ui: idle fragment tick 5s + streamlit>=1.62; fix !!!Error tail check

frontends/stapp.py

@@ -437,7 +437,7 @@ if prompt:
     _start_main_task(prompt)
 
 # Stream hosts only when this session owns the queue.
-# Single always-on 1s tick below (stream / detached / hub / idle) — never unregistered.
+# Poll quickly while active; reduce idle renderer churn.
 _stream_fh = _stream_ls = None
 if st.session_state.get('display_queue') is not None:
     with st.chat_message("assistant"):
@@ -448,9 +448,9 @@ if st.session_state.get('display_queue') is not None:
 elif agent.is_running:
     st.chat_message("assistant").markdown(T("detached_running"))
 
-@st.fragment(run_every=timedelta(seconds=1))
+@st.fragment(run_every=timedelta(seconds=1 if (_stream_fh is not None or agent.is_running or st.session_state.get('loop_enabled')) else 5))
 def _tick():
-    """One heartbeat: if-dispatch stream / detached / hub / idle. Always registered."""
+    """Poll every second while active and every five seconds while idle."""
     # 1) Own stream: drain done, paint all_outputs
     if _stream_fh is not None:
         done = _poll_main_task()

ga.py

@@ -483,7 +483,7 @@ class GenericAgentHandler(BaseHandler):
         if not response or (not content.strip() and not thinking.strip()):
             yield "[Warn] LLM returned an empty response. Retrying...\n"
             return self._retry_or_exit("[ERROR] Blank response, regenerate and tooluse")
-        if '[!!! 流异常中断' in content[-100:] or '!!!Error:' in content[-100:] or (content.endswith('</summary>') and len(content) < 100):
+        if '[!!! 流异常中断' in content[-100:] or '!!!Error:' in content[50:][-100:] or (content.endswith('</summary>') and len(content) < 100):
             return self._retry_or_exit("[ERROR] Incomplete response. Regenerate and tooluse.")
         if 'max_tokens !!!]' in content[-100:]:
             return self._retry_or_exit("[ERROR] max_tokens limit reached. Use multi small steps to do it.")

pyproject.toml

@@ -20,7 +20,7 @@ dependencies = [
 # select extras, not all. match current task/env.
 # examples: .[ui] for GUI, bot deps only if bot needed.
 ui = [
-    "streamlit>=1.28",
+    "streamlit>=1.62",
     "pywebview>=4.0",
     "textual>=0.70",
     # tui_v3 (scrollback-first TUI) — prompt_toolkit replaces textual; rich is