fix: print transform_llm_output appended content after CLI streaming

When the CLI streams a response token-by-token, it marks the response as
already displayed and skips re-printing after the tool loop. This means any
content appended by a transform_llm_output plugin fires after streaming — the
appended text is in the final response and stored in history, but never shown
to the user.

Fix by tracking the pre-transform response in finalize_turn() and including it
in the result dict as pre_transform_response. The CLI then checks whether the
response was transformed and, if so, prints only the appended suffix.

Previously the already_streamed branch was a no-op pass. Now it detects
post-stream plugin additions and outputs them without re-printing the streamed
body.

agent/turn_finalizer.py

@@ -547,6 +547,7 @@ def finalize_turn(
             logger.debug("turn-completion explainer failed: %s", _exp_err)
 
     _response_transformed = False
+    _pre_transform_response = None
 
     # Plugin hook: transform_llm_output
     # Fired once per turn after the tool-calling loop completes.
@@ -564,6 +565,7 @@ def finalize_turn(
             )
             for _hook_result in _transform_results:
                 if isinstance(_hook_result, str) and _hook_result:
+                    _pre_transform_response = final_response
                     final_response = _hook_result
                     _response_transformed = True
                     break  # First non-empty string wins
@@ -648,6 +650,7 @@ def finalize_turn(
         "partial": False,  # True only when stopped due to invalid tool calls
         "interrupted": interrupted,
         "response_transformed": _response_transformed,
+        "pre_transform_response": _pre_transform_response,
         "response_previewed": getattr(agent, "_response_was_previewed", False),
         "model": agent.model,
         "provider": agent.provider,

cli.py

@@ -14445,7 +14445,13 @@ class HermesCLI(CLIAgentSetupMixin, CLICommandsMixin, CLIBillingMixin):
                 elif already_streamed:
                     # Response was already streamed token-by-token with box framing;
                     # _flush_stream() already closed the box. Skip Rich Panel.
-                    pass
+                    # If a plugin appended content (shout, trace) after streaming,
+                    # print only the appended portion now.
+                    if result and result.get("response_transformed"):
+                        _pre = result.get("pre_transform_response") or ""
+                        _appended = response[len(_pre):]
+                        if _appended.strip():
+                            _cprint(_appended)
                 else:
                     _chat_console = ChatConsole()
                     _chat_console.print(Panel(