v1.4.14

• Add Sememolution population-based KG evolution module (kg_population.py) with GeneticEvolver integration, Poisson-sampled search traversal, per-individual graph state, crossover with graph merging, and LLM-judged response ranking
• Add memory extraction pipeline and sememolution documentation to knowledge-graphs guide
• Add MLX Apple Silicon documentation to fine-tuning guide
• Add KG, memory, sememolution, and fine-tuning examples to README
• Remove dead shell=True subprocess fallback in _tool_web_search (closes #207)
• Fix _tool_file_search to use list-form subprocess without shell=True