Tracer option for debug trace RPC calls

[usmansaleem]

PR description

Necessary code modifications to support #8326

Fixed Issue(s)

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Locally, you can run these tests to catch failures early:

• spotless: ./gradlew spotlessApply
• unit tests: ./gradlew build
• acceptance tests: ./gradlew acceptanceTest
• integration tests: ./gradlew integrationTest
• reference tests: ./gradlew ethereum:referenceTests:referenceTests

[Copilot]

Copilot reviewed 36 out of 36 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (1)

ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/processor/TransactionTracer.java:167

• [nitpick] Although the short-circuit evaluation ensures safety, consider adding a clarifying comment that explains the assumption that options.config() is always a StructLogTracerConfig when options.tracerType() is DEFAULT_TRACER for improved readability and future maintainability.

private boolean isDefaultTracerAndMemoryEnabled(final TraceOptions<? extends TracerConfig> options) {

[Copilot]

Consider adding explicit null and invalid-value validation for the 'tracer' property prior to calling TracerType.fromString to prevent potential NullPointerException or misconfiguration. For example, if 'tracer' is null, return a sensible default or throw a descriptive error.

Suggested change

	// TODO: Validate how does invalid tracer name is handled
	var tracerType = TracerType.fromString(tracer());
	// Validate tracer property
	String tracerValue = tracer();
	if (tracerValue == null) {
	throw new IllegalArgumentException("Tracer property cannot be null");
	}
	var tracerType = TracerType.fromString(tracerValue);