fix(autolayout): pass through gridsize

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/hooks/use-auto-layout.ts

@@ -3,6 +3,7 @@ import { createLogger } from '@sim/logger'
 import { useReactFlow } from 'reactflow'
 import type { AutoLayoutOptions } from '@/app/workspace/[workspaceId]/w/[workflowId]/utils/auto-layout-utils'
 import { applyAutoLayoutAndUpdateStore as applyAutoLayoutStandalone } from '@/app/workspace/[workspaceId]/w/[workflowId]/utils/auto-layout-utils'
+import { useSnapToGridSize } from '@/hooks/queries/general-settings'
 import { useCanvasViewport } from '@/hooks/use-canvas-viewport'
 
 export type { AutoLayoutOptions }
@@ -13,21 +14,28 @@ const logger = createLogger('useAutoLayout')
  * Hook providing auto-layout functionality for workflows.
  * Binds workflowId context and provides memoized callback for React components.
  * Includes automatic fitView animation after successful layout.
+ * Automatically uses the user's snap-to-grid setting for grid-aligned layout.
  *
  * Note: This hook requires a ReactFlowProvider ancestor.
  */
 export function useAutoLayout(workflowId: string | null) {
   const reactFlowInstance = useReactFlow()
   const { fitViewToBounds } = useCanvasViewport(reactFlowInstance)
+  const snapToGridSize = useSnapToGridSize()
 
   const applyAutoLayoutAndUpdateStore = useCallback(
     async (options: AutoLayoutOptions = {}) => {
       if (!workflowId) {
         return { success: false, error: 'No workflow ID provided' }
       }
-      return applyAutoLayoutStandalone(workflowId, options)
+      // Include gridSize from user's snap-to-grid setting
+      const optionsWithGrid: AutoLayoutOptions = {
+        ...options,
+        gridSize: options.gridSize ?? (snapToGridSize > 0 ? snapToGridSize : undefined),
+      }
+      return applyAutoLayoutStandalone(workflowId, optionsWithGrid)
     },
-    [workflowId]
+    [workflowId, snapToGridSize]
   )
 
   /**

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/utils/auto-layout-utils.ts

@@ -21,6 +21,7 @@ export interface AutoLayoutOptions {
     x?: number
     y?: number
   }
+  gridSize?: number
 }
 
 /**
@@ -62,6 +63,7 @@ export async function applyAutoLayoutAndUpdateStore(
         x: options.padding?.x ?? DEFAULT_LAYOUT_PADDING.x,
         y: options.padding?.y ?? DEFAULT_LAYOUT_PADDING.y,
       },
+      gridSize: options.gridSize,
     }
 
     // Call the autolayout API route