page-training-detail-upgrade

Trigger

• User asks to improve, polish, fix, or complete route /training/detail.
• UI/UX hardening is requested for Training Detail page.

Input Context

• Route: /training/detail
• Page file: src/pages/training/detail.tsx
• Parity: UIUX-005
• Priority: P0

Read First

1. docs/status/PAGE-UPGRADE-BOARD.md
2. docs/status/SKILL-DOC-MATRIX.md
3. docs/status/PROJECT-STATUS.md
4. src/components/shared/DevMenu.tsx