feat(runtime): split model asset load checkpoints

crates/fparkan-assets/src/lib.rs

@@ -458,8 +458,10 @@ pub struct AssetPreparationReport {
 /// Asset preparation checkpoint emitted while resolving visual dependencies.
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum AssetPreparationPhase {
-    /// Decode a model and its corresponding WEAR table.
-    ModelAndWear,
+    /// Decode and validate an MSH model.
+    ModelMesh,
+    /// Decode the corresponding WEAR table.
+    WearTable,
     /// Resolve MAT0 material documents referenced by a WEAR table.
     Materials,
     /// Decode diffuse textures and baked lightmaps.
@@ -1513,7 +1515,7 @@ fn prepare_visual_with_repository_internal<R: ResourceRepository>(
         });
     };
 
-    on_phase(AssetPreparationPhase::ModelAndWear);
+    on_phase(AssetPreparationPhase::ModelMesh);
     let model = prepare_model_cached(repository, mesh_key, preparation_cache)?;
     let model_id = AssetId::new((identity_policy.model)(proto));
     let prepared_model = PreparedModel {
@@ -1529,6 +1531,7 @@ fn prepare_visual_with_repository_internal<R: ResourceRepository>(
         name: wear_name,
         type_id: Some(WEAR_KIND),
     };
+    on_phase(AssetPreparationPhase::WearTable);
     let wear = prepare_wear_cached(repository, &wear_key, preparation_cache)?;
     let wear_id = AssetId::new((identity_policy.wear)(proto));
     let prepared_wear = PreparedWear {

crates/fparkan-runtime/src/lib.rs

@@ -120,8 +120,10 @@ pub enum MissionLoadPhase {
     GraphVisuals,
     /// Prepare all reachable visual/resource dependencies.
     Assets,
-    /// Decode model meshes and their WEAR tables.
-    AssetModels,
+    /// Decode and validate MSH model meshes.
+    AssetModelMeshes,
+    /// Decode WEAR material tables.
+    AssetWearTables,
     /// Resolve MAT0 material documents.
     AssetMaterials,
     /// Decode diffuse textures and baked lightmaps.
@@ -707,7 +709,8 @@ fn load_mission_with_options_and_progress(
     let mut last_asset_phase = None;
     let mut observe_asset_phase = |phase| {
         let runtime_phase = match phase {
-            AssetPreparationPhase::ModelAndWear => MissionLoadPhase::AssetModels,
+            AssetPreparationPhase::ModelMesh => MissionLoadPhase::AssetModelMeshes,
+            AssetPreparationPhase::WearTable => MissionLoadPhase::AssetWearTables,
             AssetPreparationPhase::Materials => MissionLoadPhase::AssetMaterials,
             AssetPreparationPhase::Textures => MissionLoadPhase::AssetTextures,
         };

docs/tomes/05-render.md

@@ -1063,14 +1063,15 @@ provenance while avoiding repeat format work for repeated components. The same
 demonstrate an additional checkpoint advance from this cache; it must not be
 reported as a measured startup improvement.
 
-`Assets` now has three ordered diagnostic sub-checkpoints: `AssetModels`
-(MSH and WEAR), `AssetMaterials` (MAT0) and `AssetTextures` (diffuse TEXM and
-lightmaps). The callback is observational: it neither changes the preparation
-order nor deduplicates requests. A fresh controlled 60-second canonical GOG
-`Autodemo.00` first-root probe reached `AssetModels` and did not reach
+`Assets` now has four ordered diagnostic sub-checkpoints: `AssetModelMeshes`
+(MSH), `AssetWearTables` (WEAR), `AssetMaterials` (MAT0) and `AssetTextures`
+(diffuse TEXM and lightmaps). The callback is observational: it neither changes
+the preparation order nor deduplicates requests. A fresh controlled 60-second
+canonical GOG `Autodemo.00` first-root probe reached `AssetWearTables` but not
 `AssetMaterials`; its created process was terminated and no native frame was
-reported. This narrows the next investigation to model/WEAR preparation, but
-does not by itself attribute the delay to either decoder or I/O.
+reported. At least one MSH therefore finished before the timeout, but this does
+not attribute the remaining interval to WEAR decoding rather than later
+MSH/WEAR iteration or archive I/O.
 
 The same source-axis proof now applies to `TerrainWorld`: its `Land.msh` surface
 height query and `Land.map` areal/grid lookup use XY ground coordinates, return