muttest 0.2.0: More Mutators, Better Reporting, and Parallel Execution

muttest 0.2.0 is a new release of the R mutation testing package that significantly expands its capabilities. Key additions include a larger mutator library with 12+ new individual mutators (boolean_literal, negate_condition, numeric_increment, delete_statement, etc.) and preset collections for common patterns. The reporter now surfaces survived mutants directly in output, making it easier to identify test gaps. Parallel execution via {mirai} reduces run time on larger codebases, and per-mutant timeouts prevent infinite loops from stalling runs. The release also explains why mutation testing catches bugs that 100% code coverage misses, and notes its value for validating LLM-generated tests.