Function select_and_render_task 

pub fn select_and_render_task(
    compiler: &ContextCompiler<'_>,
    goal: &str,
    budget: usize,
    visible: &ContextLedger,
) -> SurfaceRenderResult

The FULL production task surface pipeline (historical entry point — kept as a thin wrapper over build_surface so the traced contract and legacy callers stay stable): task PPR + novelty suppression against the ledger + the same MMR/quotas/selector/render tail.