Add pyxel recipe for emscripten-forge

recipes/recipes_emscripten/pyxel/build.sh

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+#!/bin/bash
+
+set -euo pipefail
+
+# Build SDL2 for emscripten (required by pyxel)
+embuilder build sdl2 --pic
+
+# Set environment variables for maturin and emscripten
+export MATURIN_PYTHON_SYSCONFIGDATA_DIR=${PREFIX}/etc/conda/_sysconfigdata__emscripten_wasm32-emscripten.py
+export PYO3_USE_ABI3_FORWARD_COMPATIBILITY=1
+
+# Change to the Python subdirectory where pyproject.toml is located
+cd python
+
+# Copy LICENSE file
+cp ../LICENSE pyxel/
+
+# Install using pip (which will use maturin via pyproject.toml)
+${PYTHON} -m pip install . -vvv

recipes/recipes_emscripten/pyxel/recipe.yaml

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+context:
+  name: pyxel
+  version: "2.5.4"
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+
+source:
+  url: https://github.com/kitao/pyxel/archive/refs/tags/v${{ version }}.tar.gz
+  sha256: da328a30f76dae5f9df0130ae746248f8ef23efba6f3a5e5429df34ba81c345a
+
+build:
+  number: 0
+
+requirements:
+  build:
+    - cross-python_${{ target_platform }}
+    - ${{ compiler("c") }}
+    - setuptools-rust
+    - rust
+    - rust-src
+    - maturin
+  host:
+    - python
+    - openssl
+  run:
+    - python
+
+tests:
+- script: pytester
+  requirements:
+    build:
+      - pytester
+    run:
+      - pytester-run
+  files:
+    recipe:
+      - test_import_pyxel.py
+
+about:
+  summary: A retro game engine for Python
+  description: |
+    Pyxel is a retro game engine for Python. Thanks to its simple specifications 
+    inspired by retro gaming consoles, such as only 16 colors can be displayed 
+    and only 4 sounds can be played back at the same time, you can feel free to 
+    enjoy making pixel art style games.
+  homepage: https://github.com/kitao/pyxel
+  license: MIT
+  license_file: LICENSE
+  repository: https://github.com/kitao/pyxel
+  documentation: https://github.com/kitao/pyxel
+
+extra:
+  recipe-maintainers:
+    - Copilot

recipes/recipes_emscripten/pyxel/test_import_pyxel.py

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+def test_import_pyxel():
+    """Test that pyxel can be imported successfully."""
+    import pyxel
+    print("pyxel import successful")
+
+
+def test_pyxel_version():
+    """Test that pyxel version is accessible."""
+    import pyxel
+    print(f"pyxel version: {pyxel.__version__}")
+
+
+def test_pyxel_basic_attributes():
+    """Test that basic pyxel attributes are available."""
+    import pyxel
+
+    # Try to access some basic pyxel attributes
+    assert hasattr(pyxel, 'init'), "pyxel.init not found"
+    assert hasattr(pyxel, 'run'), "pyxel.run not found" 
+    assert hasattr(pyxel, 'cls'), "pyxel.cls not found"
+
+    print("All basic pyxel imports and attributes are available")