Adding: doaipm — the DO AI PM method

doaipm teaches an agent how to take a product/feature idea and turn it into a real, runnable prototype — the way a product manager works in the AI era. Speak it, and AI builds it.

• Real use case: the doaipm.com site (8 languages) and a family of shipping products (SoloMD, Unterm, unfetch, StoryAlter, Unflick) were all built with this method.
• Format: standard SKILL.md with YAML frontmatter (name + description) + Markdown body.
• Cross-platform: Claude Code, Codex CLI, Cursor, Gemini CLI (adapters included).
• License: MIT. No duplicate in the list.

Placed alphabetically under Development & Code Tools (1-line addition).