feat: add official Codex skill and harden task execution

Install and update artemis-use with task diagnostics and plugin guidance. Preserve cross-device file receipts, review canonical reports, guard stage transitions and reduce small history summaries. Improve exploration lifecycle, request recovery and browser live connections.

apps/admin_console/services/request_diagnostics.py

@@ -7,7 +7,9 @@ import time
 from apps.admin_console.database.connection import db_session
 
 
-def request_diagnostics(session_id: str, *, db_path=None, limit: int | None = None) -> dict:
+def request_diagnostics(
+    session_id: str, *, db_path=None, limit: int | None = None, offset: int = 0
+) -> dict:
     with db_session(db_path) as conn:
         session = conn.execute(
             "SELECT status FROM sessions WHERE session_id = ?", (session_id,)
@@ -17,9 +19,13 @@ def request_diagnostics(session_id: str, *, db_path=None, limit: int | None = No
             "ORDER BY timestamp DESC"
         )
         params: tuple = (session_id,)
+        total = conn.execute(
+            "SELECT count(*) FROM traces WHERE session_id=? AND type='llm_diagnostic'",
+            params,
+        ).fetchone()[0]
         if limit is not None:
-            sql += " LIMIT ?"
-            params += (limit,)
+            sql += " LIMIT ? OFFSET ?"
+            params += (limit, offset)
         rows = conn.execute(sql, params).fetchall()
     requests = []
     seen = set()
@@ -34,6 +40,7 @@ def request_diagnostics(session_id: str, *, db_path=None, limit: int | None = No
         request_id = value.get("request_id")
         value["active"] = (
             running
+            and offset == 0
             and request_id not in seen
             and value.get("phase")
             in {
@@ -64,6 +71,9 @@ def request_diagnostics(session_id: str, *, db_path=None, limit: int | None = No
         "session_status": session["status"] if session else "unknown",
         "collected_at": time.time(),
         "requests": requests,
+        "total": total,
+        "offset": offset,
+        "next_offset": offset + limit if limit is not None and offset + limit < total else None,
         "note": "时间戳为 Unix 秒；timestamps_utc 为 UTC。HTTP 200 不代表完整输出。usage=null 表示服务未报告用量。历史任务没有记录的字段无法补推。",
     }