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/tools/exploration.py

@@ -10,6 +10,8 @@ from mcp_server.tools.automation import _id, _request
 async def mobile_exploration(
     action: Literal[
         "list",
+        "deletion_preview",
+        "delete",
         "get",
         "create",
         "start",
@@ -33,9 +35,12 @@ async def mobile_exploration(
     demonstration_id: str | None = None,
     after: int = 0,
     version: int | None = None,
+    user_confirmed: bool = False,
 ) -> Any:
     """Explore ONE complex test with user guidance and produce a reusable case.
 
+    deletion_preview lists affected conversation runs; delete requires user_confirmed=true
+    after the user requests deletion. Independent validation runs are preserved.
     Read-only list/get/case never execute tasks. create stores {goal,config?,task_config?};
     start/continue explicitly enqueue or resume Pro exploration. Independent defaults:
     gpt-6.1-sol/high, 1800 active seconds; timeout pauses, never fails by itself.
@@ -49,11 +54,19 @@ async def mobile_exploration(
     poll get.generations for completion. validate payload={version,profile,task_config?}
     explicitly runs the saved version in Flash/Pro; batch additionally accepts name and
     creates a DRAFT batch, never starts it. Exploration pass and rerun pass are separate.
-    Use stable request_id for every mutation except pause/stop, reusing it on transport
+    Use stable request_id for every mutation except pause/stop/delete, reusing it on transport
     retries. No API keys; configure secrets in the Web UI. mobile_config(section='exploration')
     controls non-secret defaults. After errors call mobile_diagnose before resubmitting.
     """
     base = "/api/explorations"
+    if action in {"deletion_preview", "delete"}:
+        path = f"{base}/{_id(exploration_id)}"
+        if action == "deletion_preview":
+            return await _request("GET", path + "/deletion-preview")
+        if not user_confirmed:
+            raise ValueError("删除探索需要用户明确要求；先用 deletion_preview 核对影响范围")
+        return await _request("DELETE", path)
+
     if action in {"list", "get", "case"}:
         if payload or request_id:
             raise ValueError("查询不接受写入内容")