Keep prepared search readers warm and verify abrupt indexing recovery

crates/searchi-service/src/lib.rs

@@ -1,6 +1,8 @@
 //! Shared offline hybrid search using real Google embeddings and persisted,
 //! filtered HNSW retrieval. Production-scale validation remains a release gate.
 mod media;
+mod prepared;
+pub use prepared::PreparedGraphs;
 mod pipeline;
 mod routing;
 pub use routing::SemanticOrigin;
@@ -172,6 +174,11 @@ pub struct HybridSearch {
 }
 
 impl HybridSearch {
+    /// Connect background publication to an existing warmed reader.
+    pub fn share_prepared_graphs(&mut self, graphs: &PreparedGraphs) -> Result<()> {
+        self.store.share_prepared_graphs(graphs)
+    }
+
     /// Actual model/runtime/device reported by the persistent native worker.
     pub fn worker_info(&self) -> Option<searchi_semantic::WorkerInfo> {
         self.embedder.worker_info()