v1.1.0 — Dual-Track Learning 🛤️

🛤️ Dual-track learning & community files

Added

• 🛤️ Dual-track learning paths (Developer 🧑‍💻 and Non-Developer 🎨)
• 🤝 CONTRIBUTING.md with local development setup guide
• 📜 CODE_OF_CONDUCT.md (Contributor Covenant v2.1)
• �� TESTING.md with conversation playbooks and QA checklist
• 📋 Issue templates (bug report, feature request, lesson idea)
• 📝 Pull request template
• 🔄 "Reset tutorial" support
• 📖 CLI glossary for non-technical users
• ⚡ Concise Q&A mode for direct technical questions
• 🛡️ Failure handling for offline docs, SQL errors, unclear intent

Changed

• 📦 Lesson 1 refactored from "install" to "verify & explore"
• 📚 SKILL.md consolidated to single source of truth
• 📋 PRD updated with dual-track mermaid diagrams
• 📖 README updated with dual-track lesson tables and architecture diagram