🧪 Test coverage for mask_secrets

[undivisible]

🎯 What: Adds unit tests for the mask_secrets function in src/config/mod.rs, ensuring edge cases like empty strings, arrays, non-string values, and nested structures are handled correctly without modification while still properly hiding valid strings.
📊 Coverage: The new test mask_secrets_covers_objects_arrays_and_skips_empty thoroughly covers serde_json::Value::Object, serde_json::Value::Array, and wildcard (_) branches.
✨ Result: Improved test coverage and codebase reliability.

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PR created automatically by Jules for task 24631230648366902 started by @undivisible

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Note

Low Risk
Test-only change with no runtime or config behavior modifications.

Overview
Adds mask_secrets_covers_objects_arrays_and_skips_empty, a unit test that exercises mask_secrets beyond the existing config-serialization check.

The new test verifies that non-empty string values on secret-like keys (api_key, token, password, including nested objects and array elements) are replaced with ********, while empty secret strings, null, non-string values on secret keys, and ordinary fields are left unchanged.

^{Reviewed by Cursor Bugbot for commit 10fd12b. Configure here.}

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Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-05T11:04:29.392974Z	64bb4df	New commits

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