feat: realign zhihu browser callback runtime

Keep Zhihu browser-attached execution on the callback-host path so direct routes, runtime wiring, and service startup stay aligned for the current websocket browser flow.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/compat/runtime.rs

@@ -16,6 +16,7 @@ use crate::compat::config_adapter::{
     build_zeroclaw_config_from_sgclaw_settings, resolve_skills_dir_from_sgclaw_settings,
 };
 use crate::compat::event_bridge::log_entry_for_turn_event;
+use crate::compat::workflow_executor::parse_generated_article_draft;
 use crate::compat::openxml_office_tool::OpenXmlOfficeTool;
 use crate::compat::screen_html_export_tool::ScreenHtmlExportTool;
 use crate::config::{DeepSeekSettings, OfficeBackend, SgClawSettings};
@@ -101,6 +102,43 @@ pub fn execute_task_with_sgclaw_settings<T: Transport + 'static>(
     ))
 }
 
+pub(crate) fn generate_zhihu_article_draft(
+    instruction: &str,
+    topic: &str,
+    _task_context: &CompatTaskContext,
+    workspace_root: &Path,
+    settings: &SgClawSettings,
+) -> Result<crate::compat::workflow_executor::ArticleDraft, PipeError> {
+    let mut generation_settings = settings.clone();
+    generation_settings.runtime_profile = crate::runtime::RuntimeProfile::GeneralAssistant;
+
+    let config = build_zeroclaw_config_from_sgclaw_settings(workspace_root, &generation_settings);
+    let provider = build_provider(&config)?;
+    let runtime = tokio::runtime::Runtime::new()
+        .map_err(|err| PipeError::Protocol(format!("failed to create tokio runtime: {err}")))?;
+    let generation_prompt = format!(
+        "为知乎文章生成可直接发布的草稿。用户原始请求：{instruction}\n\n主题：{topic}\n\n请严格只输出以下格式，不要添加解释、前言、代码块或其他内容：\n标题：<简洁具体的中文标题>\n正文：<适合知乎发布的中文正文，使用自然段>"
+    );
+
+    let generated = runtime.block_on(async move {
+        provider
+            .chat_with_system(
+                Some("You write concise Chinese Zhihu article drafts. Return only the requested title/body format."),
+                &generation_prompt,
+                config.default_model.as_deref().unwrap_or("deepseek-chat"),
+                config.default_temperature,
+            )
+            .await
+            .map_err(map_anyhow_to_pipe_error)
+    })?;
+
+    parse_generated_article_draft(&generated).ok_or_else(|| {
+        PipeError::Protocol(format!(
+            "generated Zhihu article draft did not match 标题/正文 format: {generated}"
+        ))
+    })
+}
+
 pub async fn execute_task_with_provider(
     transport: &dyn crate::agent::AgentEventSink,
     browser_backend: Arc<dyn BrowserBackend>,