CI — feat: prefer single-word topic names + clamp future lesson timestamps Topic naming: - DEFAULT_PROFILE keys renamed to single most-characterising word (software_architecture → architecture, docker_compose merged into docker, performance_optimization → performance, linux_cli → linux, html_css → frontend, node_js → node, debugging_mindset → debugging, design_patterns → patterns, general_engineering → engineering) - SKILL.md, server.py add_topic docstring, and CLAUDE.md update...

CI — feat: prefer single-word topic names + clamp future lesson timestamps Topic naming: - DEFAULT_PROFILE keys renamed to single most-characterising word (software_architecture → architecture, docker_compose merged into docker, performance_optimization → performance, linux_cli → linux, html_css → frontend, node_js → node, debugging_mindset → debugging, design_patterns → patterns, general_engineering → engineering) - SKILL.md, server.py add_topic docstring, and CLAUDE.md update... #103