feat: Add temporary account setting to disable Captain auto-resolve (#13680)

Add a temporary `captain_disable_auto_resolve` boolean setting on
accounts to prevent Captain from resolving conversations. Guards both
the scheduled resolution job and the assistant's resolve tool.

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

enterprise/app/jobs/captain/inbox_pending_conversations_resolution_job.rb

@@ -2,6 +2,8 @@ class Captain::InboxPendingConversationsResolutionJob < ApplicationJob
   queue_as :low
 
   def perform(inbox)
+    return if inbox.account.captain_disable_auto_resolve
+
     Current.executed_by = inbox.captain_assistant
 
     resolvable_conversations = inbox.conversations.pending.where('last_activity_at < ? ', Time.now.utc - 1.hour).limit(Limits::BULK_ACTIONS_LIMIT)

enterprise/app/jobs/enterprise/account/conversations_resolution_scheduler_job.rb

@@ -12,6 +12,7 @@ module Enterprise::Account::ConversationsResolutionSchedulerJob
       inbox = captain_inbox.inbox
 
       next if inbox.email?
+      next if inbox.account.captain_disable_auto_resolve
 
       Captain::InboxPendingConversationsResolutionJob.perform_later(
         inbox

enterprise/lib/captain/tools/resolve_conversation_tool.rb

@@ -6,6 +6,7 @@ class Captain::Tools::ResolveConversationTool < Captain::Tools::BasePublicTool
     conversation = find_conversation(tool_context.state)
     return 'Conversation not found' unless conversation
     return "Conversation ##{conversation.display_id} is already resolved" if conversation.resolved?
+    return 'Auto-resolve is disabled for this account' if conversation.account.captain_disable_auto_resolve
 
     log_tool_usage('resolve_conversation', { conversation_id: conversation.id, reason: reason })