feat(vgr): hand off escalated agentic runs

crates/libsy/src/algorithms/vgr.rs

@@ -22,6 +22,7 @@ use crate::algorithms::util::affinity::AffinityRouter;
 use crate::core::algorithm::{Algorithm, Driver, RoutingOutcome};
 use crate::core::state::State;
 
+mod compaction;
 mod config;
 mod decide;
 mod readout;
@@ -57,12 +58,17 @@ impl Vgr {
                 .with_release_on_user_turn()
                 .with_latch_only([cloud.clone()]),
         );
+        let mut route = FallThrough::new_with_state().with_name("vgr");
+        if config.compact_handoff {
+            // First, so every later classifier and the served call see the
+            // condensed history.
+            route = route.with_classifier(Arc::new(compaction::Compactor));
+        }
         let classifier = Arc::new(runtime::VgrClassifier {
             breaker: safety::CircuitBreaker::new(config.breaker),
             config,
         });
-        let route = FallThrough::new_with_state()
-            .with_name("vgr")
+        let route = route
             .with_processor(turn_affinity.clone())
             .with_classifier(turn_affinity)
             .with_classifier(classifier);