Getting ready for the final test

substrate/src/world/mod.rs

@@ -4,7 +4,7 @@
 //! ```text
 //!   components.rs   ── per-sensor components + per-type threshold table
 //!   resources.rs    ── SensorRegistry, DiagnosticsState, ExportSampleState
-//!   systems.rs      ── ingest / fault_injection / simulation / export / diagnostics
+//!   systems.rs      ── ingest / simulation / export / diagnostics
 //!   tests.rs        ── unit tests (#[cfg(test)] only)
 //! ```
 //!
@@ -39,9 +39,7 @@ impl Plugin for WorldPlugin {
             .init_resource::<resources::ExportSampleState>()
             .add_systems(
                 PreUpdate,
-                (systems::fault_injection_system, systems::ingest_system)
-                    .chain()
-                    .run_if(in_state(ServerState::Started)),
+                systems::ingest_system.run_if(in_state(ServerState::Started)),
             )
             .add_systems(Update, systems::simulation_system)
             .add_systems(

substrate/src/world/systems.rs

@@ -4,7 +4,7 @@
 //!
 //! | Schedule  | Systems                              |
 //! |-----------|--------------------------------------|
-//! | PreUpdate | fault_injection → ingest             |
+//! | PreUpdate | ingest                               |
 //! | Update    | simulation                           |
 //! | PostUpdate| export → diagnostics                 |
 
@@ -144,8 +144,6 @@ fn upsert_reading(
     registry.map.insert(key, entity);
 }
 
-/// Stub — M6 inserts loss/delay here for benchmark scenarios.
-pub(super) fn fault_injection_system() {}
 
 /// Per-sensor digital-twin transform. Pulls each entity's latest
 /// `RawSensorData` into a sliding-window mean (`SmoothedValue`), and emits