Agent Skills: convert-python-elixir

Convert Python code to Elixir. Use when migrating Python projects to Elixir, translating Python patterns to idiomatic Elixir, refactoring Python codebases into BEAM/OTP, or building Elixir services from Python prototypes. Extends meta-convert-dev with Python-to-Elixir specific patterns covering all 10 pillars including FFI and Dev Workflow.