Refactor code and improve test assertions

[kazeburo]

No description provided.

[Copilot]

Pull request overview

This PR refactors several core paths (worker execution, log loading, TOML defaults) and modernizes tests to make assertions clearer and to exercise concurrency behavior more reliably.

Changes:

• Extracted worker command execution-with-timeout into a helper and cleaned up category variable naming.
• Centralized TOML defaulting logic into small helper functions and expanded default fields (e.g., favicon).
• Improved tests by switching to testify/assert, adding coverage for If-Modified-Since, and refactoring the race scenario test into helper loops.

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
worker.go	Refactors per-service timeout execution into a dedicated helper called from the worker pool.
tomp_test.go	Replaces manual assertions with testify/assert for clearer test failures.
toml.go	Extracts repeated “set default if empty” logic into helper functions and applies them during TOML load.
scenario_race_test.go	Refactors concurrent scenario test into helper loops to reduce duplication.
logs.go	Refactors log initialization/status computations into smaller methods and improves naming/comment clarity.
handlers.go	Simplifies ifModifiedSince condition expression.
handlers_test.go	Adds a focused unit test for ifModifiedSince.
go.mod	Adds testify (and related transitive deps) to support new test assertions.
go.sum	Updates sums for newly added/updated module dependencies.

Comments suppressed due to low confidence (1)

toml.go:155

• stringDefault has the same nil-guard issue as markdownDefault: when s == nil the function will still dereference *s and panic. If nil pointers are not expected, drop the check; otherwise return early when s is nil.

func stringDefault(s *string, defaultValue string) {
	if s == nil || *s == "" {
		*s = defaultValue
	}
}

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud