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.

artemis/interfaces/cli/commands/init.py

@@ -134,30 +134,11 @@ def init_command() -> None:
 
     # 5. Configure MCP for AI IDEs
     console.print("\n[bold]Step 5: Connect Artemis to your AI IDE (MCP)[/bold]")
-    console.print("  [1] Antigravity / Jetski (Recommended - Default)")
-    console.print("  [2] Cursor")
-    console.print("  [3] Claude Desktop / Claude Code")
-    console.print("  [4] Windsurf")
-    console.print("  [5] VS Code / Cline / Roo Code")
-    console.print("  [6] Codex")
-    console.print("  [7] All supported IDEs")
-    console.print("  [8] Skip for now")
-    mcp_choice = Prompt.ask(
-        "Select IDE for MCP auto-install",
-        choices=["1", "2", "3", "4", "5", "6", "7", "8"],
-        default="1",
-    )
-    if mcp_choice != "8":
-        target_map = {
-            "1": "antigravity",
-            "2": "cursor",
-            "3": "claude",
-            "4": "windsurf",
-            "5": "vscode",
-            "6": "codex",
-            "7": "all",
-        }
-        target = target_map.get(mcp_choice, "antigravity")
+    console.print("  [1] Codex（MCP + 官方 artemis-use Skill）")
+    console.print("  [2] 暂时跳过")
+    mcp_choice = Prompt.ask("Select Codex integration", choices=["1", "2"], default="1")
+    if mcp_choice == "1":
+        target = "codex"
         try:
             from artemis.interfaces.cli.commands.mcp import install_mcp_config
             from mcp_server.utils import env_utils
@@ -179,7 +160,7 @@ def init_command() -> None:
             "Try running your first task:\n"
             '  [bold cyan]uv run artemis run "Open YouTube and search for Lo-Fi Hip Hop"[/bold cyan]\n\n'
             "Or connect/update your AI IDE anytime with:\n"
-            "  [bold cyan]uv run artemis mcp --install all[/bold cyan]\n\n"
+            "  [bold cyan]uv run artemis mcp --install codex[/bold cyan]\n\n"
             "Or run health diagnostics anytime with:\n"
             "  [bold cyan]uv run artemis doctor[/bold cyan]",
             title="☕ Ready to Go!",