Better type annotations

[dweindl]

• Use unquoted types in type annotations. Fix some incorrect annotations.
• Replace ast.Str, removed in Python 3.14

[codecov]

Codecov Report

❌ Patch coverage is 0% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 75.78%. Comparing base (a666ef9) to head (82df159).
⚠️ Report is 111 commits behind head on main.

Files with missing lines	Patch %	Lines
python/sdist/amici/swig.py	0.00%	8 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2981      +/-   ##
==========================================
- Coverage   76.51%   75.78%   -0.73%     
==========================================
  Files         307      307              
  Lines       19992    19997       +5     
  Branches     1500     1500              
==========================================
- Hits        15296    15154     -142     
- Misses       4683     4830     +147     
  Partials       13       13              

Flag	Coverage Δ
cpp	71.95% <0.00%> (-0.06%)	⬇️
cpp_python	38.20% <0.00%> (-0.01%)	⬇️
petab	39.26% <0.00%> (-0.02%)	⬇️
python	69.52% <0.00%> (-0.05%)	⬇️
sbmlsuite-jax	?

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
python/sdist/amici/swig.py	0.00% <0.00%> (ø)

... and 8 files with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.