Fix model pricing refresh without PowerToys integration

[Finesssee]

Maintainer replacement for #442 because the original head is in an external fork. Tree is the reviewed #442 implementation unchanged.\r\n\r\nSupersedes #442.\r\n

Summary by CodeRabbit

• Bug Fixes
  • Local usage information now reflects enabled Codex and Claude providers directly.
  • Unsupported or disabled providers are excluded from usage reporting.
  • Usage reporting now behaves consistently even when PowerToys status is disabled.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Team

Run ID: 2694b895-c337-4b8e-a9b2-9c3f0d2b1f0a

📥 Commits

Reviewing files that changed from the base of the PR and between 1e3d04c and b24b123.

📒 Files selected for processing (1)

• apps/desktop-tauri/src-tauri/src/auto_refresh.rs

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📝 Walkthrough

Walkthrough

Local usage enrichment now selects enabled Codex and Claude providers directly. PowerToys status-pipe availability no longer controls enrichment. Tests cover disabled PowerToys integration and supported-provider filtering.

Changes

Local usage enrichment

Layer / File(s)	Summary
Provider selection and refresh scheduling apps/desktop-tauri/src-tauri/src/auto_refresh.rs	The provider helper uses integration-independent naming. Refresh scheduling runs without the PowerToys status pipe. Tests cover Codex enrichment with PowerToys disabled and filter providers by support and enabled state.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to b24b1

Local pricing refresh now works when PowerToys integration is disabled while continuing to refresh only enabled Codex and Claude providers. The covered behavior introduces no identified merge-blocking risk.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 6 functions across 1 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly describes the main change: fixing model pricing refresh when PowerToys integration is unavailable. It matches the stated objectives and the implementation changes.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches 💡 1

📝 Generate docstrings 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch maint/pr442-pricing

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