fix(chat): honor ui_lang on WebSocket turns; ops NE display by host_name

Resolve runtime language from ui_lang and chat.send lang instead of hardcoding zh.
Align generalist/ops prompts with user language and require host_name (not ne_id) in ops outputs.

Co-authored-by: Cursor <cursoragent@cursor.com>

interfaces/admin/chat_api.py

@@ -148,8 +148,9 @@ def _safe_rel_avatar_name(name: str) -> str:
 
 
 def _api_lang(store: SqliteStore) -> str:
-    v = str(store.get_setting("ui_lang") or "zh").strip().lower()
-    return v if v in ("zh", "en") else "zh"
+    from runtime.lang import resolve_runtime_lang
+
+    return resolve_runtime_lang(store=store)
 
 
 def _init_gateway_executor(

interfaces/admin/static/chat.js

@@ -4134,6 +4134,7 @@ async function renderChatUi() {
           memory_mode: String(memoryMode || "default"),
           execution_mode: String(executionMode || "agent"),
           plan_agent_version: outboundPlanAgentVersion(),
+          lang: currentLang === "en" ? "en" : "zh",
         },
       };
       this.ws.send(JSON.stringify(req));

interfaces/ws/server_methods_bridge.py

@@ -75,6 +75,7 @@ def build_gateway_context(
             "acp_parent_run_id": str(p.get("acp_parent_run_id") or ""),
             "acp_child_run_id": str(p.get("acp_child_run_id") or ""),
             "runId": rid,
+            "lang": str(p.get("lang") or "").strip().lower() or None,
         }
         async def _delayed() -> None:
             await asyncio.sleep(0.05)
@@ -113,6 +114,7 @@ def build_gateway_context(
             "acp_parent_run_id": str(p.get("acp_parent_run_id") or ""),
             "acp_child_run_id": str(p.get("acp_child_run_id") or ""),
             "runId": run_id,
+            "lang": str(p.get("lang") or "").strip().lower() or None,
         }
         with abort_lock:
             active_run_session[str(run_id)] = str(session_id)

interfaces/ws/turn_runner.py

@@ -11,6 +11,7 @@ from typing import Any, Callable
 from runtime.agents.factory import build_gateway_executor
 from runtime.chat.persist_terminal_fallback import persist_assistant_text_if_turn_missing
 from runtime.gateway import OclawGateway
+from runtime.lang import resolve_runtime_lang
 from runtime.types import StandardMessage
 from svc.config.paths import db_path
 from svc.persistence.sqlite_store import SqliteStore
@@ -164,7 +165,7 @@ async def run_agent_turn_via_bridge(
     ctx = conn.auth_ctx or {}
     tenant_id = str(ctx.get("tenant_id") or "")
     user_id = str(ctx.get("user_id") or "")
-    lang = "zh"
+    lang = resolve_runtime_lang(store=store, hint=str(p.get("lang") or ""))
 
     manager_agent = build_gateway_executor(
         store,