Plumb source locations through classic CLVM evaluation

[prozacchiwawa]

Summary

• dispatch classic compile-time CLVM evaluation through ClassicAllocator
• use compiler::clvm::run for SExpClassicAllocator while retaining the existing clvmr-backed TRunProgram path for raw allocators
• preserve the public TRunProgram interface and use it as the fallback dialect for non-core operators
• route constant folding, delayed constants, and symbol evaluation through the allocator-selected runner
• verify that location-aware evaluation preserves distinct result and child spans

Testing

• cargo test located_allocator_runs_core_clvm_without_losing_result_locations
• cargo test -- --skip compile_performance_suite

The unfiltered debug test run reached the pre-existing compile_performance_suite after all other library tests passed; that performance test was stopped after more than 22 minutes of sustained CPU usage and was excluded from the completed regression run.