feat(ee): Captain custom http tools (#12584)

To test this out, use the following PR:
https://github.com/chatwoot/chatwoot/pull/12585

---------

Co-authored-by: Pranav <pranavrajs@gmail.com>

enterprise/app/models/concerns/captain_tools_helpers.rb

@@ -8,12 +8,12 @@ module Concerns::CaptainToolsHelpers
   TOOL_REFERENCE_REGEX = %r{\[[^\]]+\]\(tool://([^/)]+)\)}
 
   class_methods do
-    # Returns all available agent tools with their metadata.
+    # Returns all built-in agent tools with their metadata.
     # Only includes tools that have corresponding class files and can be resolved.
     #
     # @return [Array<Hash>] Array of tool hashes with :id, :title, :description, :icon
-    def available_agent_tools
-      @available_agent_tools ||= load_agent_tools
+    def built_in_agent_tools
+      @built_in_agent_tools ||= load_agent_tools
     end
 
     # Resolves a tool class from a tool ID.
@@ -26,12 +26,12 @@ module Concerns::CaptainToolsHelpers
       class_name.safe_constantize
     end
 
-    # Returns an array of all available tool IDs.
-    # Convenience method that extracts just the IDs from available_agent_tools.
+    # Returns an array of all built-in tool IDs.
+    # Convenience method that extracts just the IDs from built_in_agent_tools.
     #
-    # @return [Array<String>] Array of available tool IDs
-    def available_tool_ids
-      @available_tool_ids ||= available_agent_tools.map { |tool| tool[:id] }
+    # @return [Array<String>] Array of built-in tool IDs
+    def built_in_tool_ids
+      @built_in_tool_ids ||= built_in_agent_tools.map { |tool| tool[:id] }
     end
 
     private