fix(hubspot): align total fallback with type definitions in search tools

Use `?? 0` instead of `?? null` for search tools where the type declares
`total: number`. Also declare `total` in list_lists metadata output schema.

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

Author: waleedlatif1

apps/sim/tools/hubspot/list_lists.ts

@@ -1,6 +1,6 @@
 import { createLogger } from '@sim/logger'
 import type { HubSpotListListsParams, HubSpotListListsResponse } from '@/tools/hubspot/types'
-import { LISTS_ARRAY_OUTPUT, METADATA_OUTPUT, PAGING_OUTPUT } from '@/tools/hubspot/types'
+import { LISTS_ARRAY_OUTPUT, METADATA_OUTPUT_PROPERTIES, PAGING_OUTPUT } from '@/tools/hubspot/types'
 import type { ToolConfig } from '@/tools/types'
 
 const logger = createLogger('HubSpotListLists')
@@ -94,7 +94,14 @@ export const hubspotListListsTool: ToolConfig<HubSpotListListsParams, HubSpotLis
   outputs: {
     lists: LISTS_ARRAY_OUTPUT,
     paging: PAGING_OUTPUT,
-    metadata: METADATA_OUTPUT,
+    metadata: {
+      type: 'object',
+      description: 'Response metadata',
+      properties: {
+        ...METADATA_OUTPUT_PROPERTIES,
+        total: { type: 'number', description: 'Total number of lists matching the query', optional: true },
+      },
+    },
     success: { type: 'boolean', description: 'Operation success status' },
   },
 }

apps/sim/tools/hubspot/search_companies.ts

@@ -152,7 +152,7 @@ export const hubspotSearchCompaniesTool: ToolConfig<
       success: true,
       output: {
         companies: data.results || [],
-        total: data.total ?? null,
+        total: data.total ?? 0,
         paging: data.paging ?? null,
         metadata: {
           totalReturned: data.results?.length || 0,

apps/sim/tools/hubspot/search_contacts.ts

@@ -152,7 +152,7 @@ export const hubspotSearchContactsTool: ToolConfig<
       success: true,
       output: {
         contacts: data.results || [],
-        total: data.total ?? null,
+        total: data.total ?? 0,
         paging: data.paging ?? null,
         metadata: {
           totalReturned: data.results?.length || 0,

apps/sim/tools/hubspot/search_deals.ts

@@ -131,7 +131,7 @@ export const hubspotSearchDealsTool: ToolConfig<
       success: true,
       output: {
         deals: data.results || [],
-        total: data.total ?? null,
+        total: data.total ?? 0,
         paging: data.paging ?? null,
         metadata: {
           totalReturned: data.results?.length || 0,

apps/sim/tools/hubspot/search_tickets.ts

@@ -134,7 +134,7 @@ export const hubspotSearchTicketsTool: ToolConfig<
       success: true,
       output: {
         tickets: data.results || [],
-        total: data.total ?? null,
+        total: data.total ?? 0,
         paging: data.paging ?? null,
         metadata: {
           totalReturned: data.results?.length || 0,