development-pipelinelisted

## Overview A 6-phase development pipeline that orchestrates existing etk skills into a structured process: **Gate → Design → Hypothesize → Plan → Build → Verify**. Each phase delegates to specialized skills and includes human checkpoints for approval. ### Pipeline Flow ``` /develop "task description" │ Phase 0: GATE ─────── Blocks if >3 critical unknowns │ Phase 1: DESIGN ───── Brainstorming skill (simple or deep) │ Human checkpoint: approve design │ Phase 2: HYPOTHESIZE ─ State assumptions, risks, success criteria │ Human checkpoint: approve hypotheses │ Phase 3: PLAN ──────── Quality gates + task breakdown + test strategy │ Human checkpoint: approve plan │ Phase 4: BUILD ─────── TDD implementation per task │ Human checkpoint: review changes │ Phase 5: VERIFY ────── Evidence collection + quality checks │ Human checkpoint: approve for merge │ DONE ─── Summary + optional MR ``` ## Mode Detection Detect mode from explicit flag or context. Explicit flag in arguments takes priority. | Signal | Mode | |--------|------| | `greenfield` flag or no existing code referenced | `greenfield` | | `brownfield` flag or modifying existing files | `brownfield` | | `bugfix` flag or mentions "bug", "fix", "broken", "error" | `bugfix` | | `refactor` flag or mentions "refactor", "clean up", "reorganize" | `refactor` | **Bugfix abbreviated pipeline**: Skip P