fix(layers): suppress eslint false positive on column-layer type assertions

The non-null assertions are required by tspc (ColumnGeometry.attributes
is Record<string, BinaryAttribute>) but eslint sees Geometry's narrower
type where POSITION/NORMAL are required. Suppress the lint rule with
inline comments rather than removing the assertions which breaks the
TypeScript build.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: chrisgervang

modules/layers/src/column-layer/column-layer.ts

@@ -386,8 +386,13 @@ export default class ColumnLayer<DataT = any, ExtraPropsT extends {} = {}> exten
 
   protected _updateGeometry({diskResolution, vertices, extruded, stroked}) {
     const geometry = this.getGeometry(diskResolution, vertices, extruded || stroked);
-    const positionAttribute = geometry.attributes.POSITION;
-    const normalAttribute = geometry.attributes.NORMAL;
+    // Assertions required: tspc resolves ColumnGeometry.attributes as Record<string, BinaryAttribute>
+    // (key access = T | undefined) while eslint sees Geometry's narrower type (POSITION/NORMAL required).
+    // Upstream issue: luma.gl Geometry.attributes type doesn't match subclass usage patterns.
+    // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
+    const positionAttribute = geometry.attributes.POSITION!;
+    // eslint-disable-next-line @typescript-eslint/no-unnecessary-type-assertion
+    const normalAttribute = geometry.attributes.NORMAL!;
 
     this.setState({
       fillVertexCount: positionAttribute.value.length / 3