (#793) (1199a14), closes #792
• Add string type (#733) (aa9341b)
• Array subscript assignment for classical arrays (#776) (6880e11)
• Make True and False branches unconditional (#740) (748ea95)
• Refactor to support affine arrays (#768) (92ec6d1)
• Remove circuits from py expressions (#746) (ee8926b)
• support integer exponentiation in guppy source (#753) (70c8fcf)

Bug Fixes

• Allow string py expressions in result and panic (#759) (53401cc)
• Fix error printing for structs defined in notebooks (#777) (b41e0fc)
• Fix pytest hanging (#754) (9ad02bb)
• panic on negative exponent in ipow (#758) (821771a)
• Properly report errors for unsupported subscript assignments (#738) (8afa2a9), closes #736
• remove newlines in extension description (#762) (2f5eed3)

Documentation

• remove broken link in README (#801) (fb1c3b5)

---

This PR was generated with Release Please. See documentation.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.99%. Comparing base (fb1c3b5) to head (5ae2230).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #744   +/-   ##
=======================================
  Coverage   92.99%   92.99%           
=======================================
  Files          71       71           
  Lines        8410     8410           
=======================================
  Hits         7821     7821           
  Misses        589      589           

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