fix(review): hide the retired get_platform_actions chip like search_documentation

The two retirement shims disagreed. search_documentation is in
HIDDEN_TOOL_NAMES with no TOOL_TITLES entry, so a call from an older build
renders nothing. get_platform_actions was only hidden:true in the generated
catalog, which isToolHiddenInUi never consults, and it kept a live title — so
the same situation surfaced a "Getting platform actions" chip for a capability
that no longer exists.

Hiding also drops the row from historical transcripts, since isToolHiddenInUi
runs at transcript build time. That is accepted and is the existing behavior
for search_documentation. Verified it cannot error: every consumer skips via
continue or returns undefined, nothing indexes off the omitted entry, and
neither id is a subagent trigger, so no tool group is orphaned.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: j15z

apps/sim/lib/copilot/tools/client/hidden-tools.ts

@@ -6,12 +6,16 @@
 // resolvable for one release so a mixed-version deploy works. A call only ever
 // arrives from an older Mothership build and renders as the search_docs it maps
 // onto, so it needs no chip of its own. Remove with the rest of the shim.
+// get_platform_actions is retired the same way: the tool is gone, the id stays
+// in the catalog for one release, and a call from an older build should not
+// surface a chip for a capability that no longer exists.
 const HIDDEN_TOOL_NAMES = new Set([
   'load_agent_skill',
   'load_custom_tool',
   'load_integration_tool',
   'search_integration_tools',
   'search_documentation',
+  'get_platform_actions',
 ])
 
 export function isToolHiddenInUi(toolName: string | undefined): boolean {

apps/sim/lib/copilot/tools/tool-display.ts

@@ -443,7 +443,6 @@ const TOOL_TITLES: Record<string, string> = {
   get_block_upstream_references: 'Getting block references',
   get_deployed_workflow_state: 'Getting deployed workflow',
   get_deployment_log: 'Getting deployment logs',
-  get_platform_actions: 'Getting platform actions',
   get_scheduled_task_logs: 'Getting scheduled task logs',
   get_workflow_data: 'Getting workflow data',
   get_workflow_run_options: 'Getting run options',