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.

mcp_server/task_requests.py

@@ -0,0 +1,60 @@
+"""Durable admission receipts in the existing automation store; never replay a write."""
+
+import hashlib
+import json
+import time
+from uuid import uuid4
+
+from apps.admin_console.services.automation_store import identifier, store
+
+
+def lookup(request_id: str) -> dict:
+    record = store.get("mcp_task_request", identifier(request_id))
+    if record is None:
+        return {"request_id": request_id, "status": "not_found"}
+    job = store.job(record["trace_id"])
+    return {
+        **record.get("response", {}),
+        **({"status": job["status"]} if job else {}),
+        "status_scope": "task_queue" if job else "submission_receipt",
+        "request_id": request_id,
+        "trace_id": record["trace_id"],
+        "submission_state": record["state"],
+        "message": "请求已登记；请按 trace_id 查询详细状态，不要用新 request_id 自动重提。",
+    }
+
+
+def run_once(request_id: str, parameters: dict, execute) -> dict:
+    identifier(request_id)
+    fingerprint = hashlib.sha256(
+        json.dumps(parameters, sort_keys=True, ensure_ascii=False).encode("utf-8")
+    ).hexdigest()
+    with store.connection() as connection:
+        connection.execute("BEGIN IMMEDIATE")
+        row = connection.execute(
+            "SELECT payload FROM automation_records WHERE kind='mcp_task_request' AND id=?",
+            (request_id,),
+        ).fetchone()
+        if row:
+            if json.loads(row[0])["fingerprint"] != fingerprint:
+                raise ValueError("request_id 已用于不同任务内容，请使用新的编号")
+            connection.commit()
+            return {**lookup(request_id), "deduplicated": True}
+        record = {
+            "trace_id": str(uuid4()),
+            "fingerprint": fingerprint,
+            "state": "submitting",
+        }
+        connection.execute(
+            "INSERT INTO automation_records VALUES ('mcp_task_request',?,?,?)",
+            (request_id, json.dumps(record), time.time()),
+        )
+        connection.commit()
+    try:
+        response = execute(record["trace_id"])
+    except Exception:
+        # A lost reply says nothing about whether the queue accepted the task.
+        store.put("mcp_task_request", request_id, {**record, "state": "unknown"})
+        raise
+    store.put("mcp_task_request", request_id, {**record, "state": "returned", "response": response})
+    return {**response, "request_id": request_id}