fix: log only on system api key failures (#13968)

Removes sentry flooding of unnecessary rubyllm logs of wrong API key.
Logs only system api key error since it would be P0.

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

lib/integrations/llm_base_service.rb

@@ -1,5 +1,6 @@
 class Integrations::LlmBaseService
   include Integrations::LlmInstrumentation
+  include Llm::ExceptionTrackable
 
   # gpt-4o-mini supports 128,000 tokens
   # 1 token is approx 4 characters
@@ -100,13 +101,14 @@ class Integrations::LlmBaseService
   def execute_ruby_llm_request(parsed_body)
     messages = parsed_body['messages']
     model = parsed_body['model']
+    credential = llm_credential
 
-    Llm::Config.with_api_key(hook.settings['api_key'], api_base: api_base) do |context|
+    Llm::Config.with_api_key(credential[:api_key], api_base: api_base) do |context|
       chat = context.chat(model: model)
       setup_chat_with_messages(chat, messages)
     end
   rescue StandardError => e
-    ChatwootExceptionTracker.new(e, account: hook.account).capture_exception
+    capture_llm_exception(e, credential: credential)
     build_error_response_from_exception(e, messages)
   end
 
@@ -164,6 +166,14 @@ class Integrations::LlmBaseService
     }
   end
 
+  def llm_credential
+    @llm_credential ||= { api_key: hook.settings['api_key'], source: :hook }
+  end
+
+  def exception_tracking_account
+    hook.account
+  end
+
   def build_error_response_from_exception(error, messages)
     { error: error.message, request_messages: messages }
   end