fix(server): clear cell index state during nuke

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

Author: shisoft

HTTP_API.md

@@ -87,7 +87,8 @@ Response:
     "scanned_schemas": 12,
     "removed_vertices": 120,
     "removed_cells": 842,
-    "removed_schemas": 0
+    "removed_schemas": 0,
+    "cleared_cell_index_entries": 962
   }
 }
 ```

crates/morpheus-http-client/src/types.rs

@@ -12,6 +12,7 @@ pub struct NukeResult {
     pub removed_vertices: usize,
     pub removed_cells: usize,
     pub removed_schemas: usize,
+    pub cleared_cell_index_entries: usize,
 }
 
 #[derive(Debug, Deserialize, Serialize)]

crates/morpheus-http-client/tests/http_gateway_e2e.rs

@@ -549,6 +549,7 @@ async fn http_gateway_client_full_e2e() {
     let nuke = client.nuke().await.expect("admin nuke").data;
     assert!(nuke.scanned_schemas > 0);
     assert_eq!(nuke.removed_schemas, 0);
+    assert!(nuke.cleared_cell_index_entries >= nuke.removed_cells);
 
     let schema_nuke = client.nuke_schema().await.expect("admin nuke schema").data;
     assert!(schema_nuke.scanned_schemas > 0);

src/server/mod.rs

@@ -19,6 +19,7 @@ use crate::server::schema::GraphSchema;
 use crate::server::schema::SchemaContainer;
 use crate::traversal::compute::ComputeService;
 use crate::traversal::expand::distributed::ExpandService;
+use neb::index::builder::IndexBuilder;
 use neb::ram::cell::WriteError;
 use neb::ram::schema::DelSchemaError;
 use neb::ram::types::Id;
@@ -71,6 +72,7 @@ pub struct NukeResult {
     pub removed_vertices: usize,
     pub removed_cells: usize,
     pub removed_schemas: usize,
+    pub cleared_cell_index_entries: usize,
 }
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
@@ -437,11 +439,18 @@ impl MorpheusServer {
             }
         }
 
+        if self.neb_server.indexer.is_some() {
+            let _ = IndexBuilder::await_all_indices().await;
+        }
+
+        let cleared_cell_index_entries = self.neb_server.chunks.clear_cell_index();
+
         Ok(NukeResult {
             scanned_schemas: schemas.len(),
             removed_vertices,
             removed_cells,
             removed_schemas: 0,
+            cleared_cell_index_entries,
         })
     }