fix(cli): gate tool-rendering paths with tool_progress_mode, not quiet_mode

quiet_mode was being used to suppress tool-result display when
tool_progress_mode was 'off'. But quiet_mode also gates operational
status messages, so users with /verbose + tool-progress off lost all
status output.

Adds a dedicated tool_progress_mode attribute to AIAgent; the
tool_executor result-rendering path gates on tool_progress_mode != 'off'.
The CLI passes its tool_progress_mode through agent setup and the
tool-progress cycle command syncs it onto the live agent.

Fixes #33860.

run_agent.py

@@ -358,6 +358,7 @@ class AIAgent:
         save_trajectories: bool = False,
         verbose_logging: bool = False,
         quiet_mode: bool = False,
+        tool_progress_mode: str = "all",
         ephemeral_system_prompt: str = None,
         log_prefix_chars: int = 100,
         log_prefix: str = "",
@@ -430,6 +431,7 @@ class AIAgent:
             save_trajectories=save_trajectories,
             verbose_logging=verbose_logging,
             quiet_mode=quiet_mode,
+            tool_progress_mode=tool_progress_mode,
             ephemeral_system_prompt=ephemeral_system_prompt,
             log_prefix_chars=log_prefix_chars,
             log_prefix=log_prefix,