Add lakers-python recipe for emscripten-forge

Co-authored-by: DerThorsten <904752+DerThorsten@users.noreply.github.com>

Author: 2 people

recipes/recipes_emscripten/lakers-python/build.sh

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+#!/bin/bash
+
+export MATURIN_PYTHON_SYSCONFIGDATA_DIR=${PREFIX}/etc/conda/_sysconfigdata__emscripten_wasm32-emscripten.py
+${PYTHON} -m pip install . -vvv

recipes/recipes_emscripten/lakers-python/recipe.yaml

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+context:
+  name: lakers-python
+  version: 0.5.0
+
+package:
+  name: ${{ name }}
+  version: ${{ version }}
+
+source:
+- url: https://pypi.io/packages/source/l/lakers-python/lakers_python-${{ version }}.tar.gz
+  sha256: 19059fde5572409f061c3dfcaa12f1634572ff3622b45f81853d05bb67a37bc5
+
+build:
+  number: 0
+
+requirements:
+  build:
+  - cross-python_${{ target_platform }}
+  - cffi == 1.17.1
+  - setuptools-rust
+  - rust
+  - maturin
+  host:
+  - python
+  - cffi == 1.17.1
+  run:
+  - cffi == 1.17.1
+
+tests:
+- script: pytester
+  requirements:
+    build:
+    - pytester
+    run:
+    - pytester-run
+  files:
+    recipe:
+    - test_import_lakers.py
+
+about:
+  summary: Python wrapper for the lakers crate (EDHOC implementation in Rust)
+  license: BSD-3-Clause
+  license_file: LICENSE
+  homepage: https://github.com/openwsn-berkeley/lakers/
+  repository: https://github.com/openwsn-berkeley/lakers/
+  documentation: https://github.com/openwsn-berkeley/lakers/

recipes/recipes_emscripten/lakers-python/test_import_lakers.py

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+def test_lakers_import():
+    """Test that lakers package can be imported successfully."""
+    import lakers
+    
+    # Test basic import and availability of key functions
+    assert hasattr(lakers, 'EdhocInitiator'), "EdhocInitiator should be available"
+    assert hasattr(lakers, 'p256_generate_key_pair'), "p256_generate_key_pair should be available"
+    
+    # Test basic functionality
+    # Generate a keypair 
+    key_pair = lakers.p256_generate_key_pair()
+    assert key_pair is not None, "Key pair generation should work"
+    
+    # Instantiate an initiator
+    initiator = lakers.EdhocInitiator()
+    assert initiator is not None, "EdhocInitiator should be instantiable"
+    
+    print("lakers-python import and basic functionality test passed")