fix(frontend): wait for columns before an auto view loads the hog vm

With the Auto visualization and no columns yet, the effective type resolves to
a table, so a query with formatting rules started the Hog VM download before
its data showed it was a chart. needsHogVm now treats Auto as undecided until
columns arrive. An explicit table view still starts the load at once.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Generated-By: PostHog Desktop
Task-Id: acec8cb2-f000-4747-a659-05b72b42513e

Author: pauldambra

frontend/src/queries/nodes/DataVisualization/dataVisualizationLogic.test.ts

@@ -682,6 +682,12 @@ describe('dataVisualizationLogic', () => {
             rules: [],
             hogVm: null,
         },
+        {
+            name: 'does not load the Hog VM for an auto visualization before its data arrives',
+            display: ChartDisplayType.Auto,
+            rules: [equalsRule],
+            hogVm: null,
+        },
         {
             name: 'does not load the Hog VM for a chart that kept table formatting rules',
             display: ChartDisplayType.ActionsLineGraph,

frontend/src/queries/nodes/DataVisualization/dataVisualizationLogic.ts

@@ -988,7 +988,9 @@ export interface dataVisualizationLogicMeta {
                 | null
         ) => ChartDisplayType
         needsHogVm: (
+            visualizationType: ChartDisplayType,
             effectiveVisualizationType: ChartDisplayType,
+            columns: Column[],
             conditionalFormattingRules: ConditionalFormattingRule[]
         ) => boolean
         hogVmLoadFailed: (needsHogVm: boolean, hogVmLoadError: unknown) => boolean
@@ -1914,10 +1916,18 @@ export const dataVisualizationLogic = kea<dataVisualizationLogicType>([
             ): ChartDisplayType => getAutoVisualizationType(columns, rowCountFromResponse(response)),
         ],
         // The Hog VM and its crypto polyfills are large, so only a table that shows formatting rules loads them.
+        // Auto resolves to a table until columns arrive, so it waits for them before it decides.
         needsHogVm: [
-            (s) => [s.effectiveVisualizationType, s.conditionalFormattingRules],
-            (visualizationType: ChartDisplayType, rules: ConditionalFormattingRule[]): boolean =>
-                visualizationType === ChartDisplayType.ActionsTable && rules.length > 0,
+            (s) => [s.visualizationType, s.effectiveVisualizationType, s.columns, s.conditionalFormattingRules],
+            (
+                visualizationType: ChartDisplayType,
+                effectiveVisualizationType: ChartDisplayType,
+                columns: Column[],
+                rules: ConditionalFormattingRule[]
+            ): boolean =>
+                (visualizationType !== ChartDisplayType.Auto || columns.length > 0) &&
+                effectiveVisualizationType === ChartDisplayType.ActionsTable &&
+                rules.length > 0,
         ],
         hogVmLoadFailed: [
             (s) => [s.needsHogVm, s.hogVmLoadError],