refactor(custom-blocks): drop the workspaceId three mutation hooks never use

`usePublishCustomBlock`, `useUpdateCustomBlock` and `useDeleteCustomBlock` each
take `workspaceId?: string` and never read it. `custom-block-detail.tsx` passes it
to all three.

The parameter looks like it was meant to narrow the invalidation to
`customBlockKeys.list(workspaceId)`, but `lists()` is the level CLAUDE.md's
targeted-invalidation rule actually prescribes, and it is a correct superset. So
the invalidation is right as written and the parameter is simply vestigial —
removing it is the honest fix, and narrowing the key would be a separate call
with its own risk of under-invalidating.

Worth recording that these three were reported to me as having zero callers and
therefore being dead exports. They are not: the search that produced that claim
omitted `apps/sim/ee`, where all three are used.

(cherry picked from commit 2d0854a)

Author: waleedlatif1

apps/sim/ee/custom-blocks/components/custom-block-detail.tsx

@@ -85,9 +85,9 @@ export function CustomBlockDetail({ blockId, workspaceId, onBack }: CustomBlockD
     [blocks, blockId]
   )
 
-  const publish = usePublishCustomBlock(workspaceId)
-  const update = useUpdateCustomBlock(workspaceId)
-  const remove = useDeleteCustomBlock(workspaceId)
+  const publish = usePublishCustomBlock()
+  const update = useUpdateCustomBlock()
+  const remove = useDeleteCustomBlock()
 
   // Needed in both modes: the source picker (create) and the manage gate (edit).
   const { data: workspaces = [] } = useWorkspacesQuery()

apps/sim/hooks/queries/custom-blocks.ts

@@ -75,7 +75,7 @@ export function useCustomBlockUsageCounts(blockId?: string, options?: { enabled?
   })
 }
 
-export function usePublishCustomBlock(workspaceId?: string) {
+export function usePublishCustomBlock() {
   const queryClient = useQueryClient()
   return useMutation({
     mutationFn: (body: PublishCustomBlockBody) => requestJson(publishCustomBlockContract, { body }),
@@ -85,7 +85,7 @@ export function usePublishCustomBlock(workspaceId?: string) {
   })
 }
 
-export function useUpdateCustomBlock(workspaceId?: string) {
+export function useUpdateCustomBlock() {
   const queryClient = useQueryClient()
   return useMutation({
     mutationFn: ({ id, ...body }: UpdateCustomBlockBody & { id: string }) =>
@@ -96,7 +96,7 @@ export function useUpdateCustomBlock(workspaceId?: string) {
   })
 }
 
-export function useDeleteCustomBlock(workspaceId?: string) {
+export function useDeleteCustomBlock() {
   const queryClient = useQueryClient()
   return useMutation({
     mutationFn: (id: string) => requestJson(deleteCustomBlockContract, { params: { id } }),