Summary

Create a complete user-facing documentation set for Design Thinking in docs/design-thinking/,
mirroring the RPI documentation model. HVE Core has 57 DT artifacts (42 instructions, 13 prompts,
2 agents) but zero user-facing documentation.

Scope

New Files (16)

P0 — Core (4 files):

• docs/design-thinking/README.md — Entry point and overview (concept)
• docs/design-thinking/why-design-thinking.md — Value proposition (concept)
• docs/design-thinking/dt-coach.md — Agent usage guide (tutorial)
• docs/design-thinking/dt-rpi-integration.md — Integration guide (how-to)

P1 — Method Guides (9 files):

• docs/design-thinking/method-01-scope-conversations.md through method-09-iteration-at-scale.md

P1 — Additional (3 files):

• docs/design-thinking/dt-learning-tutor.md — Learning agent guide (tutorial)
• docs/design-thinking/using-together.md — End-to-end walkthrough (tutorial)
• docs/hve-guide/roles/ux-designer.md — UX Designer role guide (tutorial)

Updated Files (6)

• docs/README.md — Add DT section + UX Designer role
• docs/agents/README.md — Add DT agent group
• docs/hve-guide/lifecycle/discovery.md — Add dt-coach to tools table
• docs/hve-guide/roles/tpm.md — Add dt-coach references
• docs/hve-guide/roles/business-program-manager.md — Add dt-coach references
• docs/getting-started/README.md — Optional DT path (P2)