id: CORE-002B
title: Hedge and Strategy Runtime Quote Unit Rollout
status: backlog
priority: P0
effort: M
depends_on:
  - CORE-002A
  - CORE-001B
tags:
  - core
  - units
  - hedge
  - pricing
summary: Apply explicit instrument-aware quote-unit conversions to the next visible ounce-based hedge/runtime paths so they no longer assume ounce-native spot prices.
acceptance_criteria:
  - Hedge/runtime displays that consume live or configured GLD spots use explicit share->ozt conversions where needed.
  - Visible strategy/hedge labels distinguish converted collateral spot from raw share quotes when relevant.
  - Unsupported or missing quote-unit metadata fails closed rather than silently applying raw share prices as ounce prices.
  - Tests cover the changed hedge/runtime math and browser-visible route behavior.
technical_notes:
  - Likely file targets include `app/pages/hedge.py`, `app/pages/common.py`, and any service/helpers feeding hedge summary/runtime spot values.
  - Reuse the new instrument metadata seam rather than introducing new ad hoc scale factors.
  - Keep backtesting/event share-based paths compatible while tightening visible ounce-based paths.