Test/GitHub quota monitor resilience

[pari7maheshwari]

Description

Fixes #2928

Adds a new test file services/github/quota-monitor.error-resilience.test.ts with 5 test cases targeting Hydration Stability, Exception Safety, and Error Fallbacks for the QuotaMonitor service. Tests verify that unexpected runtime exceptions and corrupted state never crash the application, that exceptions are logged to telemetry, and that a clean reset/reload path is always available.

Pillar

• 🎨 Pillar 1 — New Theme Design
• 📐 Pillar 2 — Geometric SVG Improvement
• 🕐 Pillar 3 — Timezone Logic Optimization
• 🛠️ Other (Bug fix, refactoring, docs)

Visual Preview

N/A — test file only, no UI changes.

Checklist

• I have read the CONTRIBUTING.md file.
• I have tested these changes locally (localhost:3000/api/streak?user=YOUR_USERNAME).
• I have run npm run format and npm run lint locally and resolved all errors (CI will fail otherwise).
• My commits follow the Conventional Commits format (e.g., test(quota-monitor): add error resilience tests).
• I have updated README.md if I added a new theme or URL parameter. (not applicable)
• I have started the repo.
• I have made sure that I have only one commit to merge in this PR.
• The SVG output matches the CommitPulse "premium quality" aesthetic standard. (not applicable — test file only)
• (Recommended) I joined the CommitPulse Discord community for contributor discussions, mentorship, and faster PR support.

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