feat(summary-maintenance): define lifecycle alternatives

crates/asap-aware-mapping/src/cost_model.rs

@@ -63,6 +63,7 @@ use crate::replacement::{
     realize_child, Implementation, Replacement, ReplacementProvenance, ReplacementSubDAG,
     TargetSubDAG,
 };
+use crate::summary_maintenance_lifecycle::SummaryMaintenanceLifecycleCostInputs;
 
 /// A CSE-detected, legality-gated shared subtree with two or more consumers
 /// — the unit [`CostModel::cse_share_decision`] decides over. Built by
@@ -504,6 +505,17 @@ pub trait CostModel {
         let _ = (candidate, target);
         f64::NAN
     }
+
+    /// Primitive build, update, read, retention, and retirement costs used to
+    /// compare physical summary-state lifecycles. Unknown values stay
+    /// unknown, preventing long-lived deployments from winning through
+    /// optimistic zeroes.
+    fn summary_maintenance_lifecycle_cost_inputs(
+        &self,
+        _summary: &SummaryNode,
+    ) -> SummaryMaintenanceLifecycleCostInputs {
+        SummaryMaintenanceLifecycleCostInputs::default()
+    }
 }
 
 fn sketch_state(

crates/asap-aware-mapping/src/lib.rs

@@ -190,12 +190,13 @@ pub mod recurrence;
 pub mod replacement;
 pub mod rewrite;
 pub mod rollup;
+pub mod summary_maintenance_lifecycle;
 pub mod topk_reuse;
 
 pub use accuracy::{
     AccuracyAllocation, AccuracyBudgetAllocator, AccuracyEvidenceProvider, AccuracyModel,
     CompositionShape, DefaultAccuracyModel, EqualSplitAllocator, NoAccuracyEvidence,
-    PropagationStats,
+    PropagationStats, WorkloadAccuracyEvidence,
 };
 pub use accuracy_reconciliation::AccuracyReconciliationStrategy;
 pub use cost_model::{CostModel, DefaultCostModel};
@@ -217,4 +218,10 @@ pub use replacement::{
     MAX_SEARCH_ITERATIONS,
 };
 pub use rewrite::AvgToSumOverCountStrategy;
+pub use summary_maintenance_lifecycle::{
+    plan_summary_maintenance_lifecycles, SummaryMaintenanceDeployment,
+    SummaryMaintenanceLifecycleAlternative, SummaryMaintenanceLifecycleCapabilities,
+    SummaryMaintenanceLifecycleCostInputs, SummaryMaintenanceLifecyclePlan,
+    SummaryMaintenanceLifecyclePlanError, SummaryMaintenanceLifecycleRejection,
+};
 pub use topk_reuse::TopKLimitReuseStrategy;

crates/asap-aware-mapping/src/replacement.rs

@@ -375,8 +375,7 @@ use crate::accuracy_reconciliation::AccuracyReconciliationStrategy;
 use crate::cost_model::{CostModel, CseCandidate, DefaultCostModel, ShareDecision};
 use crate::grouping::HydraGroupingStrategy;
 use crate::recurrence::{
-    evaluation_rate_of, CostRate, Horizon, RecurrenceError, RecurrenceProfile, RootRecurrence,
-    UpdateRate,
+    evaluation_rate_of, Horizon, RecurrenceError, RecurrenceProfile, RootRecurrence, UpdateRate,
 };
 use crate::rollup::RollupStrategy;
 use crate::topk_reuse::TopKLimitReuseStrategy;