Fix user warnings

[ShreyasN707]

Summary

This PR removes several noisy warnings (UserWarning + one DeprecationWarning) from tests/examples and adds regression tests to prevent them from returning. The changes improve determinism, clean test output, and stabilize CI.

Issue:#2904

Bug / Issue

The test suite emitted:

• RNG warnings: Spaces (OrthogonalMooreGrid, Network, VoronoiGrid) created without an explicit RNG → non-deterministic tests.
• PropertyLayer warnings: default_val=0 used with dtype=np.float64.
• Portrayal warnings: Deprecated keys s, c, linecolors ignored by the matplotlib backend.
• Deprecated import in test_components_matplotlib.py.
• Playwright-dependent test failed when Playwright wasn't installed.

Implementation

• Added seeded random.Random(42) to all grid/network/voronoi instantiations in tests/examples.
• Updated PropertyLayer defaults to 0.0 or np.float64(0) when dtype is float.
• Updated portrayal dicts to use size, color, edgecolors and added minimal normalization in the matplotlib backend.
• Fixed deprecated import and added a skip guard for Playwright in test_examples_viz.py.

Testing

• Added regression tests:
  • RNG determinism
  • PropertyLayer dtype
  • Portrayal key normalization
  • No-RNG-warning check
• Verified pytest -q passes and warnings are gone.
• Playwright tests now skip gracefully if not installed.
• Pre-commit and Codecov thresholds remain satisfied.

Additional Notes

• No public API behavior was changed.
• Normalization helper is temporary and isolated.
• Changes are split into small commits for safe review.

[github-actions]

Performance benchmarks:

Model	Size	Init time [95% CI]	Run time [95% CI]
BoltzmannWealth	small	🔵 +2.3% [+1.2%, +3.3%]	🔵 +1.7% [+1.5%, +1.8%]
BoltzmannWealth	large	🔵 -0.0% [-0.4%, +0.4%]	🔵 +1.6% [+0.7%, +2.4%]
Schelling	small	🔵 -0.9% [-1.0%, -0.7%]	🔵 -1.3% [-1.5%, -1.2%]
Schelling	large	🔵 -1.0% [-1.4%, -0.6%]	🔵 -1.4% [-2.1%, -0.7%]
WolfSheep	small	🔵 -1.2% [-1.5%, -0.9%]	🔵 -1.4% [-1.5%, -1.3%]
WolfSheep	large	🔵 -1.1% [-1.8%, -0.4%]	🔵 -2.1% [-2.6%, -1.6%]
BoidFlockers	small	🔵 -1.2% [-1.8%, -0.7%]	🔵 -1.3% [-1.5%, -1.1%]
BoidFlockers	large	🔵 -0.5% [-0.7%, -0.3%]	🔵 -0.3% [-0.6%, -0.1%]

[EwoutH]

While I do appreciate your effort, I thought I specifically requested one kind of warning at the time. That’s (also) to keep stuff reviewable for us. Both in size, as in scope (different reviewers have different expertises).

Could you open smaller, atomic PR’s that treats one kind of warning each? Especially split the visualization stuff from the RNG stuff.

[EwoutH]

Try not to include these kind of files

[ShreyasN707]

Ok @EwoutH I will

[ShreyasN707]

@EwoutH Please review my PR.

[EwoutH]

Unfortunately you’re still doing multiple things at the same time.

Maybe it’s easier to split off some of the original commits to a new branch, and open a new PR?

[ShreyasN707]

Unfortunately you’re still doing multiple things at the same time.

Maybe it’s easier to split off some of the original commits to a new branch, and open a new PR?

Okay sure i will fix the copy in my local machine and raise a new PR regarding the issue 2.1.