v0.1.1 — Graceful single-file install

• Graceful degradation when installed as a single SKILL.md (directory quick-installs): core principles, routing, and hard gates still apply; points users to the full install.
• v0.1.0: initial release — SKILL.md + 10 references + 5 scripts + templates, plugin & self-hosted marketplace, bilingual README. Cold-start validated (see docs/evaluation.md).