Warning: This build has drifted.
The coverage report for this pull request build may be inaccurate because its base commit is no longer the HEAD of its target branch.
This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

    • Learn more: For more information on this, see Tracking coverage changes for pull request builds.
    • Fix now: For a quick fix, rebase this PR at GitHub. Your next report should be accurate.
    • Prevent going forward: To avoid this issue with future PRs, see these Recommended CI Configurations.

fix(playground): address Copilot review feedback on chat cost

- useModelPricing now only enables its React Query fetch when a remote
  provider+model pair is known (skips ollama/lmstudio and the empty
  state). Avoids a no-op IPC + models.dev fetch for local-only users.
- Inline cost rendering no longer strips the dollar sign from the
  formatter output. The "<$0.01" case now reads correctly inline
  instead of "<0.01".
- Add unit tests for the main-process pricing module: cold-start
  fetch + write, warm disk cache within TTL, stale cache returns
  immediately + background refresh, offline with no disk cache, and
  non-OK upstream response.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>