fix(tables): make the first saved view the default

Creating the first view left isDefault false, so the legacy All
fallback stayed in the menu instead of handing off to the new view.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: j15z

apps/sim/lib/table/views/service.test.ts

@@ -157,6 +157,28 @@ describe('table-view mutations signal collaborators', () => {
     expect(mockSignalTableViewsChanged).toHaveBeenCalledWith('table-1')
   })
 
+  it.each([
+    { existingTotal: 0, isDefault: true },
+    { existingTotal: 1, isDefault: false },
+  ])(
+    'creates a view with isDefault=$isDefault when $existingTotal views already exist',
+    async ({ existingTotal, isDefault }) => {
+      queueTableRows(tableViews, [{ total: existingTotal }])
+      dbChainMockFns.returning.mockResolvedValueOnce([{ ...viewRow, isDefault }])
+
+      await createTableView({
+        tableId: 'table-1',
+        workspaceId: 'ws-1',
+        name: 'My View',
+        config: {},
+        userId: 'user-1',
+        columns,
+      })
+
+      expect(dbChainMockFns.values).toHaveBeenCalledWith(expect.objectContaining({ isDefault }))
+    }
+  )
+
   it('updateTableView signals when the target view exists', async () => {
     queueTableRows(tableViews, [{ id: 'view-1' }]) // the in-transaction existence pre-check
     dbChainMockFns.returning.mockResolvedValueOnce([viewRow]) // the update returning

apps/sim/lib/table/views/service.ts

@@ -464,7 +464,8 @@ export async function createTableView(data: CreateTableViewData): Promise<TableV
         and(eq(tableViews.tableId, data.tableId), eq(tableViews.workspaceId, data.workspaceId))
       )
 
-    if (Number(existing?.total ?? 0) >= TABLE_LIMITS.MAX_VIEWS_PER_TABLE) {
+    const existingTotal = Number(existing?.total ?? 0)
+    if (existingTotal >= TABLE_LIMITS.MAX_VIEWS_PER_TABLE) {
       throw new TableViewValidationError(
         `A table cannot have more than ${TABLE_LIMITS.MAX_VIEWS_PER_TABLE} saved views`
       )
@@ -478,6 +479,7 @@ export async function createTableView(data: CreateTableViewData): Promise<TableV
         workspaceId: data.workspaceId,
         name,
         config,
+        isDefault: existingTotal === 0,
         createdBy: data.userId,
       })
       .returning()