Inventory & Coverage opens RI Exchange by default; should default to Active Commitments #751

Symptom

Clicking "Inventory & Coverage" in the sidebar opens the RI Exchange sub-tab by default. It should open the Active Commitments sub-tab first.

Why it's a bug

Active Commitments is the at-a-glance view most users want when opening Inventory & Coverage. RI Exchange is a more specialized workflow and shouldn't be the landing tab.

Acceptance criteria

• Navigating to /inventory (or whatever the route is) lands on Active Commitments by default.
• The tab order in the UI also reflects Active Commitments first.
• Deep links to specific sub-tabs (e.g. /inventory?tab=ri-exchange) still work.

Files likely involved

• frontend/src/modules/inventory.ts or frontend/src/inventory.ts (default sub-tab + tab order)
• Any router config that controls deep-link defaults.

Source

QA exploratory testing, 2026-05-27.