[andrewDoing]

Even though I use a subscription for agents, I think its interesting to see how much my usage would've cost if I was paying API prices for tokens. So that's the spirit of this PR.

The Agents panel now shows the API-equivalent total beside a compact Tokens/Dollars toggle. Dollar mode reuses the existing per-model rows, so the panel keeps its current size and layout. Published standard rates cover the currently supported OpenAI, Anthropic, and named Fireworks serverless models; unknown and private model IDs remain visibly unpriced.

Screenshot

Validation

• bash test/shell.d/agents-api-cost-test.sh
• bash test/shell.d/agents-panel-test.sh
• bash test/shell.d/qml-text-format-test.sh
• git diff --check
• Restarted the linked development shell and visually checked both token and dollar views

[jandrusk]

Fun optional view — product call on whether core Agents panel should show API-equivalent dollars (rate drift / private models). CONFLICTING; rebase against current agents panel and the other usage PRs (#10911 orphans, #13198 freshness).